mirror of
https://github.com/halfrost/LeetCode-Go.git
synced 2025-07-24 10:37:33 +08:00
Merge branch 'master' of https://github.com/halfrost/LeetCode-Go
This commit is contained in:
novahe
@ -135,5 +135,5 @@ func romanToInt(s string) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0012.Integer-to-Roman/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0015.3Sum/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0014.Longest-Common-Prefix/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,71 @@
|
||||
# [14. Longest Common Prefix](https://leetcode.com/problems/longest-common-prefix/)
|
||||
|
||||
## 题目
|
||||
|
||||
Write a function to find the longest common prefix string amongst an array of strings.
|
||||
|
||||
If there is no common prefix, return an empty string "".
|
||||
|
||||
**Example 1**:
|
||||
|
||||
Input: strs = ["flower","flow","flight"]
|
||||
Output: "fl"
|
||||
|
||||
**Example 2**:
|
||||
|
||||
Input: strs = ["dog","racecar","car"]
|
||||
Output: ""
|
||||
Explanation: There is no common prefix among the input strings.
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= strs.length <= 200
|
||||
- 0 <= strs[i].length <= 200
|
||||
- strs[i] consists of only lower-case English letters.
|
||||
|
||||
## 题目大意
|
||||
|
||||
编写一个函数来查找字符串数组中的最长公共前缀。
|
||||
|
||||
如果不存在公共前缀，返回空字符串 ""。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 对 strs 按照字符串长度进行升序排序，求出 strs 中长度最小字符串的长度 minLen
|
||||
- 逐个比较长度最小字符串与其它字符串中的字符，如果不相等就返回 commonPrefix,否则就把该字符加入 commonPrefix
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "sort"
|
||||
|
||||
func longestCommonPrefix(strs []string) string {
|
||||
sort.Slice(strs, func(i, j int) bool {
|
||||
return len(strs[i]) <= len(strs[j])
|
||||
})
|
||||
minLen := len(strs[0])
|
||||
if minLen == 0 {
|
||||
return ""
|
||||
}
|
||||
var commonPrefix []byte
|
||||
for i := 0; i < minLen; i++ {
|
||||
for j := 1; j < len(strs); j++ {
|
||||
if strs[j][i] != strs[0][i] {
|
||||
return string(commonPrefix)
|
||||
}
|
||||
}
|
||||
commonPrefix = append(commonPrefix, strs[0][i])
|
||||
}
|
||||
return string(commonPrefix)
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0013.Roman-to-Integer/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0015.3Sum/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -120,6 +120,6 @@ func threeSum1(nums []int) [][]int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0013.Roman-to-Integer/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0014.Longest-Common-Prefix/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0016.3Sum-Closest/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -57,6 +57,7 @@ Output: [1]
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
// 解法一
|
||||
func nextPermutation(nums []int) {
|
||||
i, j := 0, 0
|
||||
for i = len(nums) - 2; i >= 0; i-- {
|
||||
@ -86,6 +87,47 @@ func reverse(nums *[]int, i, j int) {
|
||||
func swap(nums *[]int, i, j int) {
|
||||
(*nums)[i], (*nums)[j] = (*nums)[j], (*nums)[i]
|
||||
}
|
||||
|
||||
// 解法二
|
||||
// [2,(3),6,5,4,1] -> 2,(4),6,5,(3),1 -> 2,4, 1,3,5,6
|
||||
func nextPermutation1(nums []int) {
|
||||
var n = len(nums)
|
||||
var pIdx = checkPermutationPossibility(nums)
|
||||
if pIdx == -1 {
|
||||
reverse(&nums, 0, n-1)
|
||||
return
|
||||
}
|
||||
|
||||
var rp = len(nums) - 1
|
||||
// start from right most to leftward,find the first number which is larger than PIVOT
|
||||
for rp > 0 {
|
||||
if nums[rp] > nums[pIdx] {
|
||||
swap(&nums, pIdx, rp)
|
||||
break
|
||||
} else {
|
||||
rp--
|
||||
}
|
||||
}
|
||||
// Finally, Reverse all elements which are right from pivot
|
||||
reverse(&nums, pIdx+1, n-1)
|
||||
}
|
||||
|
||||
// checkPermutationPossibility returns 1st occurrence Index where
|
||||
// value is in decreasing order(from right to left)
|
||||
// returns -1 if not found(it's already in its last permutation)
|
||||
func checkPermutationPossibility(nums []int) (idx int) {
|
||||
// search right to left for 1st number(from right) that is not in increasing order
|
||||
var rp = len(nums) - 1
|
||||
for rp > 0 {
|
||||
if nums[rp-1] < nums[rp] {
|
||||
idx = rp - 1
|
||||
return idx
|
||||
}
|
||||
rp--
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -99,6 +99,7 @@ You have to rotate the image **[in-place](https://en.wikipedia.org/wiki/In-plac
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
// 解法一
|
||||
func rotate(matrix [][]int) {
|
||||
length := len(matrix)
|
||||
// rotate by diagonal 对角线变换
|
||||
@ -114,6 +115,50 @@ func rotate(matrix [][]int) {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// 解法二
|
||||
func rotate1(matrix [][]int) {
|
||||
n := len(matrix)
|
||||
if n == 1 {
|
||||
return
|
||||
}
|
||||
/* rotate clock-wise = 1. transpose matrix => 2. reverse(matrix[i])
|
||||
|
||||
1 2 3 4 1 5 9 13 13 9 5 1
|
||||
5 6 7 8 => 2 6 10 14 => 14 10 6 2
|
||||
9 10 11 12 3 7 11 15 15 11 7 3
|
||||
13 14 15 16 4 8 12 16 16 12 8 4
|
||||
|
||||
*/
|
||||
|
||||
for i := 0; i < n; i++ {
|
||||
// transpose, i=rows, j=columns
|
||||
// j = i+1, coz diagonal elements didn't change in a square matrix
|
||||
for j := i + 1; j < n; j++ {
|
||||
swap(matrix, i, j)
|
||||
}
|
||||
// reverse each row of the image
|
||||
matrix[i] = reverse(matrix[i])
|
||||
}
|
||||
}
|
||||
|
||||
// swap changes original slice's i,j position
|
||||
func swap(nums [][]int, i, j int) {
|
||||
nums[i][j], nums[j][i] = nums[j][i], nums[i][j]
|
||||
}
|
||||
|
||||
// reverses a row of image, matrix[i]
|
||||
func reverse(nums []int) []int {
|
||||
var lp, rp = 0, len(nums) - 1
|
||||
|
||||
for lp < rp {
|
||||
nums[lp], nums[rp] = nums[rp], nums[lp]
|
||||
lp++
|
||||
rp--
|
||||
}
|
||||
return nums
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -78,5 +78,5 @@ func insert(intervals []Interval, newInterval Interval) []Interval {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0056.Merge-Intervals/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0059.Spiral-Matrix-II/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0058.Length-of-Last-Word/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,77 @@
|
||||
# [58. Length of Last Word](https://leetcode.com/problems/length-of-last-word/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
Given a string `s` consisting of some words separated by some number of spaces, return *the length of the **last** word in the string.*
|
||||
|
||||
A **word** is a maximal substring consisting of non-space characters only.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
```
|
||||
Input: s = "Hello World"
|
||||
Output: 5
|
||||
Explanation: The last word is "World" with length 5.
|
||||
|
||||
```
|
||||
|
||||
**Example 2:**
|
||||
|
||||
```
|
||||
Input: s = " fly me to the moon "
|
||||
Output: 4
|
||||
Explanation: The last word is "moon" with length 4.
|
||||
|
||||
```
|
||||
|
||||
**Example 3:**
|
||||
|
||||
```
|
||||
Input: s = "luffy is still joyboy"
|
||||
Output: 6
|
||||
Explanation: The last word is "joyboy" with length 6.
|
||||
|
||||
```
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- `1 <= s.length <= 104`
|
||||
- `s` consists of only English letters and spaces `' '`.
|
||||
- There will be at least one word in `s`.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个字符串 `s`，由若干单词组成，单词前后用一些空格字符隔开。返回字符串中最后一个单词的长度。**单词** 是指仅由字母组成、不包含任何空格字符的最大子字符串。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 先从后过滤掉空格找到单词尾部，再从尾部向前遍历，找到单词头部，最后两者相减，即为单词的长度。
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
func lengthOfLastWord(s string) int {
|
||||
last := len(s) - 1
|
||||
for last >= 0 && s[last] == ' ' {
|
||||
last--
|
||||
}
|
||||
if last < 0 {
|
||||
return 0
|
||||
}
|
||||
first := last
|
||||
for first >= 0 && s[first] != ' ' {
|
||||
first--
|
||||
}
|
||||
return last - first
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0057.Insert-Interval/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0059.Spiral-Matrix-II/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -96,6 +96,6 @@ func generateMatrix(n int) [][]int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0057.Insert-Interval/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0058.Length-of-Last-Word/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0001~0099/0060.Permutation-Sequence/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -26,7 +26,7 @@ Your algorithm should have a linear runtime complexity. Could you implement it w
|
||||
## 解题思路
|
||||
|
||||
- 题目要求不能使用辅助空间，并且时间复杂度只能是线性的。
|
||||
- 题目为什么要强调有一个数字出现一次，其他的出现两次？我们想到了异或运算的性质：任何一个数字异或它自己都等于0。也就是说，如果我们从头到尾依次异或数组中的每一个数字，那么最终的结果刚好是那个只出现依次的数字，因为那些出现两次的数字全部在异或中抵消掉了。于是最终做法是从头到尾依次异或数组中的每一个数字，那么最终得到的结果就是两个只出现一次的数字的异或结果。因为其他数字都出现了两次，在异或中全部抵消掉了。**利用的性质是 x^x = 0**。
|
||||
- 题目为什么要强调有一个数字出现一次，其他的出现两次？我们想到了异或运算的性质：任何一个数字异或它自己都等于0。也就是说，如果我们从头到尾依次异或数组中的每一个数字，那么最终的结果刚好是那个只出现一次的数字，因为那些出现两次的数字全部在异或中抵消掉了。于是最终做法是从头到尾依次异或数组中的每一个数字，那么最终得到的结果就是两个只出现一次的数字的异或结果。因为其他数字都出现了两次，在异或中全部抵消掉了。**利用的性质是 x^x = 0**。
|
||||
|
||||
|
||||
## 代码
|
||||
|
||||
@ -54,6 +54,52 @@ func findWords(board [][]byte, words []string) []string {
|
||||
return res
|
||||
}
|
||||
|
||||
// these is 79 solution
|
||||
var dir = [][]int{
|
||||
{-1, 0},
|
||||
{0, 1},
|
||||
{1, 0},
|
||||
{0, -1},
|
||||
}
|
||||
|
||||
func exist(board [][]byte, word string) bool {
|
||||
visited := make([][]bool, len(board))
|
||||
for i := 0; i < len(visited); i++ {
|
||||
visited[i] = make([]bool, len(board[0]))
|
||||
}
|
||||
for i, v := range board {
|
||||
for j := range v {
|
||||
if searchWord(board, visited, word, 0, i, j) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func isInBoard(board [][]byte, x, y int) bool {
|
||||
return x >= 0 && x < len(board) && y >= 0 && y < len(board[0])
|
||||
}
|
||||
|
||||
func searchWord(board [][]byte, visited [][]bool, word string, index, x, y int) bool {
|
||||
if index == len(word)-1 {
|
||||
return board[x][y] == word[index]
|
||||
}
|
||||
if board[x][y] == word[index] {
|
||||
visited[x][y] = true
|
||||
for i := 0; i < 4; i++ {
|
||||
nx := x + dir[i][0]
|
||||
ny := y + dir[i][1]
|
||||
if isInBoard(board, nx, ny) && !visited[nx][ny] && searchWord(board, visited, word, index+1, nx, ny) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
visited[x][y] = false
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -116,5 +116,5 @@ func (this *Codec) deserializeHelper() *TreeNode {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0200~0299/0290.Word-Pattern/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0200~0299/0299.Bulls-and-Cows/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
121
website/content/ChapterFour/0200~0299/0299.Bulls-and-Cows.md
Normal file
121
website/content/ChapterFour/0200~0299/0299.Bulls-and-Cows.md
Normal file
@ -0,0 +1,121 @@
|
||||
# [299. Bulls and Cows](https://leetcode.com/problems/bulls-and-cows/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
You are playing the Bulls and Cows game with your friend.
|
||||
|
||||
You write down a secret number and ask your friend to guess what the number is. When your friend makes a guess, you provide a hint with the following info:
|
||||
|
||||
The number of "bulls", which are digits in the guess that are in the correct position.
|
||||
The number of "cows", which are digits in the guess that are in your secret number but are located in the wrong position. Specifically, the non-bull digits in the guess that could be rearranged such that they become bulls.
|
||||
Given the secret number secret and your friend's guess guess, return the hint for your friend's guess.
|
||||
|
||||
The hint should be formatted as "xAyB", where x is the number of bulls and y is the number of cows. Note that both secret and guess may contain duplicate digits.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
```
|
||||
Input: secret = "1807", guess = "7810"
|
||||
Output: "1A3B"
|
||||
Explanation: Bulls are connected with a '|' and cows are underlined:
|
||||
"1807"
|
||||
|
|
||||
"7810"
|
||||
```
|
||||
|
||||
**Example 2:**
|
||||
|
||||
```
|
||||
Input: secret = "1123", guess = "0111"
|
||||
Output: "1A1B"
|
||||
Explanation: Bulls are connected with a '|' and cows are underlined:
|
||||
"1123" "1123"
|
||||
| or |
|
||||
"0111" "0111"
|
||||
Note that only one of the two unmatched 1s is counted as a cow since the non-bull digits can only be rearranged to allow one 1 to be a bull.
|
||||
```
|
||||
|
||||
**Example 3:**
|
||||
|
||||
```
|
||||
Input: secret = "1", guess = "0"
|
||||
Output: "0A0B"
|
||||
```
|
||||
|
||||
**Example 4:**
|
||||
|
||||
```
|
||||
Input: secret = "1", guess = "1"
|
||||
Output: "1A0B"
|
||||
```
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= secret.length, guess.length <= 1000
|
||||
- secret.length == guess.length
|
||||
- secret and guess consist of digits only.
|
||||
|
||||
## 题目大意
|
||||
|
||||
你在和朋友一起玩 猜数字（Bulls and Cows）游戏，该游戏规则如下：
|
||||
|
||||
写出一个秘密数字，并请朋友猜这个数字是多少。朋友每猜测一次，你就会给他一个包含下述信息的提示：
|
||||
|
||||
猜测数字中有多少位属于数字和确切位置都猜对了（称为 "Bulls", 公牛），
|
||||
有多少位属于数字猜对了但是位置不对（称为 "Cows", 奶牛）。也就是说，这次猜测中有多少位非公牛数字可以通过重新排列转换成公牛数字。
|
||||
给你一个秘密数字secret 和朋友猜测的数字guess ，请你返回对朋友这次猜测的提示。
|
||||
|
||||
提示的格式为 "xAyB" ，x 是公牛个数， y 是奶牛个数，A 表示公牛，B表示奶牛。
|
||||
|
||||
请注意秘密数字和朋友猜测的数字都可能含有重复数字。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 计算下标一致并且对应下标的元素一致的个数，即 x
|
||||
- secret 和 guess 分别去除 x 个公牛的元素,剩下 secret 和 guess 求共同的元素个数就是 y
|
||||
- 把 x， y 转换成字符串，分别与 "A" 和 "B" 进行拼接返回结果
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "strconv"
|
||||
|
||||
func getHint(secret string, guess string) string {
|
||||
cntA, cntB := 0, 0
|
||||
mpS := make(map[byte]int)
|
||||
var strG []byte
|
||||
n := len(secret)
|
||||
var ans string
|
||||
for i := 0; i < n; i++ {
|
||||
if secret[i] == guess[i] {
|
||||
cntA++
|
||||
} else {
|
||||
mpS[secret[i]] += 1
|
||||
strG = append(strG, guess[i])
|
||||
}
|
||||
}
|
||||
for _, v := range strG {
|
||||
if _, ok := mpS[v]; ok {
|
||||
if mpS[v] > 1 {
|
||||
mpS[v] -= 1
|
||||
} else {
|
||||
delete(mpS, v)
|
||||
}
|
||||
cntB++
|
||||
}
|
||||
}
|
||||
ans += strconv.Itoa(cntA) + "A" + strconv.Itoa(cntB) + "B"
|
||||
return ans
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -82,6 +82,6 @@ func lengthOfLIS1(nums []int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0303.Range-Sum-Query-Immutable/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0200~0299/0299.Bulls-and-Cows/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0301.Remove-Invalid-Parentheses/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,138 @@
|
||||
# [301. Remove Invalid Parentheses](https://leetcode.com/problems/remove-invalid-parentheses/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
Given a string s that contains parentheses and letters, remove the minimum number of invalid parentheses to make the input string valid.
|
||||
|
||||
Return all the possible results. You may return the answer in any order.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
Input: s = "()())()"
|
||||
Output: ["(())()","()()()"]
|
||||
|
||||
**Example 2:**
|
||||
|
||||
Input: s = "(a)())()"
|
||||
Output: ["(a())()","(a)()()"]
|
||||
|
||||
**Example 3:**
|
||||
|
||||
Input: s = ")("
|
||||
Output: [""]
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= s.length <= 25
|
||||
- s consists of lowercase English letters and parentheses '(' and ')'.
|
||||
- There will be at most 20 parentheses in s.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个由若干括号和字母组成的字符串 s ，删除最小数量的无效括号，使得输入的字符串有效。
|
||||
|
||||
返回所有可能的结果。答案可以按 任意顺序 返回。
|
||||
|
||||
说明:
|
||||
|
||||
- 1 <= s.length <= 25
|
||||
- s 由小写英文字母以及括号 '(' 和 ')' 组成
|
||||
- s 中至多含 20 个括号
|
||||
|
||||
|
||||
## 解题思路
|
||||
|
||||
回溯和剪枝
|
||||
- 计算最大得分数maxScore，合法字符串的长度length，左括号和右括号的移除次数lmoves,rmoves
|
||||
- 加一个左括号的得分加1；加一个右括号的得分减1
|
||||
- 对于一个合法的字符串，左括号等于右括号，得分最终为0；
|
||||
- 搜索过程中出现以下任何一种情况都直接返回
|
||||
- 得分值为负数
|
||||
- 得分大于最大得分数
|
||||
- 得分小于0
|
||||
- lmoves小于0
|
||||
- rmoves小于0
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
var (
|
||||
res []string
|
||||
mp map[string]int
|
||||
n int
|
||||
length int
|
||||
maxScore int
|
||||
str string
|
||||
)
|
||||
|
||||
func removeInvalidParentheses(s string) []string {
|
||||
lmoves, rmoves, lcnt, rcnt := 0, 0, 0, 0
|
||||
for _, v := range s {
|
||||
if v == '(' {
|
||||
lmoves++
|
||||
lcnt++
|
||||
} else if v == ')' {
|
||||
if lmoves != 0 {
|
||||
lmoves--
|
||||
} else {
|
||||
rmoves++
|
||||
}
|
||||
rcnt++
|
||||
}
|
||||
}
|
||||
n = len(s)
|
||||
length = n - lmoves - rmoves
|
||||
res = []string{}
|
||||
mp = make(map[string]int)
|
||||
maxScore = min(lcnt, rcnt)
|
||||
str = s
|
||||
backtrace(0, "", lmoves, rmoves, 0)
|
||||
return res
|
||||
}
|
||||
|
||||
func backtrace(i int, cur string, lmoves int, rmoves int, score int) {
|
||||
if lmoves < 0 || rmoves < 0 || score < 0 || score > maxScore {
|
||||
return
|
||||
}
|
||||
if lmoves == 0 && rmoves == 0 {
|
||||
if len(cur) == length {
|
||||
if _, ok := mp[cur]; !ok {
|
||||
res = append(res, cur)
|
||||
mp[cur] = 1
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
if i == n {
|
||||
return
|
||||
}
|
||||
if str[i] == '(' {
|
||||
backtrace(i+1, cur+string('('), lmoves, rmoves, score+1)
|
||||
backtrace(i+1, cur, lmoves-1, rmoves, score)
|
||||
} else if str[i] == ')' {
|
||||
backtrace(i+1, cur+string(')'), lmoves, rmoves, score-1)
|
||||
backtrace(i+1, cur, lmoves, rmoves-1, score)
|
||||
} else {
|
||||
backtrace(i+1, cur+string(str[i]), lmoves, rmoves, score)
|
||||
}
|
||||
}
|
||||
|
||||
func min(a, b int) int {
|
||||
if a < b {
|
||||
return a
|
||||
}
|
||||
return b
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0303.Range-Sum-Query-Immutable/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -112,6 +112,6 @@ func (ma *NumArray) SumRange(i int, j int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0301.Remove-Invalid-Parentheses/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0304.Range-Sum-Query-2D-Immutable/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -80,5 +80,5 @@ func maxProduct318(words []string) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0322.Coin-Change/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0319.Bulb-Switcher/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
65
website/content/ChapterFour/0300~0399/0319.Bulb-Switcher.md
Normal file
65
website/content/ChapterFour/0300~0399/0319.Bulb-Switcher.md
Normal file
@ -0,0 +1,65 @@
|
||||
# [319. Bulb Switcher](https://leetcode.com/problems/bulb-switcher/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
There are n bulbs that are initially off. You first turn on all the bulbs, then you turn off every second bulb.
|
||||
|
||||
On the third round, you toggle every third bulb (turning on if it's off or turning off if it's on). For the ith round, you toggle every i bulb. For the nth round, you only toggle the last bulb.
|
||||
|
||||
Return the number of bulbs that are on after n rounds.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
Input: n = 3
|
||||
Output: 1
|
||||
Explanation: At first, the three bulbs are [off, off, off].
|
||||
After the first round, the three bulbs are [on, on, on].
|
||||
After the second round, the three bulbs are [on, off, on].
|
||||
After the third round, the three bulbs are [on, off, off].
|
||||
So you should return 1 because there is only one bulb is on.
|
||||
|
||||
**Example 2:**
|
||||
|
||||
Input: n = 0
|
||||
Output: 0
|
||||
|
||||
**Example 3:**
|
||||
|
||||
Input: n = 1
|
||||
Output: 1
|
||||
|
||||
## 题目大意
|
||||
|
||||
初始时有 n 个灯泡处于关闭状态。第一轮，你将会打开所有灯泡。接下来的第二轮，你将会每两个灯泡关闭一个。
|
||||
|
||||
第三轮，你每三个灯泡就切换一个灯泡的开关（即，打开变关闭，关闭变打开）。第 i 轮，你每 i 个灯泡就切换一个灯泡的开关。直到第 n 轮，你只需要切换最后一个灯泡的开关。
|
||||
|
||||
找出并返回 n 轮后有多少个亮着的灯泡。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 计算 1 到 n 中有奇数个约数的个数
|
||||
- 1 到 n 中的某个数 x 有奇数个约数,也即 x 是完全平方数
|
||||
- 计算 1 到 n 中完全平方数的个数 sqrt(n)
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "math"
|
||||
|
||||
func bulbSwitch(n int) int {
|
||||
return int(math.Sqrt(float64(n)))
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0322.Coin-Change/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -63,6 +63,6 @@ func coinChange(coins []int, amount int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0319.Bulb-Switcher/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0324.Wiggle-Sort-II/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -35,7 +35,7 @@ Output: 2->3->6->7->1->5->4->NULL
|
||||
|
||||
## 解题思路
|
||||
|
||||
这道题思路也是一样的，分别把奇数和偶数都放在 2 个链表中，最后首尾拼接就是答案。
|
||||
这道题思路也是一样的，分别把奇数节点和偶数节点都放在 2 个链表中，最后首尾拼接就是答案。
|
||||
|
||||
## 代码
|
||||
|
||||
|
||||
@ -75,5 +75,5 @@ func intersect(nums1 []int, nums2 []int) []int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0352.Data-Stream-as-Disjoint-Intervals/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,115 @@
|
||||
# [352. Data Stream as Disjoint Intervals](https://leetcode.com/problems/data-stream-as-disjoint-intervals/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
Given a data stream input of non-negative integers a1, a2, ..., an, summarize the numbers seen so far as a list of disjoint intervals.
|
||||
|
||||
Implement the SummaryRanges class:
|
||||
|
||||
- SummaryRanges() Initializes the object with an empty stream.
|
||||
- void addNum(int val) Adds the integer val to the stream.
|
||||
- int[][] getIntervals() Returns a summary of the integers in the stream currently as a list of disjoint intervals [starti, endi].
|
||||
|
||||
**Example 1:**
|
||||
|
||||
Input
|
||||
["SummaryRanges", "addNum", "getIntervals", "addNum", "getIntervals", "addNum", "getIntervals", "addNum", "getIntervals", "addNum", "getIntervals"]
|
||||
[[], [1], [], [3], [], [7], [], [2], [], [6], []]
|
||||
Output
|
||||
[null, null, [[1, 1]], null, [[1, 1], [3, 3]], null, [[1, 1], [3, 3], [7, 7]], null, [[1, 3], [7, 7]], null, [[1, 3], [6, 7]]]
|
||||
|
||||
Explanation
|
||||
SummaryRanges summaryRanges = new SummaryRanges();
|
||||
summaryRanges.addNum(1); // arr = [1]
|
||||
summaryRanges.getIntervals(); // return [[1, 1]]
|
||||
summaryRanges.addNum(3); // arr = [1, 3]
|
||||
summaryRanges.getIntervals(); // return [[1, 1], [3, 3]]
|
||||
summaryRanges.addNum(7); // arr = [1, 3, 7]
|
||||
summaryRanges.getIntervals(); // return [[1, 1], [3, 3], [7, 7]]
|
||||
summaryRanges.addNum(2); // arr = [1, 2, 3, 7]
|
||||
summaryRanges.getIntervals(); // return [[1, 3], [7, 7]]
|
||||
summaryRanges.addNum(6); // arr = [1, 2, 3, 6, 7]
|
||||
summaryRanges.getIntervals(); // return [[1, 3], [6, 7]]
|
||||
|
||||
**Constraints**
|
||||
|
||||
- 0 <= val <= 10000
|
||||
- At most 3 * 10000 calls will be made to addNum and getIntervals.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个由非负整数a1, a2, ..., an 组成的数据流输入，请你将到目前为止看到的数字总结为不相交的区间列表。
|
||||
|
||||
实现 SummaryRanges 类：
|
||||
|
||||
- SummaryRanges() 使用一个空数据流初始化对象。
|
||||
- void addNum(int val) 向数据流中加入整数 val 。
|
||||
- int[][] getIntervals() 以不相交区间[starti, endi] 的列表形式返回对数据流中整数的总结
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 使用字典过滤掉重复的数字
|
||||
- 把过滤后的数字放到nums中,并进行排序
|
||||
- 使用nums构建不重复的区间
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
import "sort"
|
||||
|
||||
type SummaryRanges struct {
|
||||
nums []int
|
||||
mp map[int]int
|
||||
}
|
||||
|
||||
func Constructor() SummaryRanges {
|
||||
return SummaryRanges{
|
||||
nums: []int{},
|
||||
mp : map[int]int{},
|
||||
}
|
||||
}
|
||||
|
||||
func (this *SummaryRanges) AddNum(val int) {
|
||||
if _, ok := this.mp[val]; !ok {
|
||||
this.mp[val] = 1
|
||||
this.nums = append(this.nums, val)
|
||||
}
|
||||
sort.Ints(this.nums)
|
||||
}
|
||||
|
||||
func (this *SummaryRanges) GetIntervals() [][]int {
|
||||
n := len(this.nums)
|
||||
var ans [][]int
|
||||
if n == 0 {
|
||||
return ans
|
||||
}
|
||||
if n == 1 {
|
||||
ans = append(ans, []int{this.nums[0], this.nums[0]})
|
||||
return ans
|
||||
}
|
||||
start, end := this.nums[0], this.nums[0]
|
||||
ans = append(ans, []int{start, end})
|
||||
index := 0
|
||||
for i := 1; i < n; i++ {
|
||||
if this.nums[i] == end + 1 {
|
||||
end = this.nums[i]
|
||||
ans[index][1] = end
|
||||
} else {
|
||||
start, end = this.nums[i], this.nums[i]
|
||||
ans = append(ans, []int{start, end})
|
||||
index++
|
||||
}
|
||||
}
|
||||
return ans
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -84,6 +84,6 @@ func maxEnvelopes(envelopes [][]int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0352.Data-Stream-as-Disjoint-Intervals/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -138,5 +138,5 @@ func (p *pq) Pop() interface{} {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0377.Combination-Sum-IV/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0385.Mini-Parser/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0384.Shuffle-an-Array/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,89 @@
|
||||
# [384.Shuffle an Array](https://leetcode.com/problems/shuffle-an-array/)
|
||||
|
||||
## 题目
|
||||
|
||||
Given an integer array nums, design an algorithm to randomly shuffle the array. All permutations of the array should be equally likely as a result of the shuffling.
|
||||
|
||||
Implement the Solution class:
|
||||
|
||||
- Solution(int[] nums) Initializes the object with the integer array nums.
|
||||
- int[] reset() Resets the array to its original configuration and returns it.
|
||||
- int[] shuffle() Returns a random shuffling of the array.
|
||||
|
||||
**Example 1**:
|
||||
|
||||
Input
|
||||
["Solution", "shuffle", "reset", "shuffle"]
|
||||
[[[1, 2, 3]], [], [], []]
|
||||
Output
|
||||
[null, [3, 1, 2], [1, 2, 3], [1, 3, 2]]
|
||||
|
||||
Explanation
|
||||
Solution solution = new Solution([1, 2, 3]);
|
||||
solution.shuffle(); // Shuffle the array [1,2,3] and return its result.
|
||||
// Any permutation of [1,2,3] must be equally likely to be returned.
|
||||
// Example: return [3, 1, 2]
|
||||
solution.reset(); // Resets the array back to its original configuration [1,2,3]. Return [1, 2, 3]
|
||||
solution.shuffle(); // Returns the random shuffling of array [1,2,3]. Example: return [1, 3, 2]
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= nums.length <= 200
|
||||
- -1000000 <= nums[i] <= 1000000
|
||||
- All the elements of nums are unique.
|
||||
- At most 5 * 10000 calls in total will be made to reset and shuffle.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个整数数组 nums ，设计算法来打乱一个没有重复元素的数组。
|
||||
|
||||
实现 Solution class:
|
||||
|
||||
- Solution(int[] nums) 使用整数数组 nums 初始化对象
|
||||
- int[] reset() 重设数组到它的初始状态并返回
|
||||
- int[] shuffle() 返回数组随机打乱后的结果
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 使用 rand.Shuffle 进行数组随机打乱
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "math/rand"
|
||||
|
||||
type Solution struct {
|
||||
nums []int
|
||||
}
|
||||
|
||||
func Constructor(nums []int) Solution {
|
||||
return Solution{
|
||||
nums: nums,
|
||||
}
|
||||
}
|
||||
|
||||
/** Resets the array to its original configuration and return it. */
|
||||
func (this *Solution) Reset() []int {
|
||||
return this.nums
|
||||
}
|
||||
|
||||
/** Returns a random shuffling of the array. */
|
||||
func (this *Solution) Shuffle() []int {
|
||||
arr := make([]int, len(this.nums))
|
||||
copy(arr, this.nums)
|
||||
rand.Shuffle(len(arr), func(i, j int) {
|
||||
arr[i], arr[j] = arr[j], arr[i]
|
||||
})
|
||||
return arr
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0385.Mini-Parser/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -177,6 +177,6 @@ func deserialize(s string) *NestedInteger {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0384.Shuffle-an-Array/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0386.Lexicographical-Numbers/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -51,5 +51,5 @@ func findTheDifference(s string, t string) byte {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0387.First-Unique-Character-in-a-String/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0392.Is-Subsequence/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0391.Perfect-Rectangle/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
121
website/content/ChapterFour/0300~0399/0391.Perfect-Rectangle.md
Normal file
121
website/content/ChapterFour/0300~0399/0391.Perfect-Rectangle.md
Normal file
@ -0,0 +1,121 @@
|
||||
# [391. Perfect Rectangle](https://leetcode.com/problems/perfect-rectangle/)
|
||||
|
||||
## 题目
|
||||
|
||||
Given an array rectangles where rectangles[i] = [xi, yi, ai, bi] represents an axis-aligned rectangle. The bottom-left point of the rectangle is (xi, yi) and the top-right point of it is (ai, bi).
|
||||
|
||||
Return true if all the rectangles together form an exact cover of a rectangular region.
|
||||
|
||||
**Example1:**
|
||||
|
||||
|
||||
|
||||
Input: rectangles = [[1,1,3,3],[3,1,4,2],[3,2,4,4],[1,3,2,4],[2,3,3,4]]
|
||||
Output: true
|
||||
Explanation: All 5 rectangles together form an exact cover of a rectangular region.
|
||||
|
||||
**Example2:**
|
||||
|
||||
|
||||
|
||||
Input: rectangles = [[1,1,2,3],[1,3,2,4],[3,1,4,2],[3,2,4,4]]
|
||||
Output: false
|
||||
Explanation: Because there is a gap between the two rectangular regions.
|
||||
|
||||
**Example3:**
|
||||
|
||||
|
||||
|
||||
Input: rectangles = [[1,1,3,3],[3,1,4,2],[1,3,2,4],[3,2,4,4]]
|
||||
Output: false
|
||||
Explanation: Because there is a gap in the top center.
|
||||
|
||||
**Example4:**
|
||||
|
||||
|
||||
|
||||
Input: rectangles = [[1,1,3,3],[3,1,4,2],[1,3,2,4],[2,2,4,4]]
|
||||
Output: false
|
||||
Explanation: Because two of the rectangles overlap with each other.
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= rectangles.length <= 2 * 10000
|
||||
- rectangles[i].length == 4
|
||||
- -100000 <= xi, yi, ai, bi <= 100000
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个数组 rectangles ，其中 rectangles[i] = [xi, yi, ai, bi] 表示一个坐标轴平行的矩形。这个矩形的左下顶点是 (xi, yi) ，右上顶点是 (ai, bi) 。
|
||||
|
||||
如果所有矩形一起精确覆盖了某个矩形区域，则返回 true ；否则，返回 false 。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 矩形区域的面积等于所有矩形的面积之和并且满足矩形区域四角的顶点只能出现一次，且其余顶点的出现次数只能是两次或四次则返回 true,否则返回 false
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
type point struct {
|
||||
x int
|
||||
y int
|
||||
}
|
||||
|
||||
func isRectangleCover(rectangles [][]int) bool {
|
||||
minX, minY, maxA, maxB := rectangles[0][0], rectangles[0][1], rectangles[0][2], rectangles[0][3]
|
||||
area := 0
|
||||
cnt := make(map[point]int)
|
||||
for _, v := range rectangles {
|
||||
x, y, a, b := v[0], v[1], v[2], v[3]
|
||||
area += (a - x) * (b - y)
|
||||
minX = min(minX, x)
|
||||
minY = min(minY, y)
|
||||
maxA = max(maxA, a)
|
||||
maxB = max(maxB, b)
|
||||
cnt[point{x, y}]++
|
||||
cnt[point{a, b}]++
|
||||
cnt[point{x, b}]++
|
||||
cnt[point{a, y}]++
|
||||
}
|
||||
if area != (maxA - minX) * (maxB - minY) ||
|
||||
cnt[point{minX, minY}] != 1 || cnt[point{maxA, maxB}] != 1 ||
|
||||
cnt[point{minX, maxB}] != 1 || cnt[point{maxA, minY}] != 1 {
|
||||
return false
|
||||
}
|
||||
delete(cnt, point{minX, minY})
|
||||
delete(cnt, point{maxA, maxB})
|
||||
delete(cnt, point{minX, maxB})
|
||||
delete(cnt, point{maxA, minY})
|
||||
for _, v := range cnt {
|
||||
if v != 2 && v != 4 {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func min(a, b int) int {
|
||||
if a < b {
|
||||
return a
|
||||
}
|
||||
return b
|
||||
}
|
||||
|
||||
func max(a, b int) int {
|
||||
if a > b {
|
||||
return a
|
||||
}
|
||||
return b
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0389.Find-the-Difference/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0392.Is-Subsequence/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -82,6 +82,6 @@ func isSubsequence1(s string, t string) bool {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0389.Find-the-Difference/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0391.Perfect-Rectangle/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0300~0399/0393.UTF-8-Validation/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -186,5 +186,5 @@ func convert(gene string) uint32 {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0435.Non-overlapping-Intervals/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0434.Number-of-Segments-in-a-String/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,77 @@
|
||||
# [434. Number of Segments in a String](https://leetcode.com/problems/number-of-segments-in-a-string/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
You are given a string s, return the number of segments in the string.
|
||||
|
||||
A segment is defined to be a contiguous sequence of non-space characters.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
Input: s = "Hello, my name is John"
|
||||
Output: 5
|
||||
Explanation: The five segments are ["Hello,", "my", "name", "is", "John"]
|
||||
|
||||
**Example 2:**
|
||||
|
||||
Input: s = "Hello"
|
||||
Output: 1
|
||||
|
||||
**Example 3:**
|
||||
|
||||
Input: s = "love live! mu'sic forever"
|
||||
Output: 4
|
||||
|
||||
**Example 4:**
|
||||
|
||||
Input: s = ""
|
||||
Output: 0
|
||||
|
||||
**Constraints**
|
||||
|
||||
- 0 <= s.length <= 300
|
||||
- s consists of lower-case and upper-case English letters, digits or one of the following characters "!@#$%^&*()_+-=',.:".
|
||||
- The only space character in s is ' '.
|
||||
|
||||
## 题目大意
|
||||
|
||||
统计字符串中的单词个数，这里的单词指的是连续的不是空格的字符。
|
||||
|
||||
请注意，你可以假定字符串里不包括任何不可打印的字符。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 以空格为分割计算元素个数
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
func countSegments(s string) int {
|
||||
segments := false
|
||||
cnt := 0
|
||||
for _, v := range s {
|
||||
if v == ' ' && segments {
|
||||
segments = false
|
||||
cnt += 1
|
||||
} else if v != ' ' {
|
||||
segments = true
|
||||
}
|
||||
}
|
||||
if segments {
|
||||
cnt++
|
||||
}
|
||||
return cnt
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0435.Non-overlapping-Intervals/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -137,6 +137,6 @@ func eraseOverlapIntervals1(intervals [][]int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0434.Number-of-Segments-in-a-String/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0436.Find-Right-Interval/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -32,6 +32,22 @@ Output: 7 -> 8 -> 0 -> 7
|
||||
|
||||
package leetcode
|
||||
|
||||
/**
|
||||
* Definition for singly-linked list.
|
||||
* type ListNode struct {
|
||||
* Val int
|
||||
* Next *ListNode
|
||||
* }
|
||||
*/
|
||||
package leetcode
|
||||
|
||||
import (
|
||||
"github.com/halfrost/LeetCode-Go/structures"
|
||||
)
|
||||
|
||||
// ListNode define
|
||||
type ListNode = structures.ListNode
|
||||
|
||||
/**
|
||||
* Definition for singly-linked list.
|
||||
* type ListNode struct {
|
||||
@ -93,6 +109,75 @@ func getLength(l *ListNode) int {
|
||||
return count
|
||||
}
|
||||
|
||||
func addTwoNumbers1(l1 *ListNode, l2 *ListNode) *ListNode {
|
||||
reservedL1 := reverseList(l1)
|
||||
reservedL2 := reverseList(l2)
|
||||
|
||||
dummyHead := &ListNode{}
|
||||
head := dummyHead
|
||||
carry := 0
|
||||
for reservedL1 != nil || reservedL2 != nil || carry > 0 {
|
||||
val := carry
|
||||
if reservedL1 != nil {
|
||||
val = reservedL1.Val + val
|
||||
reservedL1 = reservedL1.Next
|
||||
}
|
||||
if reservedL2 != nil {
|
||||
val = reservedL2.Val + val
|
||||
reservedL2 = reservedL2.Next
|
||||
}
|
||||
carry = val / 10
|
||||
head.Next = &ListNode{Val: val % 10}
|
||||
head = head.Next
|
||||
}
|
||||
return reverseList(dummyHead.Next)
|
||||
}
|
||||
|
||||
func reverseList(head *ListNode) *ListNode {
|
||||
var prev *ListNode
|
||||
for head != nil {
|
||||
tmp := head.Next
|
||||
head.Next = prev
|
||||
|
||||
prev = head
|
||||
head = tmp
|
||||
}
|
||||
return prev
|
||||
}
|
||||
|
||||
func addTwoNumbers(l1 *ListNode, l2 *ListNode) *ListNode {
|
||||
stack1 := pushStack(l1)
|
||||
stack2 := pushStack(l2)
|
||||
|
||||
dummyHead := &ListNode{}
|
||||
head := dummyHead
|
||||
carry := 0
|
||||
for len(stack1) > 0 || len(stack2) > 0 || carry > 0 {
|
||||
val := carry
|
||||
if len(stack1) > 0 {
|
||||
val = val + stack1[len(stack1)-1]
|
||||
stack1 = stack1[:len(stack1)-1]
|
||||
}
|
||||
if len(stack2) > 0 {
|
||||
val = val + stack2[len(stack2)-1]
|
||||
stack2 = stack2[:len(stack2)-1]
|
||||
}
|
||||
carry = val / 10
|
||||
tmp := head.Next
|
||||
head.Next = &ListNode{Val: val % 10, Next: tmp}
|
||||
}
|
||||
return dummyHead.Next
|
||||
}
|
||||
|
||||
func pushStack(l *ListNode) []int {
|
||||
var stack []int
|
||||
for l != nil {
|
||||
stack = append(stack, l.Val)
|
||||
l = l.Next
|
||||
}
|
||||
return stack
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -107,5 +107,5 @@ func getNextIndex(nums []int, index int) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0456.132-Pattern/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0460.LFU-Cache/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0458.Poor-Pigs/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
84
website/content/ChapterFour/0400~0499/0458.Poor-Pigs.md
Normal file
84
website/content/ChapterFour/0400~0499/0458.Poor-Pigs.md
Normal file
@ -0,0 +1,84 @@
|
||||
# [458. Poor Pigs](https://leetcode.com/problems/poor-pigs/)
|
||||
|
||||
## 题目
|
||||
|
||||
There are buckets buckets of liquid, where exactly one of the buckets is poisonous. To figure out which one is poisonous, you feed some number of (poor) pigs the liquid to see whether they will die or not. Unfortunately, you only have minutesToTest minutes to determine which bucket is poisonous.
|
||||
|
||||
You can feed the pigs according to these steps:
|
||||
|
||||
- Choose some live pigs to feed.
|
||||
- For each pig, choose which buckets to feed it. The pig will consume all the chosen buckets simultaneously and will take no time.
|
||||
- Wait for minutesToDie minutes. You may not feed any other pigs during this time.
|
||||
- After minutesToDie minutes have passed, any pigs that have been fed the poisonous bucket will die, and all others will survive.
|
||||
- Repeat this process until you run out of time.
|
||||
|
||||
Given buckets, minutesToDie, and minutesToTest, return the minimum number of pigs needed to figure out which bucket is poisonous within the allotted time.
|
||||
|
||||
**Example 1**:
|
||||
|
||||
Input: buckets = 1000, minutesToDie = 15, minutesToTest = 60
|
||||
Output: 5
|
||||
|
||||
**Example 2**:
|
||||
|
||||
Input: buckets = 4, minutesToDie = 15, minutesToTest = 15
|
||||
Output: 2
|
||||
|
||||
**Example 3**:
|
||||
|
||||
Input: buckets = 4, minutesToDie = 15, minutesToTest = 30
|
||||
Output: 2
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= buckets <= 1000
|
||||
- 1 <= minutesToDie <= minutesToTest <= 100
|
||||
|
||||
## 题目大意
|
||||
|
||||
有 buckets 桶液体，其中 正好 有一桶含有毒药，其余装的都是水。它们从外观看起来都一样。为了弄清楚哪只水桶含有毒药，你可以喂一些猪喝，通过观察猪是否会死进行判断。不幸的是，你只有 minutesToTest 分钟时间来确定哪桶液体是有毒的。
|
||||
|
||||
喂猪的规则如下：
|
||||
|
||||
- 选择若干活猪进行喂养
|
||||
- 可以允许小猪同时饮用任意数量的桶中的水，并且该过程不需要时间。
|
||||
- 小猪喝完水后，必须有 minutesToDie 分钟的冷却时间。在这段时间里，你只能观察，而不允许继续喂猪。
|
||||
- 过了 minutesToDie 分钟后，所有喝到毒药的猪都会死去，其他所有猪都会活下来。
|
||||
- 重复这一过程，直到时间用完。
|
||||
|
||||
给你桶的数目 buckets ，minutesToDie 和 minutesToTest ，返回在规定时间内判断哪个桶有毒所需的 最小 猪数。
|
||||
|
||||
## 解题思路
|
||||
|
||||
使用数学方法,以 minutesToDie=15, minutesToTest=60, 1 只小猪为例,可以测试 5 只桶
|
||||
|
||||
- 0-15 小猪吃第一个桶中的液体,如果死去，则第一个桶有毒,否则继续测试
|
||||
- 15-30 小猪吃第二个桶中的液体，如果死去，则第二个桶有毒,否则继续测试
|
||||
- 30-45 小猪吃第三个桶中的液体，如果死去，则第三个桶有毒,否则继续测试
|
||||
- 45-60 小猪吃第四个桶中的液体，如果死去，则第四个桶有毒
|
||||
- 如果最后小猪没有死去，则第五个桶有毒
|
||||
|
||||
所以一只小猪在 minutesToDie 和 minutesToTest 时间一定的情况下可以最多判断 base = minutesToTest / minutesToDie + 1 个桶
|
||||
|
||||
假设小猪的数量是 num,那么 pow(base, num) >= buckets,根据对数运算规则，两边分别取对数得到: num >= Log10(buckets) / Log10(base)
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "math"
|
||||
|
||||
func poorPigs(buckets int, minutesToDie int, minutesToTest int) int {
|
||||
base := minutesToTest/minutesToDie + 1
|
||||
return int(math.Ceil(math.Log10(float64(buckets)) / math.Log10(float64(base))))
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0457.Circular-Array-Loop/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0460.LFU-Cache/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -144,6 +144,6 @@ func (this *LFUCache) Put(key int, value int) {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0457.Circular-Array-Loop/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0458.Poor-Pigs/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0461.Hamming-Distance/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -62,5 +62,5 @@ func findMaxConsecutiveOnes(nums []int) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0483.Smallest-Good-Base/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0491.Increasing-Subsequences/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0488.Zuma-Game/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
148
website/content/ChapterFour/0400~0499/0488.Zuma-Game.md
Normal file
148
website/content/ChapterFour/0400~0499/0488.Zuma-Game.md
Normal file
@ -0,0 +1,148 @@
|
||||
# [488. Zuma Game](https://leetcode.com/problems/zuma-game/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
You are playing a variation of the game Zuma.
|
||||
|
||||
In this variation of Zuma, there is a single row of colored balls on a board, where each ball can be colored red 'R', yellow 'Y', blue 'B', green 'G', or white 'W'. You also have several colored balls in your hand.
|
||||
|
||||
Your goal is to clear all of the balls from the board. On each turn:
|
||||
|
||||
Pick any ball from your hand and insert it in between two balls in the row or on either end of the row.
|
||||
If there is a group of three or more consecutive balls of the same color, remove the group of balls from the board.
|
||||
If this removal causes more groups of three or more of the same color to form, then continue removing each group until there are none left.
|
||||
If there are no more balls on the board, then you win the game.
|
||||
Repeat this process until you either win or do not have any more balls in your hand.
|
||||
Given a string board, representing the row of balls on the board, and a string hand, representing the balls in your hand, return the minimum number of balls you have to insert to clear all the balls from the board. If you cannot clear all the balls from the board using the balls in your hand, return -1.
|
||||
|
||||
**Example 1**:
|
||||
|
||||
```
|
||||
Input: board = "WRRBBW", hand = "RB"
|
||||
Output: -1
|
||||
Explanation: It is impossible to clear all the balls. The best you can do is:
|
||||
- Insert 'R' so the board becomes WRRRBBW. WRRRBBW -> WBBW.
|
||||
- Insert 'B' so the board becomes WBBBW. WBBBW -> WW.
|
||||
There are still balls remaining on the board, and you are out of balls to insert.
|
||||
```
|
||||
|
||||
**Example 2**:
|
||||
```
|
||||
Input: board = "WWRRBBWW", hand = "WRBRW"
|
||||
Output: 2
|
||||
Explanation: To make the board empty:
|
||||
- Insert 'R' so the board becomes WWRRRBBWW. WWRRRBBWW -> WWBBWW.
|
||||
- Insert 'B' so the board becomes WWBBBWW. WWBBBWW -> WWWW -> empty.
|
||||
2 balls from your hand were needed to clear the board.
|
||||
```
|
||||
|
||||
**Example 3**:
|
||||
```
|
||||
Input: board = "G", hand = "GGGGG"
|
||||
Output: 2
|
||||
Explanation: To make the board empty:
|
||||
- Insert 'G' so the board becomes GG.
|
||||
- Insert 'G' so the board becomes GGG. GGG -> empty.
|
||||
2 balls from your hand were needed to clear the board.
|
||||
```
|
||||
|
||||
**Example 4**:
|
||||
```
|
||||
Input: board = "RBYYBBRRB", hand = "YRBGB"
|
||||
Output: 3
|
||||
Explanation: To make the board empty:
|
||||
- Insert 'Y' so the board becomes RBYYYBBRRB. RBYYYBBRRB -> RBBBRRB -> RRRB -> B.
|
||||
- Insert 'B' so the board becomes BB.
|
||||
- Insert 'B' so the board becomes BBB. BBB -> empty.
|
||||
3 balls from your hand were needed to clear the board.
|
||||
```
|
||||
|
||||
**Constraints**:
|
||||
|
||||
- 1 <= board.length <= 16
|
||||
- 1 <= hand.length <= 5
|
||||
- board and hand consist of the characters 'R', 'Y', 'B', 'G', and 'W'.
|
||||
- The initial row of balls on the board will not have any groups of three or more consecutive balls of the same color.
|
||||
|
||||
## 题目大意
|
||||
|
||||
你正在参与祖玛游戏的一个变种。
|
||||
|
||||
在这个祖玛游戏变体中，桌面上有 一排 彩球，每个球的颜色可能是：红色 'R'、黄色 'Y'、蓝色 'B'、绿色 'G' 或白色 'W' 。你的手中也有一些彩球。
|
||||
|
||||
你的目标是 清空 桌面上所有的球。每一回合：
|
||||
|
||||
从你手上的彩球中选出 任意一颗 ，然后将其插入桌面上那一排球中：两球之间或这一排球的任一端。
|
||||
接着，如果有出现 三个或者三个以上 且 颜色相同 的球相连的话，就把它们移除掉。
|
||||
如果这种移除操作同样导致出现三个或者三个以上且颜色相同的球相连，则可以继续移除这些球，直到不再满足移除条件。
|
||||
如果桌面上所有球都被移除，则认为你赢得本场游戏。
|
||||
重复这个过程，直到你赢了游戏或者手中没有更多的球。
|
||||
给你一个字符串 board ，表示桌面上最开始的那排球。另给你一个字符串 hand ，表示手里的彩球。请你按上述操作步骤移除掉桌上所有球，计算并返回所需的 最少 球数。如果不能移除桌上所有的球，返回 -1 。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 使用广度优先搜索和剪枝
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
func findMinStep(board string, hand string) int {
|
||||
q := [][]string{{board, hand}}
|
||||
mp := make(map[string]bool)
|
||||
minStep := 0
|
||||
for len(q) > 0 {
|
||||
length := len(q)
|
||||
minStep++
|
||||
for length > 0 {
|
||||
length--
|
||||
cur := q[0]
|
||||
q = q[1:]
|
||||
curB, curH := cur[0], cur[1]
|
||||
for i := 0; i < len(curB); i++ {
|
||||
for j := 0; j < len(curH); j++ {
|
||||
curB2 := del3(curB[0:i] + string(curH[j]) + curB[i:])
|
||||
curH2 := curH[0:j] + curH[j+1:]
|
||||
if len(curB2) == 0 {
|
||||
return minStep
|
||||
}
|
||||
if _, ok := mp[curB2+curH2]; ok {
|
||||
continue
|
||||
}
|
||||
mp[curB2+curH2] = true
|
||||
q = append(q, []string{curB2, curH2})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
func del3(str string) string {
|
||||
cnt := 1
|
||||
for i := 1; i < len(str); i++ {
|
||||
if str[i] == str[i-1] {
|
||||
cnt++
|
||||
} else {
|
||||
if cnt >= 3 {
|
||||
return del3(str[0:i-cnt] + str[i:])
|
||||
}
|
||||
cnt = 1
|
||||
}
|
||||
}
|
||||
if cnt >= 3 {
|
||||
return str[0 : len(str)-cnt]
|
||||
}
|
||||
return str
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0485.Max-Consecutive-Ones/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0491.Increasing-Subsequences/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -86,6 +86,6 @@ func generateIncSubsets(nums []int, current int, c []int, res *[][]int) {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0485.Max-Consecutive-Ones/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0493.Reverse-Pairs/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0488.Zuma-Game/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0492.Construct-the-Rectangle/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,79 @@
|
||||
# [492. Construct the Rectangle](https://leetcode.com/problems/construct-the-rectangle/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
A web developer needs to know how to design a web page's size.
|
||||
So, given a specific rectangular web page’s area, your job by now is to design a rectangular web page,
|
||||
whose length L and width W satisfy the following requirements:
|
||||
|
||||
The area of the rectangular web page you designed must equal to the given target area.
|
||||
The width W should not be larger than the length L, which means L >= W.
|
||||
The difference between length L and width W should be as small as possible.
|
||||
Return an array [L, W] where L and W are the length and width of the web page you designed in sequence.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
Input: area = 4
|
||||
Output: [2,2]
|
||||
Explanation: The target area is 4, and all the possible ways to construct it are [1,4], [2,2], [4,1].
|
||||
But according to requirement 2, [1,4] is illegal; according to requirement 3, [4,1] is not optimal compared to [2,2]. So the length L is 2, and the width W is 2.
|
||||
|
||||
**Example 2:**
|
||||
|
||||
Input: area = 37
|
||||
Output: [37,1]
|
||||
|
||||
**Example 3:**
|
||||
|
||||
Input: area = 122122
|
||||
Output: [427,286]
|
||||
|
||||
**Constraints**
|
||||
|
||||
- 1 <= area <= 10000000
|
||||
|
||||
## 题目大意
|
||||
|
||||
作为一位 web 开发者， 懂得怎样去规划一个页面的尺寸是很重要的。 现给定一个具体的矩形页面面积，你的任务是设计一个长度为 L 和宽度为 W 且满足以下要求的矩形的页面。要求：
|
||||
|
||||
1. 你设计的矩形页面必须等于给定的目标面积。
|
||||
2. 宽度 W 不应大于长度 L，换言之，要求 L >= W 。
|
||||
3. 长度 L 和宽度 W 之间的差距应当尽可能小。
|
||||
|
||||
你需要按顺序输出你设计的页面的长度 L 和宽度 W。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 令 W 等于根号 area
|
||||
- 在 W 大于等于 1 的情况下,判断 area%W 是否等于 0,如果不相等 W 就减 1 继续循环,如果相等就返回 [area/W, W]
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "math"
|
||||
|
||||
func constructRectangle(area int) []int {
|
||||
ans := make([]int, 2)
|
||||
W := int(math.Sqrt(float64(area)))
|
||||
for W >= 1 {
|
||||
if area%W == 0 {
|
||||
ans[0], ans[1] = area/W, W
|
||||
break
|
||||
}
|
||||
W -= 1
|
||||
}
|
||||
return ans
|
||||
}
|
||||
|
||||
``
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0491.Increasing-Subsequences/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0493.Reverse-Pairs/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -158,6 +158,6 @@ func reversePairs2(nums []int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0491.Increasing-Subsequences/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0492.Construct-the-Rectangle/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0494.Target-Sum/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -111,5 +111,5 @@ func dfsFindTargetSumWays(nums []int, index int, curSum int, S int, res *int, su
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0493.Reverse-Pairs/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0496.Next-Greater-Element-I/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0495.Teemo-Attacking/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,92 @@
|
||||
# [495. Teemo Attacking](https://leetcode.com/problems/teemo-attacking/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
Our hero Teemo is attacking an enemy Ashe with poison attacks! When Teemo attacks Ashe, Ashe gets poisoned for a exactly duration seconds.
|
||||
|
||||
More formally, an attack at second t will mean Ashe is poisoned during the inclusive time interval [t, t + duration - 1].
|
||||
|
||||
If Teemo attacks again before the poison effect ends, the timer for it is reset, and the poison effect will end duration seconds after the new attack.
|
||||
|
||||
You are given a non-decreasing integer array timeSeries, where timeSeries[i] denotes that Teemo attacks Ashe at second timeSeries[i], and an integer duration.
|
||||
|
||||
Return the total number of seconds that Ashe is poisoned.
|
||||
|
||||
**Example 1**:
|
||||
```
|
||||
Input: timeSeries = [1,4], duration = 2
|
||||
Output: 4
|
||||
Explanation: Teemo's attacks on Ashe go as follows:
|
||||
- At second 1, Teemo attacks, and Ashe is poisoned for seconds 1 and 2.
|
||||
- At second 4, Teemo attacks, and Ashe is poisoned for seconds 4 and 5.
|
||||
Ashe is poisoned for seconds 1, 2, 4, and 5, which is 4 seconds in total.
|
||||
```
|
||||
|
||||
**Example 2**:
|
||||
```
|
||||
Input: timeSeries = [1,2], duration = 2
|
||||
Output: 3
|
||||
Explanation: Teemo's attacks on Ashe go as follows:
|
||||
- At second 1, Teemo attacks, and Ashe is poisoned for seconds 1 and 2.
|
||||
- At second 2 however, Teemo attacks again and resets the poison timer. Ashe is poisoned for seconds 2 and 3.
|
||||
Ashe is poisoned for seconds 1, 2, and 3, which is 3 seconds in total.
|
||||
```
|
||||
|
||||
**Constraints**:
|
||||
|
||||
- 1 <= timeSeries.length <= 10000
|
||||
- 0 <= timeSeries[i], duration <= 10000000
|
||||
- timeSeries is sorted in non-decreasing order.
|
||||
|
||||
## 题目大意
|
||||
|
||||
在《英雄联盟》的世界中，有一个叫 “提莫” 的英雄。他的攻击可以让敌方英雄艾希（编者注：寒冰射手）进入中毒状态。
|
||||
|
||||
当提莫攻击艾希，艾希的中毒状态正好持续duration 秒。
|
||||
|
||||
正式地讲，提莫在t发起发起攻击意味着艾希在时间区间 [t, t + duration - 1]（含 t 和 t + duration - 1）处于中毒状态。
|
||||
|
||||
如果提莫在中毒影响结束前再次攻击，中毒状态计时器将会重置，在新的攻击之后，中毒影响将会在duration秒后结束。
|
||||
|
||||
给你一个非递减的整数数组timeSeries，其中timeSeries[i]表示提莫在timeSeries[i]秒时对艾希发起攻击，以及一个表示中毒持续时间的整数duration 。
|
||||
|
||||
返回艾希处于中毒状态的总秒数。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- i 从 1 开始计数，令 t 等于 timeSeries[i - 1]
|
||||
- 比较 end(t + duration - 1) 和 timeSeries[i] 的大小，
|
||||
- 如果 end 小于 timeSeries[i],ans+=duration
|
||||
- 否则 ans += timeSeries[i] - t
|
||||
- ans += duration 并返回 ans
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
func findPoisonedDuration(timeSeries []int, duration int) int {
|
||||
var ans int
|
||||
for i := 1; i < len(timeSeries); i++ {
|
||||
t := timeSeries[i-1]
|
||||
end := t + duration - 1
|
||||
if end < timeSeries[i] {
|
||||
ans += duration
|
||||
} else {
|
||||
ans += timeSeries[i] - t
|
||||
}
|
||||
}
|
||||
ans += duration
|
||||
return ans
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0494.Target-Sum/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0496.Next-Greater-Element-I/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -82,6 +82,6 @@ func nextGreaterElement(nums1 []int, nums2 []int) []int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0494.Target-Sum/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0495.Teemo-Attacking/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0400~0499/0497.Random-Point-in-Non-overlapping-Rectangles/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -37,6 +37,13 @@ The total number of elements of the given matrix will not exceed 10,000.
|
||||
|
||||
- 给出一个二维数组，要求按照如图的方式遍历整个数组。
|
||||
- 这一题用模拟的方式就可以解出来。需要注意的是边界条件：比如二维数组为空，二维数组退化为一行或者一列，退化为一个元素。具体例子见测试用例。
|
||||
- 解题关键是在判断下一个位置，将矩阵想像成一个X,Y坐标轴。那么可分为以下几种情况，
|
||||
1、斜角向右上遍历时，
|
||||
当右上角在坐标轴内， 正常计算 即， x+1(X轴向右移动)， y-1(Y轴向上移动)
|
||||
当右上角在坐标轴外，那么当前位置只能在 第一行X坐标轴 ，或者 最后一列Y坐标轴 ， 即判断该两种情况下<E586B5>应该X坐标往右，或者 Y坐标往上
|
||||
2、同理 斜角向下遍历时
|
||||
当左下角在坐标轴内，正常计算 即， x-1(X轴向右移动)， y+1(Y轴向下移动)
|
||||
当左下角在坐标轴外，那么当前位置只能在 第一列Y坐标轴，或者 最后一行X坐标轴， 即判断该两种情况下<E586B5>应该X坐标往左，或者 Y坐标往下
|
||||
|
||||
|
||||
## 代码
|
||||
|
||||
@ -76,5 +76,5 @@ func change(amount int, coins []int) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0520.Detect-Capital/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
75
website/content/ChapterFour/0500~0599/0520.Detect-Capital.md
Normal file
75
website/content/ChapterFour/0500~0599/0520.Detect-Capital.md
Normal file
@ -0,0 +1,75 @@
|
||||
# [520. Detect Capital](https://leetcode.com/problems/detect-capital/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
We define the usage of capitals in a word to be right when one of the following cases holds:
|
||||
|
||||
All letters in this word are capitals, like "USA".
|
||||
|
||||
All letters in this word are not capitals, like "leetcode".
|
||||
|
||||
Only the first letter in this word is capital, like "Google".
|
||||
|
||||
Given a string word, return true if the usage of capitals in it is right.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
```
|
||||
Input: word = "USA"
|
||||
Output: true
|
||||
```
|
||||
|
||||
**Example 2:**
|
||||
|
||||
```
|
||||
Input: word = "FlaG"
|
||||
Output: false
|
||||
```
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= word.length <= 100
|
||||
- word consists of lowercase and uppercase English letters.
|
||||
|
||||
## 题目大意
|
||||
|
||||
我们定义，在以下情况时，单词的大写用法是正确的：
|
||||
|
||||
全部字母都是大写，比如 "USA" 。
|
||||
单词中所有字母都不是大写，比如 "leetcode" 。
|
||||
如果单词不只含有一个字母，只有首字母大写，比如"Google" 。
|
||||
|
||||
给你一个字符串 word 。如果大写用法正确，返回 true ；否则，返回 false 。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 把 word 分别转换为全部小写 wLower，全部大写 wUpper，首字母大写的字符串 wCaptial
|
||||
- 判断 word 是否等于 wLower, wUpper, wCaptial 中的一个，如果是返回 true，否则返回 false
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import "strings"
|
||||
|
||||
func detectCapitalUse(word string) bool {
|
||||
wLower := strings.ToLower(word)
|
||||
wUpper := strings.ToUpper(word)
|
||||
wCaptial := strings.ToUpper(string(word[0])) + strings.ToLower(string(word[1:]))
|
||||
if wCaptial == word || wLower == word || wUpper == word {
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0518.Coin-Change-2/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -77,6 +77,6 @@ func checkSubarraySum(nums []int, k int) bool {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0518.Coin-Change-2/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0520.Detect-Capital/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -53,6 +53,18 @@ func reverseStr(s string, k int) string {
|
||||
return s
|
||||
}
|
||||
|
||||
func revers(s string) string {
|
||||
bytes := []byte(s)
|
||||
i, j := 0, len(bytes)-1
|
||||
for i < j {
|
||||
bytes[i], bytes[j] = bytes[j], bytes[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
return string(bytes)
|
||||
}
|
||||
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -114,5 +114,5 @@ func dfs547(M [][]int, cur int, visited []bool) {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0543.Diameter-of-Binary-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0554.Brick-Wall/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0551.Student-Attendance-Record-I/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,93 @@
|
||||
# [551. Student Attendance Record I](https://leetcode.com/problems/student-attendance-record-i/)
|
||||
|
||||
## 题目
|
||||
|
||||
You are given a string `s` representing an attendance record for a student where each character signifies whether the student was absent, late, or present on that day. The record only contains the following three characters:
|
||||
|
||||
- `'A'`: Absent.
|
||||
- `'L'`: Late.
|
||||
- `'P'`: Present.
|
||||
|
||||
The student is eligible for an attendance award if they meet **both** of the following criteria:
|
||||
|
||||
- The student was absent (`'A'`) for **strictly** fewer than 2 days **total**.
|
||||
- The student was **never** late (`'L'`) for 3 or more **consecutive** days.
|
||||
|
||||
Return `true` *if the student is eligible for an attendance award, or* `false` *otherwise*.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
```
|
||||
Input: s = "PPALLP"
|
||||
Output: true
|
||||
Explanation: The student has fewer than 2 absences and was never late 3 or more consecutive days.
|
||||
|
||||
```
|
||||
|
||||
**Example 2:**
|
||||
|
||||
```
|
||||
Input: s = "PPALLL"
|
||||
Output: false
|
||||
Explanation: The student was late 3 consecutive days in the last 3 days, so is not eligible for the award.
|
||||
|
||||
```
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- `1 <= s.length <= 1000`
|
||||
- `s[i]` is either `'A'`, `'L'`, or `'P'`.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你一个字符串 s 表示一个学生的出勤记录，其中的每个字符用来标记当天的出勤情况（缺勤、迟到、到场）。记录中只含下面三种字符：
|
||||
|
||||
- 'A'：Absent，缺勤
|
||||
- 'L'：Late，迟到
|
||||
- 'P'：Present，到场
|
||||
|
||||
如果学生能够 同时 满足下面两个条件，则可以获得出勤奖励：
|
||||
|
||||
- 按 总出勤 计，学生缺勤（'A'）严格 少于两天。
|
||||
- 学生 不会 存在 连续 3 天或 连续 3 天以上的迟到（'L'）记录。
|
||||
|
||||
如果学生可以获得出勤奖励，返回 true ；否则，返回 false 。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 遍历字符串 s 求出 'A' 的总数量和连续 'L' 的最大数量。
|
||||
- 比较 'A' 的数量是否小于 2 并且 'L' 的连续最大数量是否小于 3。
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
func checkRecord(s string) bool {
|
||||
numsA, maxL, numsL := 0, 0, 0
|
||||
for _, v := range s {
|
||||
if v == 'L' {
|
||||
numsL++
|
||||
} else {
|
||||
if numsL > maxL {
|
||||
maxL = numsL
|
||||
}
|
||||
numsL = 0
|
||||
if v == 'A' {
|
||||
numsA++
|
||||
}
|
||||
}
|
||||
}
|
||||
if numsL > maxL {
|
||||
maxL = numsL
|
||||
}
|
||||
return numsA < 2 && maxL < 3
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0547.Number-of-Provinces/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0554.Brick-Wall/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -70,6 +70,6 @@ func leastBricks(wall [][]int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0547.Number-of-Provinces/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0551.Student-Attendance-Record-I/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -60,5 +60,5 @@ func revers(s string) string {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0554.Brick-Wall/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0561.Array-Partition-I/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0559.Maximum-Depth-of-N-ary-Tree/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,85 @@
|
||||
# [559. Maximum Depth of N-ary Tree](https://leetcode.com/problems/maximum-depth-of-n-ary-tree/)
|
||||
|
||||
## 题目
|
||||
|
||||
Given a n-ary tree, find its maximum depth.
|
||||
|
||||
The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.
|
||||
|
||||
Nary-Tree input serialization is represented in their level order traversal, each group of children is separated by the null value (See examples).
|
||||
|
||||
**Example 1**:
|
||||
|
||||
|
||||
|
||||
Input: root = [1,null,3,2,4,null,5,6]
|
||||
Output: 3
|
||||
|
||||
**Example 2**:
|
||||
|
||||
|
||||
|
||||
Input: root = [1,null,2,3,4,5,null,null,6,7,null,8,null,9,10,null,null,11,null,12,null,13,null,null,14]
|
||||
Output: 5
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- The total number of nodes is in the range [0, 10000].
|
||||
- The depth of the n-ary tree is less than or equal to 1000.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给定一个 N 叉树，找到其最大深度。
|
||||
|
||||
最大深度是指从根节点到最远叶子节点的最长路径上的节点总数。
|
||||
|
||||
N 叉树输入按层序遍历序列化表示，每组子节点由空值分隔（请参见示例）。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 使用广度优先遍历
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
type Node struct {
|
||||
Val int
|
||||
Children []*Node
|
||||
}
|
||||
|
||||
func maxDepth(root *Node) int {
|
||||
if root == nil {
|
||||
return 0
|
||||
}
|
||||
return 1 + bfs(root)
|
||||
}
|
||||
|
||||
func bfs(root *Node) int {
|
||||
var q []*Node
|
||||
var depth int
|
||||
q = append(q, root.Children...)
|
||||
for len(q) != 0 {
|
||||
depth++
|
||||
length := len(q)
|
||||
for length != 0 {
|
||||
ele := q[0]
|
||||
q = q[1:]
|
||||
length--
|
||||
if ele != nil && len(ele.Children) != 0 {
|
||||
q = append(q, ele.Children...)
|
||||
}
|
||||
}
|
||||
}
|
||||
return depth
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0561.Array-Partition-I/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -60,6 +60,6 @@ func arrayPairSum(nums []int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0559.Maximum-Depth-of-N-ary-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0500~0599/0563.Binary-Tree-Tilt/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -148,5 +148,5 @@ func discretization(positions [][]int) map[int]int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0600~0699/0697.Degree-of-an-Array/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0700~0799/0703.Kth-Largest-Element-in-a-Stream/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0700~0799/0700.Search-in-a-Binary-Search-Tree/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,80 @@
|
||||
# [700. Search in a Binary Search Tree](https://leetcode.com/problems/search-in-a-binary-search-tree/)
|
||||
|
||||
## 题目
|
||||
|
||||
You are given the root of a binary search tree (BST) and an integer val.
|
||||
|
||||
Find the node in the BST that the node's value equals val and return the subtree rooted with that node. If such a node does not exist, return null.
|
||||
|
||||
**Example 1**:
|
||||
|
||||
|
||||
|
||||
Input: root = [4,2,7,1,3], val = 2
|
||||
Output: [2,1,3]
|
||||
|
||||
**Example 2**:
|
||||
|
||||
|
||||
|
||||
Input: root = [4,2,7,1,3], val = 5
|
||||
Output: []
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- The number of nodes in the tree is in the range [1, 5000].
|
||||
- 1 <= Node.val <= 10000000
|
||||
- root is a binary search tree.
|
||||
- 1 <= val <= 10000000
|
||||
|
||||
## 题目大意
|
||||
|
||||
给定二叉搜索树（BST）的根节点和一个值。 你需要在BST中找到节点值等于给定值的节点。 返回以该节点为根的子树。 如果节点不存在，则返回 NULL。
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 根据二叉搜索树的性质(根节点的值大于左子树所有节点的值，小于右子树所有节点的值),进行递归求解
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
import (
|
||||
"github.com/halfrost/LeetCode-Go/structures"
|
||||
)
|
||||
|
||||
// TreeNode define
|
||||
type TreeNode = structures.TreeNode
|
||||
|
||||
/**
|
||||
* Definition for a binary tree node.
|
||||
* type TreeNode struct {
|
||||
* Val int
|
||||
* Left *TreeNode
|
||||
* Right *TreeNode
|
||||
* }
|
||||
*/
|
||||
|
||||
func searchBST(root *TreeNode, val int) *TreeNode {
|
||||
if root == nil {
|
||||
return nil
|
||||
}
|
||||
if root.Val == val {
|
||||
return root
|
||||
} else if root.Val < val {
|
||||
return searchBST(root.Right, val)
|
||||
} else {
|
||||
return searchBST(root.Left, val)
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0600~0699/0699.Falling-Squares/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0700~0799/0703.Kth-Largest-Element-in-a-Stream/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -95,6 +95,6 @@ func (kl *KthLargest) Add(val int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0600~0699/0699.Falling-Squares/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0700~0799/0700.Search-in-a-Binary-Search-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0700~0799/0704.Binary-Search/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -105,5 +105,5 @@ func scoreOfParentheses(S string) int {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0853.Car-Fleet/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0859.Buddy-Strings/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
94
website/content/ChapterFour/0800~0899/0859.Buddy-Strings.md
Normal file
94
website/content/ChapterFour/0800~0899/0859.Buddy-Strings.md
Normal file
@ -0,0 +1,94 @@
|
||||
# [859. Buddy Strings](https://leetcode.com/problems/buddy-strings/)
|
||||
|
||||
## 题目
|
||||
|
||||
Given two strings s and goal, return true if you can swap two letters in s so the result is equal to goal, otherwise, return false.
|
||||
|
||||
Swapping letters is defined as taking two indices i and j (0-indexed) such that i != j and swapping the characters at s[i] and s[j].
|
||||
|
||||
For example, swapping at indices 0 and 2 in "abcd" results in "cbad".
|
||||
|
||||
**Example 1**:
|
||||
|
||||
Input: s = "ab", goal = "ba"
|
||||
Output: true
|
||||
Explanation: You can swap s[0] = 'a' and s[1] = 'b' to get "ba", which is equal to goal.
|
||||
|
||||
**Example 2**:
|
||||
|
||||
Input: s = "ab", goal = "ab"
|
||||
Output: false
|
||||
Explanation: The only letters you can swap are s[0] = 'a' and s[1] = 'b', which results in "ba" != goal.
|
||||
|
||||
**Example 3**:
|
||||
|
||||
Input: s = "aa", goal = "aa"
|
||||
Output: true
|
||||
Explanation: You can swap s[0] = 'a' and s[1] = 'a' to get "aa", which is equal to goal.
|
||||
|
||||
**Example 4**:
|
||||
|
||||
Input: s = "aaaaaaabc", goal = "aaaaaaacb"
|
||||
Output: true
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- 1 <= s.length, goal.length <= 2 * 10000
|
||||
- s and goal consist of lowercase letters.
|
||||
|
||||
## 题目大意
|
||||
|
||||
给你两个字符串 s 和 goal ，只要我们可以通过交换 s 中的两个字母得到与 goal 相等的结果，就返回 true；否则返回 false 。
|
||||
|
||||
交换字母的定义是：取两个下标 i 和 j （下标从 0 开始）且满足 i != j ，接着交换 s[i] 和 s[j] 处的字符。
|
||||
|
||||
例如，在 "abcd" 中交换下标 0 和下标 2 的元素可以生成 "cbad" 。
|
||||
|
||||
## 解题思路
|
||||
|
||||
分为两种情况进行比较:
|
||||
- s 等于 goal, s 中有重复元素就返回 true,否则返回 false
|
||||
- s 不等于 goal, s 中有两个下标不同的字符与 goal 中对应下标的字符分别相等
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
func buddyStrings(s string, goal string) bool {
|
||||
if len(s) != len(goal) || len(s) <= 1 {
|
||||
return false
|
||||
}
|
||||
mp := make(map[byte]int)
|
||||
if s == goal {
|
||||
for i := 0; i < len(s); i++ {
|
||||
if _, ok := mp[s[i]]; ok {
|
||||
return true
|
||||
}
|
||||
mp[s[i]]++
|
||||
}
|
||||
return false
|
||||
}
|
||||
first, second := -1, -1
|
||||
for i := 0; i < len(s); i++ {
|
||||
if s[i] != goal[i] {
|
||||
if first == -1 {
|
||||
first = i
|
||||
} else if second == -1 {
|
||||
second = i
|
||||
} else {
|
||||
return false
|
||||
}
|
||||
}
|
||||
}
|
||||
return second != -1 && s[first] == goal[second] && s[second] == goal[first]
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0856.Score-of-Parentheses/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -92,6 +92,6 @@ func shortestSubarray(A []int, K int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0856.Score-of-Parentheses/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0859.Buddy-Strings/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -84,5 +84,5 @@ func isAlienSorted(words []string, order string) bool {
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes/">下一页➡️</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0958.Check-Completeness-of-a-Binary-Tree/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -0,0 +1,96 @@
|
||||
# [958. Check Completeness of a Binary Tree](https://leetcode.com/problems/check-completeness-of-a-binary-tree/)
|
||||
|
||||
|
||||
## 题目
|
||||
|
||||
Given the `root` of a binary tree, determine if it is a *complete binary tree*.
|
||||
|
||||
In a **[complete binary tree](http://en.wikipedia.org/wiki/Binary_tree#Types_of_binary_trees)**, every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible. It can have between `1` and `2h` nodes inclusive at the last level `h`.
|
||||
|
||||
**Example 1:**
|
||||
|
||||
|
||||
|
||||
```
|
||||
Input: root = [1,2,3,4,5,6]
|
||||
Output: true
|
||||
Explanation: Every level before the last is full (ie. levels with node-values {1} and {2, 3}), and all nodes in the last level ({4, 5, 6}) are as far left as possible.
|
||||
|
||||
```
|
||||
|
||||
**Example 2:**
|
||||
|
||||
|
||||
|
||||
```
|
||||
Input: root = [1,2,3,4,5,null,7]
|
||||
Output: false
|
||||
Explanation: The node with value 7 isn't as far left as possible.
|
||||
|
||||
```
|
||||
|
||||
**Constraints:**
|
||||
|
||||
- The number of nodes in the tree is in the range `[1, 100]`.
|
||||
- `1 <= Node.val <= 1000`
|
||||
|
||||
## 题目大意
|
||||
|
||||
给定一个二叉树，确定它是否是一个完全二叉树。
|
||||
|
||||
百度百科中对完全二叉树的定义如下：
|
||||
|
||||
若设二叉树的深度为 h，除第 h 层外，其它各层 (1～h-1) 的结点数都达到最大个数，第 h 层所有的结点都连续集中在最左边，这就是完全二叉树。（注：第 h 层可能包含 1~ 2h 个节点。）
|
||||
|
||||
## 解题思路
|
||||
|
||||
- 这一题是按层序遍历的变种题。
|
||||
- 判断每个节点的左孩子是否为空。
|
||||
- 类似的题目，第 102，107，199 题都是按层序遍历的。
|
||||
|
||||
## 代码
|
||||
|
||||
```go
|
||||
package leetcode
|
||||
|
||||
import (
|
||||
"github.com/halfrost/LeetCode-Go/structures"
|
||||
)
|
||||
|
||||
// TreeNode define
|
||||
type TreeNode = structures.TreeNode
|
||||
|
||||
/**
|
||||
* Definition for a binary tree node.
|
||||
* type TreeNode struct {
|
||||
* Val int
|
||||
* Left *TreeNode
|
||||
* Right *TreeNode
|
||||
* }
|
||||
*/
|
||||
|
||||
func isCompleteTree(root *TreeNode) bool {
|
||||
queue, found := []*TreeNode{root}, false
|
||||
for len(queue) > 0 {
|
||||
node := queue[0] //取出每一层的第一个节点
|
||||
queue = queue[1:]
|
||||
if node == nil {
|
||||
found = true
|
||||
} else {
|
||||
if found {
|
||||
return false // 层序遍历中，两个不为空的节点中出现一个 nil
|
||||
}
|
||||
//如果左孩子为nil，则append进去的node.Left为nil
|
||||
queue = append(queue, node.Left, node.Right)
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes/">下一页➡️</a></p>
|
||||
</div>
|
||||
@ -152,6 +152,6 @@ func getFaceIdx(size, i, j, k int) int {
|
||||
|
||||
----------------------------------------------
|
||||
<div style="display: flex;justify-content: space-between;align-items: center;">
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0958.Check-Completeness-of-a-Binary-Tree/">⬅️上一页</a></p>
|
||||
<p><a href="https://books.halfrost.com/leetcode/ChapterFour/0900~0999/0961.N-Repeated-Element-in-Size-2N-Array/">下一页➡️</a></p>
|
||||
</div>
|
||||
|
||||
@ -55,8 +55,7 @@ Return the **length** of a maximum size turbulent subarray of A.
|
||||
|
||||
|
||||
- 给出一个数组，要求找出“摆动数组”的最大长度。所谓“摆动数组”的意思是，元素一大一小间隔的。
|
||||
- 这一题可以用滑动窗口来解答。用一个变量记住下次出现的元素需要大于还是需要小于前一个元素。也可以用模拟的方法，用两个变量分别记录上升和下降数字的长度。一旦元素相等了，上升和下降数字长度都置为 1，其他时候按照上升和下降的关系增加队列长度即可，最后输出动态维护的最长长度。
|
||||
|
||||
- 这一题可以用滑动窗口来解答。用相邻元素差的乘积大于零（a ^ b >= 0 说明a b乘积大于零）来判断是否是湍流， 如果是，那么扩大窗口。否则窗口缩小为0，开始新的一个窗口。
|
||||
|
||||
## 代码
|
||||
|
||||
@ -65,14 +64,14 @@ Return the **length** of a maximum size turbulent subarray of A.
|
||||
package leetcode
|
||||
|
||||
// 解法一 模拟法
|
||||
func maxTurbulenceSize(A []int) int {
|
||||
func maxTurbulenceSize(arr []int) int {
|
||||
inc, dec := 1, 1
|
||||
maxLen := min(1, len(A))
|
||||
for i := 1; i < len(A); i++ {
|
||||
if A[i-1] < A[i] {
|
||||
maxLen := min(1, len(arr))
|
||||
for i := 1; i < len(arr); i++ {
|
||||
if arr[i-1] < arr[i] {
|
||||
inc = dec + 1
|
||||
dec = 1
|
||||
} else if A[i-1] > A[i] {
|
||||
} else if arr[i-1] > arr[i] {
|
||||
dec = inc + 1
|
||||
inc = 1
|
||||
} else {
|
||||
@ -85,25 +84,23 @@ func maxTurbulenceSize(A []int) int {
|
||||
}
|
||||
|
||||
// 解法二 滑动窗口
|
||||
func maxTurbulenceSize1(A []int) int {
|
||||
if len(A) == 1 {
|
||||
return 1
|
||||
func maxTurbulenceSize1(arr []int) int {
|
||||
var maxLength int
|
||||
if len(arr) == 2 && arr[0] != arr[1] {
|
||||
maxLength = 2
|
||||
} else {
|
||||
maxLength = 1
|
||||
}
|
||||
// flag > 0 代表下一个数要大于前一个数，flag < 0 代表下一个数要小于前一个数
|
||||
res, left, right, flag, lastNum := 0, 0, 0, A[1]-A[0], A[0]
|
||||
for left < len(A) {
|
||||
if right < len(A)-1 && ((A[right+1] > lastNum && flag > 0) || (A[right+1] < lastNum && flag < 0) || (right == left)) {
|
||||
right++
|
||||
flag = lastNum - A[right]
|
||||
lastNum = A[right]
|
||||
} else {
|
||||
if flag != 0 {
|
||||
res = max(res, right-left+1)
|
||||
}
|
||||
left++
|
||||
left := 0
|
||||
for right := 2; right < len(arr); right++ {
|
||||
if arr[right] == arr[right-1] {
|
||||
left = right
|
||||
} else if (arr[right]-arr[right-1])^(arr[right-1]-arr[right-2]) >= 0 {
|
||||
left = right - 1
|
||||
}
|
||||
maxLength = max(maxLength, right-left+1)
|
||||
}
|
||||
return max(res, 1)
|
||||
return maxLength
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
@ -68,13 +68,14 @@ There're no valid words for "gaswxyz" cause none of the words in the list cont
|
||||
## 代码
|
||||
|
||||
```go
|
||||
|
||||
package leetcode
|
||||
|
||||
/*
|
||||
匹配跟单词中的字母顺序，字母个数都无关，可以用bitmap压缩
|
||||
1. 记录word中 利用map记录各种bit标示的个数
|
||||
2. puzzles 中各个字母都不相同! 记录bitmap，然后搜索子空间中各种bit标识的个数的和
|
||||
因为puzzles长度最长是7，所以搜索空间 2^7
|
||||
匹配跟单词中的字母顺序，字母个数都无关，可以用 bitmap 压缩
|
||||
1. 记录 word 中 利用 map 记录各种 bit 标示的个数
|
||||
2. puzzles 中各个字母都不相同! 记录 bitmap，然后搜索子空间中各种 bit 标识的个数的和
|
||||
因为 puzzles 长度最长是7，所以搜索空间 2^7
|
||||
*/
|
||||
func findNumOfValidWords(words []string, puzzles []string) []int {
|
||||
wordBitStatusMap, res := make(map[uint32]int, 0), []int{}
|
||||
@ -84,7 +85,7 @@ func findNumOfValidWords(words []string, puzzles []string) []int {
|
||||
for _, p := range puzzles {
|
||||
var bitMap uint32
|
||||
var totalNum int
|
||||
bitMap |= (1 << (p[0] - 'a')) //work中要包含 p 的第一个字母 所以这个bit位上必须是1
|
||||
bitMap |= (1 << (p[0] - 'a')) //work 中要包含 p 的第一个字母 所以这个 bit 位上必须是 1
|
||||
findNum([]byte(p)[1:], bitMap, &totalNum, wordBitStatusMap)
|
||||
res = append(res, totalNum)
|
||||
}
|
||||
@ -99,20 +100,22 @@ func toBitMap(word []byte) uint32 {
|
||||
return res
|
||||
}
|
||||
|
||||
//利用dfs 搜索 pussles的子空间
|
||||
//利用 dfs 搜索 puzzles 的子空间
|
||||
func findNum(puzzles []byte, bitMap uint32, totalNum *int, m map[uint32]int) {
|
||||
if len(puzzles) == 0 {
|
||||
*totalNum = *totalNum + m[bitMap]
|
||||
return
|
||||
}
|
||||
//不包含puzzles[0],即puzzles[0]对应bit是0
|
||||
//不包含 puzzles[0],即 puzzles[0] 对应 bit 是 0
|
||||
findNum(puzzles[1:], bitMap, totalNum, m)
|
||||
//包含puzzles[0],即puzzles[0]对应bit是1
|
||||
//包含 puzzles[0],即 puzzles[0] 对应 bit 是 1
|
||||
bitMap |= (1 << (puzzles[0] - 'a'))
|
||||
findNum(puzzles[1:], bitMap, totalNum, m)
|
||||
bitMap ^= (1 << (puzzles[0] - 'a')) //异或 清零
|
||||
return
|
||||
}
|
||||
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
@ -53,7 +53,7 @@ bool isPrime (int n){
|
||||
|
||||
上面这段代码的时间复杂度是 O(sqrt(n)) 而不是 O(n)。
|
||||
|
||||
再举一个例子，有一个字符串数组，将数组中的每一个字符串按照字母序排序，之后再降整个字符串数组按照字典序排序。两步操作的整体时间复杂度是多少呢？
|
||||
再举一个例子，有一个字符串数组，将数组中的每一个字符串按照字母序排序，之后再将整个字符串数组按照字典序排序。两步操作的整体时间复杂度是多少呢？
|
||||
|
||||
如果回答是 O(n*nlog n + nlog n) = O(n^2log n)，这个答案是错误的。字符串的长度和数组的长度是没有关系的，所以这两个变量应该单独计算。假设最长的字符串长度为 s，数组中有 n 个字符串。对每个字符串排序的时间复杂度是 O(slog s)，将数组中每个字符串都按照字母序排序的时间复杂度是 O(n * slog s)。
|
||||
|
||||
|
||||
@ -8,380 +8,383 @@ weight: 1
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0001|Two Sum|[Go]({{< relref "/ChapterFour/0001~0099/0001.Two-Sum.md" >}})|Easy| O(n)| O(n)||47.4%|
|
||||
|0004|Median of Two Sorted Arrays|[Go]({{< relref "/ChapterFour/0001~0099/0004.Median-of-Two-Sorted-Arrays.md" >}})|Hard||||32.4%|
|
||||
|0011|Container With Most Water|[Go]({{< relref "/ChapterFour/0001~0099/0011.Container-With-Most-Water.md" >}})|Medium| O(n)| O(1)||53.1%|
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium| O(n^2)| O(n)|❤️|29.1%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium| O(n^2)| O(1)|❤️|46.7%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium| O(n^3)| O(n^2)|❤️|36.4%|
|
||||
|0026|Remove Duplicates from Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0026.Remove-Duplicates-from-Sorted-Array.md" >}})|Easy| O(n)| O(1)||47.4%|
|
||||
|0027|Remove Element|[Go]({{< relref "/ChapterFour/0001~0099/0027.Remove-Element.md" >}})|Easy| O(n)| O(1)||50.1%|
|
||||
|0031|Next Permutation|[Go]({{< relref "/ChapterFour/0001~0099/0031.Next-Permutation.md" >}})|Medium||||34.4%|
|
||||
|0033|Search in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0033.Search-in-Rotated-Sorted-Array.md" >}})|Medium||||36.6%|
|
||||
|0034|Find First and Last Position of Element in Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0034.Find-First-and-Last-Position-of-Element-in-Sorted-Array.md" >}})|Medium||||38.4%|
|
||||
|0001|Two Sum|[Go]({{< relref "/ChapterFour/0001~0099/0001.Two-Sum.md" >}})|Easy| O(n)| O(n)||47.9%|
|
||||
|0004|Median of Two Sorted Arrays|[Go]({{< relref "/ChapterFour/0001~0099/0004.Median-of-Two-Sorted-Arrays.md" >}})|Hard||||33.1%|
|
||||
|0011|Container With Most Water|[Go]({{< relref "/ChapterFour/0001~0099/0011.Container-With-Most-Water.md" >}})|Medium| O(n)| O(1)||53.2%|
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium| O(n^2)| O(n)|❤️|30.0%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium| O(n^2)| O(1)|❤️|46.9%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium| O(n^3)| O(n^2)|❤️|36.8%|
|
||||
|0026|Remove Duplicates from Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0026.Remove-Duplicates-from-Sorted-Array.md" >}})|Easy| O(n)| O(1)||47.8%|
|
||||
|0027|Remove Element|[Go]({{< relref "/ChapterFour/0001~0099/0027.Remove-Element.md" >}})|Easy| O(n)| O(1)||50.5%|
|
||||
|0031|Next Permutation|[Go]({{< relref "/ChapterFour/0001~0099/0031.Next-Permutation.md" >}})|Medium||||34.8%|
|
||||
|0033|Search in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0033.Search-in-Rotated-Sorted-Array.md" >}})|Medium||||37.1%|
|
||||
|0034|Find First and Last Position of Element in Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0034.Find-First-and-Last-Position-of-Element-in-Sorted-Array.md" >}})|Medium||||39.1%|
|
||||
|0035|Search Insert Position|[Go]({{< relref "/ChapterFour/0001~0099/0035.Search-Insert-Position.md" >}})|Easy||||42.7%|
|
||||
|0036|Valid Sudoku|[Go]({{< relref "/ChapterFour/0001~0099/0036.Valid-Sudoku.md" >}})|Medium||||51.9%|
|
||||
|0037|Sudoku Solver|[Go]({{< relref "/ChapterFour/0001~0099/0037.Sudoku-Solver.md" >}})|Hard||||49.3%|
|
||||
|0039|Combination Sum|[Go]({{< relref "/ChapterFour/0001~0099/0039.Combination-Sum.md" >}})|Medium| O(n log n)| O(n)||61.3%|
|
||||
|0040|Combination Sum II|[Go]({{< relref "/ChapterFour/0001~0099/0040.Combination-Sum-II.md" >}})|Medium| O(n log n)| O(n)||51.2%|
|
||||
|0041|First Missing Positive|[Go]({{< relref "/ChapterFour/0001~0099/0041.First-Missing-Positive.md" >}})|Hard| O(n)| O(n)||34.7%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|53.0%|
|
||||
|0045|Jump Game II|[Go]({{< relref "/ChapterFour/0001~0099/0045.Jump-Game-II.md" >}})|Medium||||33.8%|
|
||||
|0046|Permutations|[Go]({{< relref "/ChapterFour/0001~0099/0046.Permutations.md" >}})|Medium||||68.7%|
|
||||
|0047|Permutations II|[Go]({{< relref "/ChapterFour/0001~0099/0047.Permutations-II.md" >}})|Medium||||51.1%|
|
||||
|0048|Rotate Image|[Go]({{< relref "/ChapterFour/0001~0099/0048.Rotate-Image.md" >}})|Medium| O(n)| O(1)||62.8%|
|
||||
|0051|N-Queens|[Go]({{< relref "/ChapterFour/0001~0099/0051.N-Queens.md" >}})|Hard||||53.3%|
|
||||
|0053|Maximum Subarray|[Go]({{< relref "/ChapterFour/0001~0099/0053.Maximum-Subarray.md" >}})|Easy| O(n)| O(n)||48.3%|
|
||||
|0054|Spiral Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0054.Spiral-Matrix.md" >}})|Medium| O(n)| O(n^2)||37.9%|
|
||||
|0055|Jump Game|[Go]({{< relref "/ChapterFour/0001~0099/0055.Jump-Game.md" >}})|Medium||||35.9%|
|
||||
|0056|Merge Intervals|[Go]({{< relref "/ChapterFour/0001~0099/0056.Merge-Intervals.md" >}})|Medium| O(n log n)| O(1)||42.4%|
|
||||
|0057|Insert Interval|[Go]({{< relref "/ChapterFour/0001~0099/0057.Insert-Interval.md" >}})|Medium| O(n)| O(1)||36.1%|
|
||||
|0059|Spiral Matrix II|[Go]({{< relref "/ChapterFour/0001~0099/0059.Spiral-Matrix-II.md" >}})|Medium| O(n)| O(n^2)||59.4%|
|
||||
|0063|Unique Paths II|[Go]({{< relref "/ChapterFour/0001~0099/0063.Unique-Paths-II.md" >}})|Medium| O(n^2)| O(n^2)||36.2%|
|
||||
|0064|Minimum Path Sum|[Go]({{< relref "/ChapterFour/0001~0099/0064.Minimum-Path-Sum.md" >}})|Medium| O(n^2)| O(n^2)||57.4%|
|
||||
|0066|Plus One|[Go]({{< relref "/ChapterFour/0001~0099/0066.Plus-One.md" >}})|Easy||||42.0%|
|
||||
|0073|Set Matrix Zeroes|[Go]({{< relref "/ChapterFour/0001~0099/0073.Set-Matrix-Zeroes.md" >}})|Medium||||45.5%|
|
||||
|0074|Search a 2D Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0074.Search-a-2D-Matrix.md" >}})|Medium||||39.4%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|51.3%|
|
||||
|0077|Combinations|[Go]({{< relref "/ChapterFour/0001~0099/0077.Combinations.md" >}})|Medium||||59.6%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|67.3%|
|
||||
|0079|Word Search|[Go]({{< relref "/ChapterFour/0001~0099/0079.Word-Search.md" >}})|Medium| O(n^2)| O(n^2)|❤️|38.1%|
|
||||
|0080|Remove Duplicates from Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0080.Remove-Duplicates-from-Sorted-Array-II.md" >}})|Medium| O(n)| O(1||47.2%|
|
||||
|0081|Search in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0081.Search-in-Rotated-Sorted-Array-II.md" >}})|Medium||||34.0%|
|
||||
|0084|Largest Rectangle in Histogram|[Go]({{< relref "/ChapterFour/0001~0099/0084.Largest-Rectangle-in-Histogram.md" >}})|Hard| O(n)| O(n)|❤️|38.4%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy| O(n)| O(1)|❤️|41.5%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium| O(n^2)| O(n)|❤️|50.7%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||54.5%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||51.7%|
|
||||
|0108|Convert Sorted Array to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0108.Convert-Sorted-Array-to-Binary-Search-Tree.md" >}})|Easy||||63.2%|
|
||||
|0118|Pascal's Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0118.Pascals-Triangle.md" >}})|Easy||||58.3%|
|
||||
|0119|Pascal's Triangle II|[Go]({{< relref "/ChapterFour/0100~0199/0119.Pascals-Triangle-II.md" >}})|Easy||||53.8%|
|
||||
|0120|Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0120.Triangle.md" >}})|Medium| O(n^2)| O(n)||47.7%|
|
||||
|0121|Best Time to Buy and Sell Stock|[Go]({{< relref "/ChapterFour/0100~0199/0121.Best-Time-to-Buy-and-Sell-Stock.md" >}})|Easy| O(n)| O(1)||52.4%|
|
||||
|0122|Best Time to Buy and Sell Stock II|[Go]({{< relref "/ChapterFour/0100~0199/0122.Best-Time-to-Buy-and-Sell-Stock-II.md" >}})|Easy| O(n)| O(1)||59.7%|
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium||||47.6%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||30.9%|
|
||||
|0135|Candy|[Go]({{< relref "/ChapterFour/0100~0199/0135.Candy.md" >}})|Hard||||35.4%|
|
||||
|0136|Single Number|[Go]({{< relref "/ChapterFour/0100~0199/0136.Single-Number.md" >}})|Easy||||67.3%|
|
||||
|0137|Single Number II|[Go]({{< relref "/ChapterFour/0100~0199/0137.Single-Number-II.md" >}})|Medium||||54.9%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium||||40.0%|
|
||||
|0152|Maximum Product Subarray|[Go]({{< relref "/ChapterFour/0100~0199/0152.Maximum-Product-Subarray.md" >}})|Medium| O(n)| O(1)||33.3%|
|
||||
|0153|Find Minimum in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0100~0199/0153.Find-Minimum-in-Rotated-Sorted-Array.md" >}})|Medium||||46.8%|
|
||||
|0154|Find Minimum in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0100~0199/0154.Find-Minimum-in-Rotated-Sorted-Array-II.md" >}})|Hard||||42.3%|
|
||||
|0162|Find Peak Element|[Go]({{< relref "/ChapterFour/0100~0199/0162.Find-Peak-Element.md" >}})|Medium||||44.6%|
|
||||
|0164|Maximum Gap|[Go]({{< relref "/ChapterFour/0100~0199/0164.Maximum-Gap.md" >}})|Hard||||40.1%|
|
||||
|0167|Two Sum II - Input array is sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-array-is-sorted.md" >}})|Easy| O(n)| O(1)||56.5%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||60.9%|
|
||||
|0174|Dungeon Game|[Go]({{< relref "/ChapterFour/0100~0199/0174.Dungeon-Game.md" >}})|Hard||||34.0%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||36.8%|
|
||||
|0198|House Robber|[Go]({{< relref "/ChapterFour/0100~0199/0198.House-Robber.md" >}})|Medium||||44.0%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium||||50.9%|
|
||||
|0204|Count Primes|[Go]({{< relref "/ChapterFour/0200~0299/0204.Count-Primes.md" >}})|Easy||||32.8%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium| O(n)| O(1)||40.8%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard||||37.9%|
|
||||
|0213|House Robber II|[Go]({{< relref "/ChapterFour/0200~0299/0213.House-Robber-II.md" >}})|Medium||||38.1%|
|
||||
|0215|Kth Largest Element in an Array|[Go]({{< relref "/ChapterFour/0200~0299/0215.Kth-Largest-Element-in-an-Array.md" >}})|Medium||||60.4%|
|
||||
|0216|Combination Sum III|[Go]({{< relref "/ChapterFour/0200~0299/0216.Combination-Sum-III.md" >}})|Medium| O(n)| O(1)|❤️|61.8%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy| O(n)| O(n)||57.9%|
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard||||37.4%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy| O(n)| O(n)||39.7%|
|
||||
|0036|Valid Sudoku|[Go]({{< relref "/ChapterFour/0001~0099/0036.Valid-Sudoku.md" >}})|Medium||||53.6%|
|
||||
|0037|Sudoku Solver|[Go]({{< relref "/ChapterFour/0001~0099/0037.Sudoku-Solver.md" >}})|Hard||||51.8%|
|
||||
|0039|Combination Sum|[Go]({{< relref "/ChapterFour/0001~0099/0039.Combination-Sum.md" >}})|Medium| O(n log n)| O(n)||62.8%|
|
||||
|0040|Combination Sum II|[Go]({{< relref "/ChapterFour/0001~0099/0040.Combination-Sum-II.md" >}})|Medium| O(n log n)| O(n)||51.7%|
|
||||
|0041|First Missing Positive|[Go]({{< relref "/ChapterFour/0001~0099/0041.First-Missing-Positive.md" >}})|Hard| O(n)| O(n)||35.3%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|54.6%|
|
||||
|0045|Jump Game II|[Go]({{< relref "/ChapterFour/0001~0099/0045.Jump-Game-II.md" >}})|Medium||||35.4%|
|
||||
|0046|Permutations|[Go]({{< relref "/ChapterFour/0001~0099/0046.Permutations.md" >}})|Medium||||70.2%|
|
||||
|0047|Permutations II|[Go]({{< relref "/ChapterFour/0001~0099/0047.Permutations-II.md" >}})|Medium||||52.4%|
|
||||
|0048|Rotate Image|[Go]({{< relref "/ChapterFour/0001~0099/0048.Rotate-Image.md" >}})|Medium| O(n)| O(1)||64.4%|
|
||||
|0051|N-Queens|[Go]({{< relref "/ChapterFour/0001~0099/0051.N-Queens.md" >}})|Hard||||54.9%|
|
||||
|0053|Maximum Subarray|[Go]({{< relref "/ChapterFour/0001~0099/0053.Maximum-Subarray.md" >}})|Easy| O(n)| O(n)||49.2%|
|
||||
|0054|Spiral Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0054.Spiral-Matrix.md" >}})|Medium| O(n)| O(n^2)||39.5%|
|
||||
|0055|Jump Game|[Go]({{< relref "/ChapterFour/0001~0099/0055.Jump-Game.md" >}})|Medium||||36.9%|
|
||||
|0056|Merge Intervals|[Go]({{< relref "/ChapterFour/0001~0099/0056.Merge-Intervals.md" >}})|Medium| O(n log n)| O(1)||43.4%|
|
||||
|0057|Insert Interval|[Go]({{< relref "/ChapterFour/0001~0099/0057.Insert-Interval.md" >}})|Medium| O(n)| O(1)||36.7%|
|
||||
|0059|Spiral Matrix II|[Go]({{< relref "/ChapterFour/0001~0099/0059.Spiral-Matrix-II.md" >}})|Medium| O(n)| O(n^2)||60.7%|
|
||||
|0063|Unique Paths II|[Go]({{< relref "/ChapterFour/0001~0099/0063.Unique-Paths-II.md" >}})|Medium| O(n^2)| O(n^2)||36.7%|
|
||||
|0064|Minimum Path Sum|[Go]({{< relref "/ChapterFour/0001~0099/0064.Minimum-Path-Sum.md" >}})|Medium| O(n^2)| O(n^2)||58.2%|
|
||||
|0066|Plus One|[Go]({{< relref "/ChapterFour/0001~0099/0066.Plus-One.md" >}})|Easy||||42.2%|
|
||||
|0073|Set Matrix Zeroes|[Go]({{< relref "/ChapterFour/0001~0099/0073.Set-Matrix-Zeroes.md" >}})|Medium||||46.9%|
|
||||
|0074|Search a 2D Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0074.Search-a-2D-Matrix.md" >}})|Medium||||41.1%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|53.0%|
|
||||
|0077|Combinations|[Go]({{< relref "/ChapterFour/0001~0099/0077.Combinations.md" >}})|Medium||||61.4%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|68.8%|
|
||||
|0079|Word Search|[Go]({{< relref "/ChapterFour/0001~0099/0079.Word-Search.md" >}})|Medium| O(n^2)| O(n^2)|❤️|39.0%|
|
||||
|0080|Remove Duplicates from Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0080.Remove-Duplicates-from-Sorted-Array-II.md" >}})|Medium| O(n)| O(1||47.9%|
|
||||
|0081|Search in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0081.Search-in-Rotated-Sorted-Array-II.md" >}})|Medium||||34.2%|
|
||||
|0084|Largest Rectangle in Histogram|[Go]({{< relref "/ChapterFour/0001~0099/0084.Largest-Rectangle-in-Histogram.md" >}})|Hard| O(n)| O(n)|❤️|39.1%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy| O(n)| O(1)|❤️|42.4%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium| O(n^2)| O(n)|❤️|51.7%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||55.7%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||53.7%|
|
||||
|0108|Convert Sorted Array to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0108.Convert-Sorted-Array-to-Binary-Search-Tree.md" >}})|Easy||||64.4%|
|
||||
|0118|Pascal's Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0118.Pascals-Triangle.md" >}})|Easy||||60.9%|
|
||||
|0119|Pascal's Triangle II|[Go]({{< relref "/ChapterFour/0100~0199/0119.Pascals-Triangle-II.md" >}})|Easy||||55.4%|
|
||||
|0120|Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0120.Triangle.md" >}})|Medium| O(n^2)| O(n)||49.0%|
|
||||
|0121|Best Time to Buy and Sell Stock|[Go]({{< relref "/ChapterFour/0100~0199/0121.Best-Time-to-Buy-and-Sell-Stock.md" >}})|Easy| O(n)| O(1)||53.1%|
|
||||
|0122|Best Time to Buy and Sell Stock II|[Go]({{< relref "/ChapterFour/0100~0199/0122.Best-Time-to-Buy-and-Sell-Stock-II.md" >}})|Medium| O(n)| O(1)||60.9%|
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium||||48.1%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||32.7%|
|
||||
|0135|Candy|[Go]({{< relref "/ChapterFour/0100~0199/0135.Candy.md" >}})|Hard||||36.1%|
|
||||
|0136|Single Number|[Go]({{< relref "/ChapterFour/0100~0199/0136.Single-Number.md" >}})|Easy||||68.0%|
|
||||
|0137|Single Number II|[Go]({{< relref "/ChapterFour/0100~0199/0137.Single-Number-II.md" >}})|Medium||||55.7%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium||||40.9%|
|
||||
|0152|Maximum Product Subarray|[Go]({{< relref "/ChapterFour/0100~0199/0152.Maximum-Product-Subarray.md" >}})|Medium| O(n)| O(1)||33.7%|
|
||||
|0153|Find Minimum in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0100~0199/0153.Find-Minimum-in-Rotated-Sorted-Array.md" >}})|Medium||||47.5%|
|
||||
|0154|Find Minimum in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0100~0199/0154.Find-Minimum-in-Rotated-Sorted-Array-II.md" >}})|Hard||||43.2%|
|
||||
|0162|Find Peak Element|[Go]({{< relref "/ChapterFour/0100~0199/0162.Find-Peak-Element.md" >}})|Medium||||45.1%|
|
||||
|0164|Maximum Gap|[Go]({{< relref "/ChapterFour/0100~0199/0164.Maximum-Gap.md" >}})|Hard||||40.6%|
|
||||
|0167|Two Sum II - Input Array Is Sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-Array-Is-Sorted.md" >}})|Easy| O(n)| O(1)||57.5%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||61.6%|
|
||||
|0174|Dungeon Game|[Go]({{< relref "/ChapterFour/0100~0199/0174.Dungeon-Game.md" >}})|Hard||||35.7%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||37.3%|
|
||||
|0198|House Robber|[Go]({{< relref "/ChapterFour/0100~0199/0198.House-Robber.md" >}})|Medium||||45.2%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium||||52.2%|
|
||||
|0204|Count Primes|[Go]({{< relref "/ChapterFour/0200~0299/0204.Count-Primes.md" >}})|Medium||||32.8%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium| O(n)| O(1)||41.8%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard||||38.4%|
|
||||
|0213|House Robber II|[Go]({{< relref "/ChapterFour/0200~0299/0213.House-Robber-II.md" >}})|Medium||||38.9%|
|
||||
|0215|Kth Largest Element in an Array|[Go]({{< relref "/ChapterFour/0200~0299/0215.Kth-Largest-Element-in-an-Array.md" >}})|Medium||||61.6%|
|
||||
|0216|Combination Sum III|[Go]({{< relref "/ChapterFour/0200~0299/0216.Combination-Sum-III.md" >}})|Medium| O(n)| O(1)|❤️|62.8%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy| O(n)| O(n)||59.2%|
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard||||37.9%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy| O(n)| O(n)||40.1%|
|
||||
|0220|Contains Duplicate III|[Go]({{< relref "/ChapterFour/0200~0299/0220.Contains-Duplicate-III.md" >}})|Medium||||21.5%|
|
||||
|0228|Summary Ranges|[Go]({{< relref "/ChapterFour/0200~0299/0228.Summary-Ranges.md" >}})|Easy||||43.5%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.0%|
|
||||
|0239|Sliding Window Maximum|[Go]({{< relref "/ChapterFour/0200~0299/0239.Sliding-Window-Maximum.md" >}})|Hard||||45.3%|
|
||||
|0240|Search a 2D Matrix II|[Go]({{< relref "/ChapterFour/0200~0299/0240.Search-a-2D-Matrix-II.md" >}})|Medium||||46.2%|
|
||||
|0260|Single Number III|[Go]({{< relref "/ChapterFour/0200~0299/0260.Single-Number-III.md" >}})|Medium||||65.7%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||56.7%|
|
||||
|0274|H-Index|[Go]({{< relref "/ChapterFour/0200~0299/0274.H-Index.md" >}})|Medium||||36.7%|
|
||||
|0275|H-Index II|[Go]({{< relref "/ChapterFour/0200~0299/0275.H-Index-II.md" >}})|Medium||||36.6%|
|
||||
|0283|Move Zeroes|[Go]({{< relref "/ChapterFour/0200~0299/0283.Move-Zeroes.md" >}})|Easy| O(n)| O(1)||59.0%|
|
||||
|0284|Peeking Iterator|[Go]({{< relref "/ChapterFour/0200~0299/0284.Peeking-Iterator.md" >}})|Medium||||51.8%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.1%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium||||46.4%|
|
||||
|0303|Range Sum Query - Immutable|[Go]({{< relref "/ChapterFour/0300~0399/0303.Range-Sum-Query-Immutable.md" >}})|Easy||||50.1%|
|
||||
|0304|Range Sum Query 2D - Immutable|[Go]({{< relref "/ChapterFour/0300~0399/0304.Range-Sum-Query-2D-Immutable.md" >}})|Medium||||44.3%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium||||37.9%|
|
||||
|0309|Best Time to Buy and Sell Stock with Cooldown|[Go]({{< relref "/ChapterFour/0300~0399/0309.Best-Time-to-Buy-and-Sell-Stock-with-Cooldown.md" >}})|Medium||||49.2%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.0%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium||||55.6%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium||||38.5%|
|
||||
|0324|Wiggle Sort II|[Go]({{< relref "/ChapterFour/0300~0399/0324.Wiggle-Sort-II.md" >}})|Medium||||31.2%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.2%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium||||63.2%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy||||66.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy||||52.7%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||38.7%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||38.8%|
|
||||
|0373|Find K Pairs with Smallest Sums|[Go]({{< relref "/ChapterFour/0300~0399/0373.Find-K-Pairs-with-Smallest-Sums.md" >}})|Medium||||39.0%|
|
||||
|0376|Wiggle Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0376.Wiggle-Subsequence.md" >}})|Medium||||42.9%|
|
||||
|0377|Combination Sum IV|[Go]({{< relref "/ChapterFour/0300~0399/0377.Combination-Sum-IV.md" >}})|Medium||||47.5%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.0%|
|
||||
|0393|UTF-8 Validation|[Go]({{< relref "/ChapterFour/0300~0399/0393.UTF-8-Validation.md" >}})|Medium||||38.6%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||55.4%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||47.7%|
|
||||
|0413|Arithmetic Slices|[Go]({{< relref "/ChapterFour/0400~0499/0413.Arithmetic-Slices.md" >}})|Medium||||60.4%|
|
||||
|0414|Third Maximum Number|[Go]({{< relref "/ChapterFour/0400~0499/0414.Third-Maximum-Number.md" >}})|Easy||||30.8%|
|
||||
|0416|Partition Equal Subset Sum|[Go]({{< relref "/ChapterFour/0400~0499/0416.Partition-Equal-Subset-Sum.md" >}})|Medium||||45.4%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||45.6%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium||||54.9%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||45.3%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||48.8%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium||||52.8%|
|
||||
|0448|Find All Numbers Disappeared in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0448.Find-All-Numbers-Disappeared-in-an-Array.md" >}})|Easy||||56.8%|
|
||||
|0453|Minimum Moves to Equal Array Elements|[Go]({{< relref "/ChapterFour/0400~0499/0453.Minimum-Moves-to-Equal-Array-Elements.md" >}})|Easy||||51.9%|
|
||||
|0454|4Sum II|[Go]({{< relref "/ChapterFour/0400~0499/0454.4Sum-II.md" >}})|Medium||||55.2%|
|
||||
|0455|Assign Cookies|[Go]({{< relref "/ChapterFour/0400~0499/0455.Assign-Cookies.md" >}})|Easy||||50.4%|
|
||||
|0228|Summary Ranges|[Go]({{< relref "/ChapterFour/0200~0299/0228.Summary-Ranges.md" >}})|Easy||||44.2%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.9%|
|
||||
|0239|Sliding Window Maximum|[Go]({{< relref "/ChapterFour/0200~0299/0239.Sliding-Window-Maximum.md" >}})|Hard||||45.8%|
|
||||
|0240|Search a 2D Matrix II|[Go]({{< relref "/ChapterFour/0200~0299/0240.Search-a-2D-Matrix-II.md" >}})|Medium||||47.1%|
|
||||
|0260|Single Number III|[Go]({{< relref "/ChapterFour/0200~0299/0260.Single-Number-III.md" >}})|Medium||||66.8%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||57.9%|
|
||||
|0274|H-Index|[Go]({{< relref "/ChapterFour/0200~0299/0274.H-Index.md" >}})|Medium||||37.0%|
|
||||
|0275|H-Index II|[Go]({{< relref "/ChapterFour/0200~0299/0275.H-Index-II.md" >}})|Medium||||36.7%|
|
||||
|0283|Move Zeroes|[Go]({{< relref "/ChapterFour/0200~0299/0283.Move-Zeroes.md" >}})|Easy| O(n)| O(1)||59.7%|
|
||||
|0284|Peeking Iterator|[Go]({{< relref "/ChapterFour/0200~0299/0284.Peeking-Iterator.md" >}})|Medium||||52.7%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.3%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium||||47.6%|
|
||||
|0303|Range Sum Query - Immutable|[Go]({{< relref "/ChapterFour/0300~0399/0303.Range-Sum-Query-Immutable.md" >}})|Easy||||53.2%|
|
||||
|0304|Range Sum Query 2D - Immutable|[Go]({{< relref "/ChapterFour/0300~0399/0304.Range-Sum-Query-2D-Immutable.md" >}})|Medium||||45.8%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium||||38.3%|
|
||||
|0309|Best Time to Buy and Sell Stock with Cooldown|[Go]({{< relref "/ChapterFour/0300~0399/0309.Best-Time-to-Buy-and-Sell-Stock-with-Cooldown.md" >}})|Medium||||50.9%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.1%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium||||56.1%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium||||39.1%|
|
||||
|0324|Wiggle Sort II|[Go]({{< relref "/ChapterFour/0300~0399/0324.Wiggle-Sort-II.md" >}})|Medium||||31.6%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.0%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium||||63.9%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy||||67.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy||||53.9%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||39.3%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||40.1%|
|
||||
|0373|Find K Pairs with Smallest Sums|[Go]({{< relref "/ChapterFour/0300~0399/0373.Find-K-Pairs-with-Smallest-Sums.md" >}})|Medium||||38.9%|
|
||||
|0376|Wiggle Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0376.Wiggle-Subsequence.md" >}})|Medium||||43.8%|
|
||||
|0377|Combination Sum IV|[Go]({{< relref "/ChapterFour/0300~0399/0377.Combination-Sum-IV.md" >}})|Medium||||48.2%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.6%|
|
||||
|0384|Shuffle an Array|[Go]({{< relref "/ChapterFour/0300~0399/0384.Shuffle-an-Array.md" >}})|Medium||||56.1%|
|
||||
|0391|Perfect Rectangle|[Go]({{< relref "/ChapterFour/0300~0399/0391.Perfect-Rectangle.md" >}})|Hard||||31.8%|
|
||||
|0393|UTF-8 Validation|[Go]({{< relref "/ChapterFour/0300~0399/0393.UTF-8-Validation.md" >}})|Medium||||38.9%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||56.1%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||48.9%|
|
||||
|0413|Arithmetic Slices|[Go]({{< relref "/ChapterFour/0400~0499/0413.Arithmetic-Slices.md" >}})|Medium||||61.6%|
|
||||
|0414|Third Maximum Number|[Go]({{< relref "/ChapterFour/0400~0499/0414.Third-Maximum-Number.md" >}})|Easy||||31.1%|
|
||||
|0416|Partition Equal Subset Sum|[Go]({{< relref "/ChapterFour/0400~0499/0416.Partition-Equal-Subset-Sum.md" >}})|Medium||||45.7%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||46.8%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium||||55.1%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||46.6%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||49.0%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium||||53.2%|
|
||||
|0448|Find All Numbers Disappeared in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0448.Find-All-Numbers-Disappeared-in-an-Array.md" >}})|Easy||||58.2%|
|
||||
|0453|Minimum Moves to Equal Array Elements|[Go]({{< relref "/ChapterFour/0400~0499/0453.Minimum-Moves-to-Equal-Array-Elements.md" >}})|Medium||||52.8%|
|
||||
|0454|4Sum II|[Go]({{< relref "/ChapterFour/0400~0499/0454.4Sum-II.md" >}})|Medium||||55.6%|
|
||||
|0455|Assign Cookies|[Go]({{< relref "/ChapterFour/0400~0499/0455.Assign-Cookies.md" >}})|Easy||||50.6%|
|
||||
|0456|132 Pattern|[Go]({{< relref "/ChapterFour/0400~0499/0456.132-Pattern.md" >}})|Medium||||30.7%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||30.8%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||55.7%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||67.4%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.0%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||43.6%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.2%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium||||51.1%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard||||39.8%|
|
||||
|0485|Max Consecutive Ones|[Go]({{< relref "/ChapterFour/0400~0499/0485.Max-Consecutive-Ones.md" >}})|Easy||||53.3%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||48.9%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||28.2%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.4%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy||||67.0%|
|
||||
|0498|Diagonal Traverse|[Go]({{< relref "/ChapterFour/0400~0499/0498.Diagonal-Traverse.md" >}})|Medium||||52.0%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||66.6%|
|
||||
|0503|Next Greater Element II|[Go]({{< relref "/ChapterFour/0500~0599/0503.Next-Greater-Element-II.md" >}})|Medium||||59.9%|
|
||||
|0518|Coin Change 2|[Go]({{< relref "/ChapterFour/0500~0599/0518.Coin-Change-2.md" >}})|Medium||||53.8%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||25.5%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium||||50.4%|
|
||||
|0525|Contiguous Array|[Go]({{< relref "/ChapterFour/0500~0599/0525.Contiguous-Array.md" >}})|Medium||||44.2%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||62.6%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||62.6%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium| O(n)| O(n)||36.3%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium||||42.8%|
|
||||
|0554|Brick Wall|[Go]({{< relref "/ChapterFour/0500~0599/0554.Brick-Wall.md" >}})|Medium||||52.0%|
|
||||
|0561|Array Partition I|[Go]({{< relref "/ChapterFour/0500~0599/0561.Array-Partition-I.md" >}})|Easy||||74.3%|
|
||||
|0566|Reshape the Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0566.Reshape-the-Matrix.md" >}})|Easy| O(n^2)| O(n^2)||61.9%|
|
||||
|0575|Distribute Candies|[Go]({{< relref "/ChapterFour/0500~0599/0575.Distribute-Candies.md" >}})|Easy||||64.8%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.3%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||51.7%|
|
||||
|0598|Range Addition II|[Go]({{< relref "/ChapterFour/0500~0599/0598.Range-Addition-II.md" >}})|Easy||||50.7%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.5%|
|
||||
|0605|Can Place Flowers|[Go]({{< relref "/ChapterFour/0600~0699/0605.Can-Place-Flowers.md" >}})|Easy||||31.6%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.1%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.0%|
|
||||
|0622|Design Circular Queue|[Go]({{< relref "/ChapterFour/0600~0699/0622.Design-Circular-Queue.md" >}})|Medium||||48.0%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy| O(n)| O(1)||46.6%|
|
||||
|0630|Course Schedule III|[Go]({{< relref "/ChapterFour/0600~0699/0630.Course-Schedule-III.md" >}})|Hard||||35.0%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||55.7%|
|
||||
|0636|Exclusive Time of Functions|[Go]({{< relref "/ChapterFour/0600~0699/0636.Exclusive-Time-of-Functions.md" >}})|Medium||||56.6%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||53.9%|
|
||||
|0643|Maximum Average Subarray I|[Go]({{< relref "/ChapterFour/0600~0699/0643.Maximum-Average-Subarray-I.md" >}})|Easy||||42.5%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||40.9%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium||||60.2%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.3%|
|
||||
|0661|Image Smoother|[Go]({{< relref "/ChapterFour/0600~0699/0661.Image-Smoother.md" >}})|Easy||||52.8%|
|
||||
|0665|Non-decreasing Array|[Go]({{< relref "/ChapterFour/0600~0699/0665.Non-decreasing-Array.md" >}})|Medium||||21.0%|
|
||||
|0667|Beautiful Arrangement II|[Go]({{< relref "/ChapterFour/0600~0699/0667.Beautiful-Arrangement-II.md" >}})|Medium||||59.0%|
|
||||
|0674|Longest Continuous Increasing Subsequence|[Go]({{< relref "/ChapterFour/0600~0699/0674.Longest-Continuous-Increasing-Subsequence.md" >}})|Easy||||46.8%|
|
||||
|0682|Baseball Game|[Go]({{< relref "/ChapterFour/0600~0699/0682.Baseball-Game.md" >}})|Easy||||68.3%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||67.1%|
|
||||
|0697|Degree of an Array|[Go]({{< relref "/ChapterFour/0600~0699/0697.Degree-of-an-Array.md" >}})|Easy||||54.9%|
|
||||
|0699|Falling Squares|[Go]({{< relref "/ChapterFour/0600~0699/0699.Falling-Squares.md" >}})|Hard||||43.5%|
|
||||
|0704|Binary Search|[Go]({{< relref "/ChapterFour/0700~0799/0704.Binary-Search.md" >}})|Easy||||54.9%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||64.0%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.9%|
|
||||
|0713|Subarray Product Less Than K|[Go]({{< relref "/ChapterFour/0700~0799/0713.Subarray-Product-Less-Than-K.md" >}})|Medium| O(n)| O(1)||41.2%|
|
||||
|0714|Best Time to Buy and Sell Stock with Transaction Fee|[Go]({{< relref "/ChapterFour/0700~0799/0714.Best-Time-to-Buy-and-Sell-Stock-with-Transaction-Fee.md" >}})|Medium| O(n)| O(1)||59.0%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||31.1%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||56.2%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||68.4%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.3%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||44.0%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.6%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium||||51.6%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard||||40.3%|
|
||||
|0485|Max Consecutive Ones|[Go]({{< relref "/ChapterFour/0400~0499/0485.Max-Consecutive-Ones.md" >}})|Easy||||54.5%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||49.7%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||29.0%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.3%|
|
||||
|0495|Teemo Attacking|[Go]({{< relref "/ChapterFour/0400~0499/0495.Teemo-Attacking.md" >}})|Easy||||56.5%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy||||68.8%|
|
||||
|0498|Diagonal Traverse|[Go]({{< relref "/ChapterFour/0400~0499/0498.Diagonal-Traverse.md" >}})|Medium||||53.9%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||67.2%|
|
||||
|0503|Next Greater Element II|[Go]({{< relref "/ChapterFour/0500~0599/0503.Next-Greater-Element-II.md" >}})|Medium||||60.8%|
|
||||
|0518|Coin Change 2|[Go]({{< relref "/ChapterFour/0500~0599/0518.Coin-Change-2.md" >}})|Medium||||55.4%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||26.3%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium||||50.7%|
|
||||
|0525|Contiguous Array|[Go]({{< relref "/ChapterFour/0500~0599/0525.Contiguous-Array.md" >}})|Medium||||44.6%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||63.6%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||63.6%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium| O(n)| O(n)||37.1%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium||||43.2%|
|
||||
|0554|Brick Wall|[Go]({{< relref "/ChapterFour/0500~0599/0554.Brick-Wall.md" >}})|Medium||||52.2%|
|
||||
|0561|Array Partition I|[Go]({{< relref "/ChapterFour/0500~0599/0561.Array-Partition-I.md" >}})|Easy||||74.8%|
|
||||
|0566|Reshape the Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0566.Reshape-the-Matrix.md" >}})|Easy| O(n^2)| O(n^2)||62.0%|
|
||||
|0575|Distribute Candies|[Go]({{< relref "/ChapterFour/0500~0599/0575.Distribute-Candies.md" >}})|Easy||||65.2%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.7%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||52.2%|
|
||||
|0598|Range Addition II|[Go]({{< relref "/ChapterFour/0500~0599/0598.Range-Addition-II.md" >}})|Easy||||54.3%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.9%|
|
||||
|0605|Can Place Flowers|[Go]({{< relref "/ChapterFour/0600~0699/0605.Can-Place-Flowers.md" >}})|Easy||||31.9%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.4%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.3%|
|
||||
|0622|Design Circular Queue|[Go]({{< relref "/ChapterFour/0600~0699/0622.Design-Circular-Queue.md" >}})|Medium||||48.2%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy| O(n)| O(1)||46.7%|
|
||||
|0630|Course Schedule III|[Go]({{< relref "/ChapterFour/0600~0699/0630.Course-Schedule-III.md" >}})|Hard||||35.3%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||57.0%|
|
||||
|0636|Exclusive Time of Functions|[Go]({{< relref "/ChapterFour/0600~0699/0636.Exclusive-Time-of-Functions.md" >}})|Medium||||58.3%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||54.2%|
|
||||
|0643|Maximum Average Subarray I|[Go]({{< relref "/ChapterFour/0600~0699/0643.Maximum-Average-Subarray-I.md" >}})|Easy||||42.9%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||41.1%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium||||61.1%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.8%|
|
||||
|0661|Image Smoother|[Go]({{< relref "/ChapterFour/0600~0699/0661.Image-Smoother.md" >}})|Easy||||53.4%|
|
||||
|0665|Non-decreasing Array|[Go]({{< relref "/ChapterFour/0600~0699/0665.Non-decreasing-Array.md" >}})|Medium||||21.2%|
|
||||
|0667|Beautiful Arrangement II|[Go]({{< relref "/ChapterFour/0600~0699/0667.Beautiful-Arrangement-II.md" >}})|Medium||||59.2%|
|
||||
|0674|Longest Continuous Increasing Subsequence|[Go]({{< relref "/ChapterFour/0600~0699/0674.Longest-Continuous-Increasing-Subsequence.md" >}})|Easy||||47.6%|
|
||||
|0682|Baseball Game|[Go]({{< relref "/ChapterFour/0600~0699/0682.Baseball-Game.md" >}})|Easy||||68.8%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||68.2%|
|
||||
|0697|Degree of an Array|[Go]({{< relref "/ChapterFour/0600~0699/0697.Degree-of-an-Array.md" >}})|Easy||||55.3%|
|
||||
|0699|Falling Squares|[Go]({{< relref "/ChapterFour/0600~0699/0699.Falling-Squares.md" >}})|Hard||||43.6%|
|
||||
|0704|Binary Search|[Go]({{< relref "/ChapterFour/0700~0799/0704.Binary-Search.md" >}})|Easy||||54.6%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||63.8%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.8%|
|
||||
|0713|Subarray Product Less Than K|[Go]({{< relref "/ChapterFour/0700~0799/0713.Subarray-Product-Less-Than-K.md" >}})|Medium| O(n)| O(1)||42.2%|
|
||||
|0714|Best Time to Buy and Sell Stock with Transaction Fee|[Go]({{< relref "/ChapterFour/0700~0799/0714.Best-Time-to-Buy-and-Sell-Stock-with-Transaction-Fee.md" >}})|Medium| O(n)| O(1)||60.4%|
|
||||
|0717|1-bit and 2-bit Characters|[Go]({{< relref "/ChapterFour/0700~0799/0717.1-bit-and-2-bit-Characters.md" >}})|Easy||||46.3%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.1%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.2%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||49.9%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||53.4%|
|
||||
|0724|Find Pivot Index|[Go]({{< relref "/ChapterFour/0700~0799/0724.Find-Pivot-Index.md" >}})|Easy||||48.0%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||56.3%|
|
||||
|0735|Asteroid Collision|[Go]({{< relref "/ChapterFour/0700~0799/0735.Asteroid-Collision.md" >}})|Medium||||43.7%|
|
||||
|0739|Daily Temperatures|[Go]({{< relref "/ChapterFour/0700~0799/0739.Daily-Temperatures.md" >}})|Medium||||65.6%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.3%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.9%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||50.3%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||54.4%|
|
||||
|0724|Find Pivot Index|[Go]({{< relref "/ChapterFour/0700~0799/0724.Find-Pivot-Index.md" >}})|Easy||||49.5%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||57.0%|
|
||||
|0735|Asteroid Collision|[Go]({{< relref "/ChapterFour/0700~0799/0735.Asteroid-Collision.md" >}})|Medium||||44.2%|
|
||||
|0739|Daily Temperatures|[Go]({{< relref "/ChapterFour/0700~0799/0739.Daily-Temperatures.md" >}})|Medium||||66.4%|
|
||||
|0744|Find Smallest Letter Greater Than Target|[Go]({{< relref "/ChapterFour/0700~0799/0744.Find-Smallest-Letter-Greater-Than-Target.md" >}})|Easy||||45.8%|
|
||||
|0746|Min Cost Climbing Stairs|[Go]({{< relref "/ChapterFour/0700~0799/0746.Min-Cost-Climbing-Stairs.md" >}})|Easy| O(n)| O(1)||54.0%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||54.8%|
|
||||
|0766|Toeplitz Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0766.Toeplitz-Matrix.md" >}})|Easy| O(n)| O(1)||66.2%|
|
||||
|0775|Global and Local Inversions|[Go]({{< relref "/ChapterFour/0700~0799/0775.Global-and-Local-Inversions.md" >}})|Medium||||45.9%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||57.8%|
|
||||
|0786|K-th Smallest Prime Fraction|[Go]({{< relref "/ChapterFour/0700~0799/0786.K-th-Smallest-Prime-Fraction.md" >}})|Hard||||45.6%|
|
||||
|0795|Number of Subarrays with Bounded Maximum|[Go]({{< relref "/ChapterFour/0700~0799/0795.Number-of-Subarrays-with-Bounded-Maximum.md" >}})|Medium||||52.0%|
|
||||
|0803|Bricks Falling When Hit|[Go]({{< relref "/ChapterFour/0800~0899/0803.Bricks-Falling-When-Hit.md" >}})|Hard||||32.4%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||51.2%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||72.4%|
|
||||
|0812|Largest Triangle Area|[Go]({{< relref "/ChapterFour/0800~0899/0812.Largest-Triangle-Area.md" >}})|Easy||||59.4%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.2%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.0%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.4%|
|
||||
|0746|Min Cost Climbing Stairs|[Go]({{< relref "/ChapterFour/0700~0799/0746.Min-Cost-Climbing-Stairs.md" >}})|Easy| O(n)| O(1)||56.2%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||55.1%|
|
||||
|0766|Toeplitz Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0766.Toeplitz-Matrix.md" >}})|Easy| O(n)| O(1)||66.9%|
|
||||
|0775|Global and Local Inversions|[Go]({{< relref "/ChapterFour/0700~0799/0775.Global-and-Local-Inversions.md" >}})|Medium||||45.7%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||58.1%|
|
||||
|0786|K-th Smallest Prime Fraction|[Go]({{< relref "/ChapterFour/0700~0799/0786.K-th-Smallest-Prime-Fraction.md" >}})|Hard||||47.1%|
|
||||
|0795|Number of Subarrays with Bounded Maximum|[Go]({{< relref "/ChapterFour/0700~0799/0795.Number-of-Subarrays-with-Bounded-Maximum.md" >}})|Medium||||52.2%|
|
||||
|0803|Bricks Falling When Hit|[Go]({{< relref "/ChapterFour/0800~0899/0803.Bricks-Falling-When-Hit.md" >}})|Hard||||33.3%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||52.1%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||73.3%|
|
||||
|0812|Largest Triangle Area|[Go]({{< relref "/ChapterFour/0800~0899/0812.Largest-Triangle-Area.md" >}})|Easy||||59.5%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.7%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.1%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.7%|
|
||||
|0823|Binary Trees With Factors|[Go]({{< relref "/ChapterFour/0800~0899/0823.Binary-Trees-With-Factors.md" >}})|Medium||||43.6%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||39.8%|
|
||||
|0832|Flipping an Image|[Go]({{< relref "/ChapterFour/0800~0899/0832.Flipping-an-Image.md" >}})|Easy||||78.8%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium||||39.1%|
|
||||
|0850|Rectangle Area II|[Go]({{< relref "/ChapterFour/0800~0899/0850.Rectangle-Area-II.md" >}})|Hard||||48.8%|
|
||||
|0851|Loud and Rich|[Go]({{< relref "/ChapterFour/0800~0899/0851.Loud-and-Rich.md" >}})|Medium||||53.7%|
|
||||
|0852|Peak Index in a Mountain Array|[Go]({{< relref "/ChapterFour/0800~0899/0852.Peak-Index-in-a-Mountain-Array.md" >}})|Easy||||71.5%|
|
||||
|0853|Car Fleet|[Go]({{< relref "/ChapterFour/0800~0899/0853.Car-Fleet.md" >}})|Medium||||45.6%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.6%|
|
||||
|0867|Transpose Matrix|[Go]({{< relref "/ChapterFour/0800~0899/0867.Transpose-Matrix.md" >}})|Easy| O(n)| O(1)||61.7%|
|
||||
|0870|Advantage Shuffle|[Go]({{< relref "/ChapterFour/0800~0899/0870.Advantage-Shuffle.md" >}})|Medium||||50.8%|
|
||||
|0874|Walking Robot Simulation|[Go]({{< relref "/ChapterFour/0800~0899/0874.Walking-Robot-Simulation.md" >}})|Easy||||36.8%|
|
||||
|0875|Koko Eating Bananas|[Go]({{< relref "/ChapterFour/0800~0899/0875.Koko-Eating-Bananas.md" >}})|Medium||||53.9%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.3%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium||||49.3%|
|
||||
|0885|Spiral Matrix III|[Go]({{< relref "/ChapterFour/0800~0899/0885.Spiral-Matrix-III.md" >}})|Medium||||71.5%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||59.6%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||40.5%|
|
||||
|0832|Flipping an Image|[Go]({{< relref "/ChapterFour/0800~0899/0832.Flipping-an-Image.md" >}})|Easy||||79.1%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium||||39.3%|
|
||||
|0850|Rectangle Area II|[Go]({{< relref "/ChapterFour/0800~0899/0850.Rectangle-Area-II.md" >}})|Hard||||52.8%|
|
||||
|0851|Loud and Rich|[Go]({{< relref "/ChapterFour/0800~0899/0851.Loud-and-Rich.md" >}})|Medium||||55.1%|
|
||||
|0852|Peak Index in a Mountain Array|[Go]({{< relref "/ChapterFour/0800~0899/0852.Peak-Index-in-a-Mountain-Array.md" >}})|Easy||||71.4%|
|
||||
|0853|Car Fleet|[Go]({{< relref "/ChapterFour/0800~0899/0853.Car-Fleet.md" >}})|Medium||||47.0%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.9%|
|
||||
|0867|Transpose Matrix|[Go]({{< relref "/ChapterFour/0800~0899/0867.Transpose-Matrix.md" >}})|Easy| O(n)| O(1)||61.4%|
|
||||
|0870|Advantage Shuffle|[Go]({{< relref "/ChapterFour/0800~0899/0870.Advantage-Shuffle.md" >}})|Medium||||51.0%|
|
||||
|0874|Walking Robot Simulation|[Go]({{< relref "/ChapterFour/0800~0899/0874.Walking-Robot-Simulation.md" >}})|Medium||||37.3%|
|
||||
|0875|Koko Eating Bananas|[Go]({{< relref "/ChapterFour/0800~0899/0875.Koko-Eating-Bananas.md" >}})|Medium||||54.2%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.7%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium||||49.6%|
|
||||
|0885|Spiral Matrix III|[Go]({{< relref "/ChapterFour/0800~0899/0885.Spiral-Matrix-III.md" >}})|Medium||||71.9%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||60.0%|
|
||||
|0890|Find and Replace Pattern|[Go]({{< relref "/ChapterFour/0800~0899/0890.Find-and-Replace-Pattern.md" >}})|Medium||||75.5%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard| O(n log n)| O(1)||33.5%|
|
||||
|0892|Surface Area of 3D Shapes|[Go]({{< relref "/ChapterFour/0800~0899/0892.Surface-Area-of-3D-Shapes.md" >}})|Easy||||60.4%|
|
||||
|0896|Monotonic Array|[Go]({{< relref "/ChapterFour/0800~0899/0896.Monotonic-Array.md" >}})|Easy||||57.9%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium||||35.6%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.2%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium| O(n)| O(n)|❤️|32.9%|
|
||||
|0909|Snakes and Ladders|[Go]({{< relref "/ChapterFour/0900~0999/0909.Snakes-and-Ladders.md" >}})|Medium||||39.3%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||31.5%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.8%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.7%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.8%|
|
||||
|0918|Maximum Sum Circular Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0918.Maximum-Sum-Circular-Subarray.md" >}})|Medium||||34.9%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy| O(n)| O(1)||70.7%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.1%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.9%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard| O(n log n)| O(1)||34.1%|
|
||||
|0892|Surface Area of 3D Shapes|[Go]({{< relref "/ChapterFour/0800~0899/0892.Surface-Area-of-3D-Shapes.md" >}})|Easy||||60.9%|
|
||||
|0896|Monotonic Array|[Go]({{< relref "/ChapterFour/0800~0899/0896.Monotonic-Array.md" >}})|Easy||||58.2%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium||||36.2%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.1%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium| O(n)| O(n)|❤️|33.0%|
|
||||
|0909|Snakes and Ladders|[Go]({{< relref "/ChapterFour/0900~0999/0909.Snakes-and-Ladders.md" >}})|Medium||||39.7%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||32.0%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.6%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.6%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.9%|
|
||||
|0918|Maximum Sum Circular Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0918.Maximum-Sum-Circular-Subarray.md" >}})|Medium||||35.8%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy| O(n)| O(1)||70.6%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.3%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.8%|
|
||||
|0927|Three Equal Parts|[Go]({{< relref "/ChapterFour/0900~0999/0927.Three-Equal-Parts.md" >}})|Hard||||39.2%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.6%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium||||46.4%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||74.6%|
|
||||
|0946|Validate Stack Sequences|[Go]({{< relref "/ChapterFour/0900~0999/0946.Validate-Stack-Sequences.md" >}})|Medium||||64.6%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard||||36.6%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.1%|
|
||||
|0961|N-Repeated Element in Size 2N Array|[Go]({{< relref "/ChapterFour/0900~0999/0961.N-Repeated-Element-in-Size-2N-Array.md" >}})|Easy||||75.0%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.8%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium||||47.5%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||75.1%|
|
||||
|0946|Validate Stack Sequences|[Go]({{< relref "/ChapterFour/0900~0999/0946.Validate-Stack-Sequences.md" >}})|Medium||||65.0%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard||||40.4%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.2%|
|
||||
|0961|N-Repeated Element in Size 2N Array|[Go]({{< relref "/ChapterFour/0900~0999/0961.N-Repeated-Element-in-Size-2N-Array.md" >}})|Easy||||75.2%|
|
||||
|0966|Vowel Spellchecker|[Go]({{< relref "/ChapterFour/0900~0999/0966.Vowel-Spellchecker.md" >}})|Medium||||51.7%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium| O(n)| O(1)|❤️|69.1%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium||||65.2%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy||||59.6%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy| O(n)| O(1)||71.4%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium||||46.9%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard||||77.3%|
|
||||
|0985|Sum of Even Numbers After Queries|[Go]({{< relref "/ChapterFour/0900~0999/0985.Sum-of-Even-Numbers-After-Queries.md" >}})|Medium||||60.5%|
|
||||
|0986|Interval List Intersections|[Go]({{< relref "/ChapterFour/0900~0999/0986.Interval-List-Intersections.md" >}})|Medium||||69.1%|
|
||||
|0989|Add to Array-Form of Integer|[Go]({{< relref "/ChapterFour/0900~0999/0989.Add-to-Array-Form-of-Integer.md" >}})|Easy||||45.1%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium||||48.0%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard||||51.9%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium| O(n)| O(1)|❤️|69.3%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium||||65.7%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy||||60.0%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy| O(n)| O(1)||71.5%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium||||47.5%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard||||79.2%|
|
||||
|0985|Sum of Even Numbers After Queries|[Go]({{< relref "/ChapterFour/0900~0999/0985.Sum-of-Even-Numbers-After-Queries.md" >}})|Medium||||60.7%|
|
||||
|0986|Interval List Intersections|[Go]({{< relref "/ChapterFour/0900~0999/0986.Interval-List-Intersections.md" >}})|Medium||||70.4%|
|
||||
|0989|Add to Array-Form of Integer|[Go]({{< relref "/ChapterFour/0900~0999/0989.Add-to-Array-Form-of-Integer.md" >}})|Easy||||45.2%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium||||49.1%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard||||52.8%|
|
||||
|0995|Minimum Number of K Consecutive Bit Flips|[Go]({{< relref "/ChapterFour/0900~0999/0995.Minimum-Number-of-K-Consecutive-Bit-Flips.md" >}})|Hard||||50.4%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||48.7%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.1%|
|
||||
|0999|Available Captures for Rook|[Go]({{< relref "/ChapterFour/0900~0999/0999.Available-Captures-for-Rook.md" >}})|Easy||||67.6%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.8%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium||||61.0%|
|
||||
|1005|Maximize Sum Of Array After K Negations|[Go]({{< relref "/ChapterFour/1000~1099/1005.Maximize-Sum-Of-Array-After-K-Negations.md" >}})|Easy||||52.3%|
|
||||
|1011|Capacity To Ship Packages Within D Days|[Go]({{< relref "/ChapterFour/1000~1099/1011.Capacity-To-Ship-Packages-Within-D-Days.md" >}})|Medium||||60.9%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.5%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium||||61.8%|
|
||||
|1005|Maximize Sum Of Array After K Negations|[Go]({{< relref "/ChapterFour/1000~1099/1005.Maximize-Sum-Of-Array-After-K-Negations.md" >}})|Easy||||51.8%|
|
||||
|1011|Capacity To Ship Packages Within D Days|[Go]({{< relref "/ChapterFour/1000~1099/1011.Capacity-To-Ship-Packages-Within-D-Days.md" >}})|Medium||||62.1%|
|
||||
|1018|Binary Prefix Divisible By 5|[Go]({{< relref "/ChapterFour/1000~1099/1018.Binary-Prefix-Divisible-By-5.md" >}})|Easy||||47.5%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium||||59.0%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.2%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy||||68.6%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.8%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||56.4%|
|
||||
|1049|Last Stone Weight II|[Go]({{< relref "/ChapterFour/1000~1099/1049.Last-Stone-Weight-II.md" >}})|Medium||||48.2%|
|
||||
|1051|Height Checker|[Go]({{< relref "/ChapterFour/1000~1099/1051.Height-Checker.md" >}})|Easy||||73.3%|
|
||||
|1052|Grumpy Bookstore Owner|[Go]({{< relref "/ChapterFour/1000~1099/1052.Grumpy-Bookstore-Owner.md" >}})|Medium||||56.1%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium||||44.8%|
|
||||
|1073|Adding Two Negabinary Numbers|[Go]({{< relref "/ChapterFour/1000~1099/1073.Adding-Two-Negabinary-Numbers.md" >}})|Medium||||34.9%|
|
||||
|1074|Number of Submatrices That Sum to Target|[Go]({{< relref "/ChapterFour/1000~1099/1074.Number-of-Submatrices-That-Sum-to-Target.md" >}})|Hard||||65.5%|
|
||||
|1089|Duplicate Zeros|[Go]({{< relref "/ChapterFour/1000~1099/1089.Duplicate-Zeros.md" >}})|Easy||||51.4%|
|
||||
|1091|Shortest Path in Binary Matrix|[Go]({{< relref "/ChapterFour/1000~1099/1091.Shortest-Path-in-Binary-Matrix.md" >}})|Medium||||40.8%|
|
||||
|1105|Filling Bookcase Shelves|[Go]({{< relref "/ChapterFour/1100~1199/1105.Filling-Bookcase-Shelves.md" >}})|Medium||||57.7%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium||||59.3%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.9%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy||||68.8%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.9%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.2%|
|
||||
|1049|Last Stone Weight II|[Go]({{< relref "/ChapterFour/1000~1099/1049.Last-Stone-Weight-II.md" >}})|Medium||||49.6%|
|
||||
|1051|Height Checker|[Go]({{< relref "/ChapterFour/1000~1099/1051.Height-Checker.md" >}})|Easy||||73.7%|
|
||||
|1052|Grumpy Bookstore Owner|[Go]({{< relref "/ChapterFour/1000~1099/1052.Grumpy-Bookstore-Owner.md" >}})|Medium||||56.4%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium||||45.0%|
|
||||
|1073|Adding Two Negabinary Numbers|[Go]({{< relref "/ChapterFour/1000~1099/1073.Adding-Two-Negabinary-Numbers.md" >}})|Medium||||35.1%|
|
||||
|1074|Number of Submatrices That Sum to Target|[Go]({{< relref "/ChapterFour/1000~1099/1074.Number-of-Submatrices-That-Sum-to-Target.md" >}})|Hard||||66.0%|
|
||||
|1089|Duplicate Zeros|[Go]({{< relref "/ChapterFour/1000~1099/1089.Duplicate-Zeros.md" >}})|Easy||||51.2%|
|
||||
|1091|Shortest Path in Binary Matrix|[Go]({{< relref "/ChapterFour/1000~1099/1091.Shortest-Path-in-Binary-Matrix.md" >}})|Medium||||41.5%|
|
||||
|1105|Filling Bookcase Shelves|[Go]({{< relref "/ChapterFour/1100~1199/1105.Filling-Bookcase-Shelves.md" >}})|Medium||||57.8%|
|
||||
|1122|Relative Sort Array|[Go]({{< relref "/ChapterFour/1100~1199/1122.Relative-Sort-Array.md" >}})|Easy||||67.9%|
|
||||
|1128|Number of Equivalent Domino Pairs|[Go]({{< relref "/ChapterFour/1100~1199/1128.Number-of-Equivalent-Domino-Pairs.md" >}})|Easy||||45.7%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||41.5%|
|
||||
|1128|Number of Equivalent Domino Pairs|[Go]({{< relref "/ChapterFour/1100~1199/1128.Number-of-Equivalent-Domino-Pairs.md" >}})|Easy||||45.9%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||42.0%|
|
||||
|1160|Find Words That Can Be Formed by Characters|[Go]({{< relref "/ChapterFour/1100~1199/1160.Find-Words-That-Can-Be-Formed-by-Characters.md" >}})|Easy||||67.8%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.6%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||40.7%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||46.8%|
|
||||
|1184|Distance Between Bus Stops|[Go]({{< relref "/ChapterFour/1100~1199/1184.Distance-Between-Bus-Stops.md" >}})|Easy||||53.9%|
|
||||
|1200|Minimum Absolute Difference|[Go]({{< relref "/ChapterFour/1200~1299/1200.Minimum-Absolute-Difference.md" >}})|Easy||||67.3%|
|
||||
|1207|Unique Number of Occurrences|[Go]({{< relref "/ChapterFour/1200~1299/1207.Unique-Number-of-Occurrences.md" >}})|Easy||||72.3%|
|
||||
|1217|Minimum Cost to Move Chips to The Same Position|[Go]({{< relref "/ChapterFour/1200~1299/1217.Minimum-Cost-to-Move-Chips-to-The-Same-Position.md" >}})|Easy||||70.6%|
|
||||
|1232|Check If It Is a Straight Line|[Go]({{< relref "/ChapterFour/1200~1299/1232.Check-If-It-Is-a-Straight-Line.md" >}})|Easy||||42.6%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||48.3%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.5%|
|
||||
|1200|Minimum Absolute Difference|[Go]({{< relref "/ChapterFour/1200~1299/1200.Minimum-Absolute-Difference.md" >}})|Easy||||67.7%|
|
||||
|1207|Unique Number of Occurrences|[Go]({{< relref "/ChapterFour/1200~1299/1207.Unique-Number-of-Occurrences.md" >}})|Easy||||72.4%|
|
||||
|1217|Minimum Cost to Move Chips to The Same Position|[Go]({{< relref "/ChapterFour/1200~1299/1217.Minimum-Cost-to-Move-Chips-to-The-Same-Position.md" >}})|Easy||||70.7%|
|
||||
|1232|Check If It Is a Straight Line|[Go]({{< relref "/ChapterFour/1200~1299/1232.Check-If-It-Is-a-Straight-Line.md" >}})|Easy||||42.3%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||50.5%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.7%|
|
||||
|1252|Cells with Odd Values in a Matrix|[Go]({{< relref "/ChapterFour/1200~1299/1252.Cells-with-Odd-Values-in-a-Matrix.md" >}})|Easy||||78.5%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.4%|
|
||||
|1260|Shift 2D Grid|[Go]({{< relref "/ChapterFour/1200~1299/1260.Shift-2D-Grid.md" >}})|Easy||||61.9%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.7%|
|
||||
|1260|Shift 2D Grid|[Go]({{< relref "/ChapterFour/1200~1299/1260.Shift-2D-Grid.md" >}})|Easy||||62.1%|
|
||||
|1266|Minimum Time Visiting All Points|[Go]({{< relref "/ChapterFour/1200~1299/1266.Minimum-Time-Visiting-All-Points.md" >}})|Easy||||79.2%|
|
||||
|1268|Search Suggestions System|[Go]({{< relref "/ChapterFour/1200~1299/1268.Search-Suggestions-System.md" >}})|Medium||||65.6%|
|
||||
|1275|Find Winner on a Tic Tac Toe Game|[Go]({{< relref "/ChapterFour/1200~1299/1275.Find-Winner-on-a-Tic-Tac-Toe-Game.md" >}})|Easy||||53.0%|
|
||||
|1283|Find the Smallest Divisor Given a Threshold|[Go]({{< relref "/ChapterFour/1200~1299/1283.Find-the-Smallest-Divisor-Given-a-Threshold.md" >}})|Medium||||51.1%|
|
||||
|1287|Element Appearing More Than 25% In Sorted Array|[Go]({{< relref "/ChapterFour/1200~1299/1287.Element-Appearing-More-Than-25-In-Sorted-Array.md" >}})|Easy||||59.8%|
|
||||
|1295|Find Numbers with Even Number of Digits|[Go]({{< relref "/ChapterFour/1200~1299/1295.Find-Numbers-with-Even-Number-of-Digits.md" >}})|Easy||||77.9%|
|
||||
|1299|Replace Elements with Greatest Element on Right Side|[Go]({{< relref "/ChapterFour/1200~1299/1299.Replace-Elements-with-Greatest-Element-on-Right-Side.md" >}})|Easy||||74.4%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.5%|
|
||||
|1268|Search Suggestions System|[Go]({{< relref "/ChapterFour/1200~1299/1268.Search-Suggestions-System.md" >}})|Medium||||65.8%|
|
||||
|1275|Find Winner on a Tic Tac Toe Game|[Go]({{< relref "/ChapterFour/1200~1299/1275.Find-Winner-on-a-Tic-Tac-Toe-Game.md" >}})|Easy||||55.7%|
|
||||
|1283|Find the Smallest Divisor Given a Threshold|[Go]({{< relref "/ChapterFour/1200~1299/1283.Find-the-Smallest-Divisor-Given-a-Threshold.md" >}})|Medium||||52.4%|
|
||||
|1287|Element Appearing More Than 25% In Sorted Array|[Go]({{< relref "/ChapterFour/1200~1299/1287.Element-Appearing-More-Than-25-In-Sorted-Array.md" >}})|Easy||||59.6%|
|
||||
|1295|Find Numbers with Even Number of Digits|[Go]({{< relref "/ChapterFour/1200~1299/1295.Find-Numbers-with-Even-Number-of-Digits.md" >}})|Easy||||77.5%|
|
||||
|1299|Replace Elements with Greatest Element on Right Side|[Go]({{< relref "/ChapterFour/1200~1299/1299.Replace-Elements-with-Greatest-Element-on-Right-Side.md" >}})|Easy||||74.3%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.4%|
|
||||
|1304|Find N Unique Integers Sum up to Zero|[Go]({{< relref "/ChapterFour/1300~1399/1304.Find-N-Unique-Integers-Sum-up-to-Zero.md" >}})|Easy||||76.6%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.6%|
|
||||
|1310|XOR Queries of a Subarray|[Go]({{< relref "/ChapterFour/1300~1399/1310.XOR-Queries-of-a-Subarray.md" >}})|Medium||||70.2%|
|
||||
|1313|Decompress Run-Length Encoded List|[Go]({{< relref "/ChapterFour/1300~1399/1313.Decompress-Run-Length-Encoded-List.md" >}})|Easy||||85.6%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.5%|
|
||||
|1310|XOR Queries of a Subarray|[Go]({{< relref "/ChapterFour/1300~1399/1310.XOR-Queries-of-a-Subarray.md" >}})|Medium||||70.8%|
|
||||
|1313|Decompress Run-Length Encoded List|[Go]({{< relref "/ChapterFour/1300~1399/1313.Decompress-Run-Length-Encoded-List.md" >}})|Easy||||85.7%|
|
||||
|1329|Sort the Matrix Diagonally|[Go]({{< relref "/ChapterFour/1300~1399/1329.Sort-the-Matrix-Diagonally.md" >}})|Medium||||81.4%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.0%|
|
||||
|1353|Maximum Number of Events That Can Be Attended|[Go]({{< relref "/ChapterFour/1300~1399/1353.Maximum-Number-of-Events-That-Can-Be-Attended.md" >}})|Medium||||30.7%|
|
||||
|1380|Lucky Numbers in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1380.Lucky-Numbers-in-a-Matrix.md" >}})|Easy||||70.4%|
|
||||
|1383|Maximum Performance of a Team|[Go]({{< relref "/ChapterFour/1300~1399/1383.Maximum-Performance-of-a-Team.md" >}})|Hard||||41.2%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.4%|
|
||||
|1389|Create Target Array in the Given Order|[Go]({{< relref "/ChapterFour/1300~1399/1389.Create-Target-Array-in-the-Given-Order.md" >}})|Easy||||85.2%|
|
||||
|1423|Maximum Points You Can Obtain from Cards|[Go]({{< relref "/ChapterFour/1400~1499/1423.Maximum-Points-You-Can-Obtain-from-Cards.md" >}})|Medium||||48.9%|
|
||||
|1437|Check If All 1's Are at Least Length K Places Away|[Go]({{< relref "/ChapterFour/1400~1499/1437.Check-If-All-1s-Are-at-Least-Length-K-Places-Away.md" >}})|Easy||||60.9%|
|
||||
|1438|Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit|[Go]({{< relref "/ChapterFour/1400~1499/1438.Longest-Continuous-Subarray-With-Absolute-Diff-Less-Than-or-Equal-to-Limit.md" >}})|Medium||||45.0%|
|
||||
|1439|Find the Kth Smallest Sum of a Matrix With Sorted Rows|[Go]({{< relref "/ChapterFour/1400~1499/1439.Find-the-Kth-Smallest-Sum-of-a-Matrix-With-Sorted-Rows.md" >}})|Hard||||61.2%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.2%|
|
||||
|1463|Cherry Pickup II|[Go]({{< relref "/ChapterFour/1400~1499/1463.Cherry-Pickup-II.md" >}})|Hard||||68.5%|
|
||||
|1464|Maximum Product of Two Elements in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1464.Maximum-Product-of-Two-Elements-in-an-Array.md" >}})|Easy||||77.3%|
|
||||
|1465|Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts|[Go]({{< relref "/ChapterFour/1400~1499/1465.Maximum-Area-of-a-Piece-of-Cake-After-Horizontal-and-Vertical-Cuts.md" >}})|Medium||||36.6%|
|
||||
|1470|Shuffle the Array|[Go]({{< relref "/ChapterFour/1400~1499/1470.Shuffle-the-Array.md" >}})|Easy||||88.1%|
|
||||
|1480|Running Sum of 1d Array|[Go]({{< relref "/ChapterFour/1400~1499/1480.Running-Sum-of-1d-Array.md" >}})|Easy||||88.9%|
|
||||
|1482|Minimum Number of Days to Make m Bouquets|[Go]({{< relref "/ChapterFour/1400~1499/1482.Minimum-Number-of-Days-to-Make-m-Bouquets.md" >}})|Medium||||52.8%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.6%|
|
||||
|1539|Kth Missing Positive Number|[Go]({{< relref "/ChapterFour/1500~1599/1539.Kth-Missing-Positive-Number.md" >}})|Easy||||54.7%|
|
||||
|1572|Matrix Diagonal Sum|[Go]({{< relref "/ChapterFour/1500~1599/1572.Matrix-Diagonal-Sum.md" >}})|Easy||||78.2%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||61.2%|
|
||||
|1619|Mean of Array After Removing Some Elements|[Go]({{< relref "/ChapterFour/1600~1699/1619.Mean-of-Array-After-Removing-Some-Elements.md" >}})|Easy||||64.7%|
|
||||
|1629|Slowest Key|[Go]({{< relref "/ChapterFour/1600~1699/1629.Slowest-Key.md" >}})|Easy||||59.1%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||50.4%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.4%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.1%|
|
||||
|1353|Maximum Number of Events That Can Be Attended|[Go]({{< relref "/ChapterFour/1300~1399/1353.Maximum-Number-of-Events-That-Can-Be-Attended.md" >}})|Medium||||32.4%|
|
||||
|1380|Lucky Numbers in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1380.Lucky-Numbers-in-a-Matrix.md" >}})|Easy||||70.7%|
|
||||
|1383|Maximum Performance of a Team|[Go]({{< relref "/ChapterFour/1300~1399/1383.Maximum-Performance-of-a-Team.md" >}})|Hard||||41.3%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.2%|
|
||||
|1389|Create Target Array in the Given Order|[Go]({{< relref "/ChapterFour/1300~1399/1389.Create-Target-Array-in-the-Given-Order.md" >}})|Easy||||85.3%|
|
||||
|1423|Maximum Points You Can Obtain from Cards|[Go]({{< relref "/ChapterFour/1400~1499/1423.Maximum-Points-You-Can-Obtain-from-Cards.md" >}})|Medium||||49.5%|
|
||||
|1437|Check If All 1's Are at Least Length K Places Away|[Go]({{< relref "/ChapterFour/1400~1499/1437.Check-If-All-1s-Are-at-Least-Length-K-Places-Away.md" >}})|Easy||||60.5%|
|
||||
|1438|Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit|[Go]({{< relref "/ChapterFour/1400~1499/1438.Longest-Continuous-Subarray-With-Absolute-Diff-Less-Than-or-Equal-to-Limit.md" >}})|Medium||||45.4%|
|
||||
|1439|Find the Kth Smallest Sum of a Matrix With Sorted Rows|[Go]({{< relref "/ChapterFour/1400~1499/1439.Find-the-Kth-Smallest-Sum-of-a-Matrix-With-Sorted-Rows.md" >}})|Hard||||61.6%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.9%|
|
||||
|1463|Cherry Pickup II|[Go]({{< relref "/ChapterFour/1400~1499/1463.Cherry-Pickup-II.md" >}})|Hard||||68.3%|
|
||||
|1464|Maximum Product of Two Elements in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1464.Maximum-Product-of-Two-Elements-in-an-Array.md" >}})|Easy||||77.6%|
|
||||
|1465|Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts|[Go]({{< relref "/ChapterFour/1400~1499/1465.Maximum-Area-of-a-Piece-of-Cake-After-Horizontal-and-Vertical-Cuts.md" >}})|Medium||||37.0%|
|
||||
|1470|Shuffle the Array|[Go]({{< relref "/ChapterFour/1400~1499/1470.Shuffle-the-Array.md" >}})|Easy||||88.2%|
|
||||
|1480|Running Sum of 1d Array|[Go]({{< relref "/ChapterFour/1400~1499/1480.Running-Sum-of-1d-Array.md" >}})|Easy||||89.2%|
|
||||
|1482|Minimum Number of Days to Make m Bouquets|[Go]({{< relref "/ChapterFour/1400~1499/1482.Minimum-Number-of-Days-to-Make-m-Bouquets.md" >}})|Medium||||54.1%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.7%|
|
||||
|1539|Kth Missing Positive Number|[Go]({{< relref "/ChapterFour/1500~1599/1539.Kth-Missing-Positive-Number.md" >}})|Easy||||55.0%|
|
||||
|1572|Matrix Diagonal Sum|[Go]({{< relref "/ChapterFour/1500~1599/1572.Matrix-Diagonal-Sum.md" >}})|Easy||||78.3%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||60.9%|
|
||||
|1619|Mean of Array After Removing Some Elements|[Go]({{< relref "/ChapterFour/1600~1699/1619.Mean-of-Array-After-Removing-Some-Elements.md" >}})|Easy||||64.5%|
|
||||
|1629|Slowest Key|[Go]({{< relref "/ChapterFour/1600~1699/1629.Slowest-Key.md" >}})|Easy||||59.8%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||51.2%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.9%|
|
||||
|1640|Check Array Formation Through Concatenation|[Go]({{< relref "/ChapterFour/1600~1699/1640.Check-Array-Formation-Through-Concatenation.md" >}})|Easy||||55.5%|
|
||||
|1642|Furthest Building You Can Reach|[Go]({{< relref "/ChapterFour/1600~1699/1642.Furthest-Building-You-Can-Reach.md" >}})|Medium||||43.5%|
|
||||
|1646|Get Maximum in Generated Array|[Go]({{< relref "/ChapterFour/1600~1699/1646.Get-Maximum-in-Generated-Array.md" >}})|Easy||||52.1%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.3%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.0%|
|
||||
|1642|Furthest Building You Can Reach|[Go]({{< relref "/ChapterFour/1600~1699/1642.Furthest-Building-You-Can-Reach.md" >}})|Medium||||43.9%|
|
||||
|1646|Get Maximum in Generated Array|[Go]({{< relref "/ChapterFour/1600~1699/1646.Get-Maximum-in-Generated-Array.md" >}})|Easy||||51.3%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.5%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.1%|
|
||||
|1652|Defuse the Bomb|[Go]({{< relref "/ChapterFour/1600~1699/1652.Defuse-the-Bomb.md" >}})|Easy||||60.5%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||24.9%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.4%|
|
||||
|1656|Design an Ordered Stream|[Go]({{< relref "/ChapterFour/1600~1699/1656.Design-an-Ordered-Stream.md" >}})|Easy||||82.4%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||25.7%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|
||||
|1656|Design an Ordered Stream|[Go]({{< relref "/ChapterFour/1600~1699/1656.Design-an-Ordered-Stream.md" >}})|Easy||||82.7%|
|
||||
|1658|Minimum Operations to Reduce X to Zero|[Go]({{< relref "/ChapterFour/1600~1699/1658.Minimum-Operations-to-Reduce-X-to-Zero.md" >}})|Medium||||33.3%|
|
||||
|1662|Check If Two String Arrays are Equivalent|[Go]({{< relref "/ChapterFour/1600~1699/1662.Check-If-Two-String-Arrays-are-Equivalent.md" >}})|Easy||||82.0%|
|
||||
|1664|Ways to Make a Fair Array|[Go]({{< relref "/ChapterFour/1600~1699/1664.Ways-to-Make-a-Fair-Array.md" >}})|Medium||||62.1%|
|
||||
|1665|Minimum Initial Energy to Finish Tasks|[Go]({{< relref "/ChapterFour/1600~1699/1665.Minimum-Initial-Energy-to-Finish-Tasks.md" >}})|Hard||||55.1%|
|
||||
|1670|Design Front Middle Back Queue|[Go]({{< relref "/ChapterFour/1600~1699/1670.Design-Front-Middle-Back-Queue.md" >}})|Medium||||54.7%|
|
||||
|1664|Ways to Make a Fair Array|[Go]({{< relref "/ChapterFour/1600~1699/1664.Ways-to-Make-a-Fair-Array.md" >}})|Medium||||62.4%|
|
||||
|1665|Minimum Initial Energy to Finish Tasks|[Go]({{< relref "/ChapterFour/1600~1699/1665.Minimum-Initial-Energy-to-Finish-Tasks.md" >}})|Hard||||55.3%|
|
||||
|1670|Design Front Middle Back Queue|[Go]({{< relref "/ChapterFour/1600~1699/1670.Design-Front-Middle-Back-Queue.md" >}})|Medium||||55.0%|
|
||||
|1672|Richest Customer Wealth|[Go]({{< relref "/ChapterFour/1600~1699/1672.Richest-Customer-Wealth.md" >}})|Easy||||88.2%|
|
||||
|1673|Find the Most Competitive Subsequence|[Go]({{< relref "/ChapterFour/1600~1699/1673.Find-the-Most-Competitive-Subsequence.md" >}})|Medium||||46.6%|
|
||||
|1674|Minimum Moves to Make Array Complementary|[Go]({{< relref "/ChapterFour/1600~1699/1674.Minimum-Moves-to-Make-Array-Complementary.md" >}})|Medium||||36.6%|
|
||||
|1675|Minimize Deviation in Array|[Go]({{< relref "/ChapterFour/1600~1699/1675.Minimize-Deviation-in-Array.md" >}})|Hard||||48.1%|
|
||||
|1673|Find the Most Competitive Subsequence|[Go]({{< relref "/ChapterFour/1600~1699/1673.Find-the-Most-Competitive-Subsequence.md" >}})|Medium||||47.4%|
|
||||
|1674|Minimum Moves to Make Array Complementary|[Go]({{< relref "/ChapterFour/1600~1699/1674.Minimum-Moves-to-Make-Array-Complementary.md" >}})|Medium||||36.9%|
|
||||
|1675|Minimize Deviation in Array|[Go]({{< relref "/ChapterFour/1600~1699/1675.Minimize-Deviation-in-Array.md" >}})|Hard||||48.2%|
|
||||
|1679|Max Number of K-Sum Pairs|[Go]({{< relref "/ChapterFour/1600~1699/1679.Max-Number-of-K-Sum-Pairs.md" >}})|Medium||||53.5%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.1%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.6%|
|
||||
|1684|Count the Number of Consistent Strings|[Go]({{< relref "/ChapterFour/1600~1699/1684.Count-the-Number-of-Consistent-Strings.md" >}})|Easy||||81.7%|
|
||||
|1685|Sum of Absolute Differences in a Sorted Array|[Go]({{< relref "/ChapterFour/1600~1699/1685.Sum-of-Absolute-Differences-in-a-Sorted-Array.md" >}})|Medium||||63.8%|
|
||||
|1685|Sum of Absolute Differences in a Sorted Array|[Go]({{< relref "/ChapterFour/1600~1699/1685.Sum-of-Absolute-Differences-in-a-Sorted-Array.md" >}})|Medium||||64.6%|
|
||||
|1690|Stone Game VII|[Go]({{< relref "/ChapterFour/1600~1699/1690.Stone-Game-VII.md" >}})|Medium||||58.8%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||51.1%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.3%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||41.9%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||52.7%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.2%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||42.3%|
|
||||
|1700|Number of Students Unable to Eat Lunch|[Go]({{< relref "/ChapterFour/1700~1799/1700.Number-of-Students-Unable-to-Eat-Lunch.md" >}})|Easy||||67.7%|
|
||||
|1710|Maximum Units on a Truck|[Go]({{< relref "/ChapterFour/1700~1799/1710.Maximum-Units-on-a-Truck.md" >}})|Easy||||72.4%|
|
||||
|1710|Maximum Units on a Truck|[Go]({{< relref "/ChapterFour/1700~1799/1710.Maximum-Units-on-a-Truck.md" >}})|Easy||||72.1%|
|
||||
|1720|Decode XORed Array|[Go]({{< relref "/ChapterFour/1700~1799/1720.Decode-XORed-Array.md" >}})|Easy||||85.7%|
|
||||
|1725|Number Of Rectangles That Can Form The Largest Square|[Go]({{< relref "/ChapterFour/1700~1799/1725.Number-Of-Rectangles-That-Can-Form-The-Largest-Square.md" >}})|Easy||||78.5%|
|
||||
|1732|Find the Highest Altitude|[Go]({{< relref "/ChapterFour/1700~1799/1732.Find-the-Highest-Altitude.md" >}})|Easy||||79.2%|
|
||||
|1734|Decode XORed Permutation|[Go]({{< relref "/ChapterFour/1700~1799/1734.Decode-XORed-Permutation.md" >}})|Medium||||57.9%|
|
||||
|1738|Find Kth Largest XOR Coordinate Value|[Go]({{< relref "/ChapterFour/1700~1799/1738.Find-Kth-Largest-XOR-Coordinate-Value.md" >}})|Medium||||62.7%|
|
||||
|1744|Can You Eat Your Favorite Candy on Your Favorite Day?|[Go]({{< relref "/ChapterFour/1700~1799/1744.Can-You-Eat-Your-Favorite-Candy-on-Your-Favorite-Day.md" >}})|Medium||||31.4%|
|
||||
|1748|Sum of Unique Elements|[Go]({{< relref "/ChapterFour/1700~1799/1748.Sum-of-Unique-Elements.md" >}})|Easy||||74.8%|
|
||||
|1752|Check if Array Is Sorted and Rotated|[Go]({{< relref "/ChapterFour/1700~1799/1752.Check-if-Array-Is-Sorted-and-Rotated.md" >}})|Easy||||44.8%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.4%|
|
||||
|1846|Maximum Element After Decreasing and Rearranging|[Go]({{< relref "/ChapterFour/1800~1899/1846.Maximum-Element-After-Decreasing-and-Rearranging.md" >}})|Medium||||55.4%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||78.8%|
|
||||
|1725|Number Of Rectangles That Can Form The Largest Square|[Go]({{< relref "/ChapterFour/1700~1799/1725.Number-Of-Rectangles-That-Can-Form-The-Largest-Square.md" >}})|Easy||||78.7%|
|
||||
|1732|Find the Highest Altitude|[Go]({{< relref "/ChapterFour/1700~1799/1732.Find-the-Highest-Altitude.md" >}})|Easy||||79.0%|
|
||||
|1734|Decode XORed Permutation|[Go]({{< relref "/ChapterFour/1700~1799/1734.Decode-XORed-Permutation.md" >}})|Medium||||59.0%|
|
||||
|1738|Find Kth Largest XOR Coordinate Value|[Go]({{< relref "/ChapterFour/1700~1799/1738.Find-Kth-Largest-XOR-Coordinate-Value.md" >}})|Medium||||62.6%|
|
||||
|1744|Can You Eat Your Favorite Candy on Your Favorite Day?|[Go]({{< relref "/ChapterFour/1700~1799/1744.Can-You-Eat-Your-Favorite-Candy-on-Your-Favorite-Day.md" >}})|Medium||||31.8%|
|
||||
|1748|Sum of Unique Elements|[Go]({{< relref "/ChapterFour/1700~1799/1748.Sum-of-Unique-Elements.md" >}})|Easy||||75.1%|
|
||||
|1752|Check if Array Is Sorted and Rotated|[Go]({{< relref "/ChapterFour/1700~1799/1752.Check-if-Array-Is-Sorted-and-Rotated.md" >}})|Easy||||45.2%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.3%|
|
||||
|1846|Maximum Element After Decreasing and Rearranging|[Go]({{< relref "/ChapterFour/1800~1899/1846.Maximum-Element-After-Decreasing-and-Rearranging.md" >}})|Medium||||56.0%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||80.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -100,43 +100,44 @@ func updateMatrix_BFS(matrix [][]int) [][]int {
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium| O(log n)| O(1)||51.1%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium| O(log n)| O(1)||67.4%|
|
||||
|0037|Sudoku Solver|[Go]({{< relref "/ChapterFour/0001~0099/0037.Sudoku-Solver.md" >}})|Hard| O(n^2)| O(n^2)|❤️|49.3%|
|
||||
|0039|Combination Sum|[Go]({{< relref "/ChapterFour/0001~0099/0039.Combination-Sum.md" >}})|Medium| O(n log n)| O(n)||61.3%|
|
||||
|0040|Combination Sum II|[Go]({{< relref "/ChapterFour/0001~0099/0040.Combination-Sum-II.md" >}})|Medium| O(n log n)| O(n)||51.2%|
|
||||
|0046|Permutations|[Go]({{< relref "/ChapterFour/0001~0099/0046.Permutations.md" >}})|Medium| O(n)| O(n)|❤️|68.7%|
|
||||
|0047|Permutations II|[Go]({{< relref "/ChapterFour/0001~0099/0047.Permutations-II.md" >}})|Medium| O(n^2)| O(n)|❤️|51.1%|
|
||||
|0051|N-Queens|[Go]({{< relref "/ChapterFour/0001~0099/0051.N-Queens.md" >}})|Hard| O(n!)| O(n)|❤️|53.3%|
|
||||
|0052|N-Queens II|[Go]({{< relref "/ChapterFour/0001~0099/0052.N-Queens-II.md" >}})|Hard| O(n!)| O(n)|❤️|63.4%|
|
||||
|0077|Combinations|[Go]({{< relref "/ChapterFour/0001~0099/0077.Combinations.md" >}})|Medium| O(n)| O(n)|❤️|59.6%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|67.3%|
|
||||
|0079|Word Search|[Go]({{< relref "/ChapterFour/0001~0099/0079.Word-Search.md" >}})|Medium| O(n^2)| O(n^2)|❤️|38.1%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium| O(n)| O(1)||53.7%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium| O(n^2)| O(n)|❤️|50.7%|
|
||||
|0093|Restore IP Addresses|[Go]({{< relref "/ChapterFour/0001~0099/0093.Restore-IP-Addresses.md" >}})|Medium| O(n)| O(n)|❤️|39.0%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||44.6%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium||||51.5%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|25.2%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium| O(n)| O(n^2)|❤️|54.6%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard| O(n^2)| O(n^2)|❤️|37.9%|
|
||||
|0216|Combination Sum III|[Go]({{< relref "/ChapterFour/0200~0299/0216.Combination-Sum-III.md" >}})|Medium| O(n)| O(1)|❤️|61.8%|
|
||||
|0306|Additive Number|[Go]({{< relref "/ChapterFour/0300~0399/0306.Additive-Number.md" >}})|Medium| O(n^2)| O(1)|❤️|30.0%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||49.6%|
|
||||
|0401|Binary Watch|[Go]({{< relref "/ChapterFour/0400~0499/0401.Binary-Watch.md" >}})|Easy| O(1)| O(1)||49.3%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.0%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||48.9%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.4%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium| O(n^2)| O(1)|❤️|62.6%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||53.9%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium| O(n)| O(n)||69.5%|
|
||||
|0816|Ambiguous Coordinates|[Go]({{< relref "/ChapterFour/0800~0899/0816.Ambiguous-Coordinates.md" >}})|Medium||||55.7%|
|
||||
|0842|Split Array into Fibonacci Sequence|[Go]({{< relref "/ChapterFour/0800~0899/0842.Split-Array-into-Fibonacci-Sequence.md" >}})|Medium| O(n^2)| O(1)|❤️|37.2%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard| O(n log n)| O(n)||77.3%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||48.7%|
|
||||
|1079|Letter Tile Possibilities|[Go]({{< relref "/ChapterFour/1000~1099/1079.Letter-Tile-Possibilities.md" >}})|Medium| O(n^2)| O(1)|❤️|76.2%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.5%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.4%|
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium| O(log n)| O(1)||52.2%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium| O(log n)| O(1)||68.5%|
|
||||
|0037|Sudoku Solver|[Go]({{< relref "/ChapterFour/0001~0099/0037.Sudoku-Solver.md" >}})|Hard| O(n^2)| O(n^2)|❤️|51.8%|
|
||||
|0039|Combination Sum|[Go]({{< relref "/ChapterFour/0001~0099/0039.Combination-Sum.md" >}})|Medium| O(n log n)| O(n)||62.8%|
|
||||
|0040|Combination Sum II|[Go]({{< relref "/ChapterFour/0001~0099/0040.Combination-Sum-II.md" >}})|Medium| O(n log n)| O(n)||51.7%|
|
||||
|0046|Permutations|[Go]({{< relref "/ChapterFour/0001~0099/0046.Permutations.md" >}})|Medium| O(n)| O(n)|❤️|70.2%|
|
||||
|0047|Permutations II|[Go]({{< relref "/ChapterFour/0001~0099/0047.Permutations-II.md" >}})|Medium| O(n^2)| O(n)|❤️|52.4%|
|
||||
|0051|N-Queens|[Go]({{< relref "/ChapterFour/0001~0099/0051.N-Queens.md" >}})|Hard| O(n!)| O(n)|❤️|54.9%|
|
||||
|0052|N-Queens II|[Go]({{< relref "/ChapterFour/0001~0099/0052.N-Queens-II.md" >}})|Hard| O(n!)| O(n)|❤️|64.5%|
|
||||
|0077|Combinations|[Go]({{< relref "/ChapterFour/0001~0099/0077.Combinations.md" >}})|Medium| O(n)| O(n)|❤️|61.4%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|68.8%|
|
||||
|0079|Word Search|[Go]({{< relref "/ChapterFour/0001~0099/0079.Word-Search.md" >}})|Medium| O(n^2)| O(n^2)|❤️|39.0%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium| O(n)| O(1)||54.3%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium| O(n^2)| O(n)|❤️|51.7%|
|
||||
|0093|Restore IP Addresses|[Go]({{< relref "/ChapterFour/0001~0099/0093.Restore-IP-Addresses.md" >}})|Medium| O(n)| O(n)|❤️|40.2%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||47.6%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium||||52.6%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|26.0%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium| O(n)| O(n^2)|❤️|56.1%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard| O(n^2)| O(n^2)|❤️|38.4%|
|
||||
|0216|Combination Sum III|[Go]({{< relref "/ChapterFour/0200~0299/0216.Combination-Sum-III.md" >}})|Medium| O(n)| O(1)|❤️|62.8%|
|
||||
|0301|Remove Invalid Parentheses|[Go]({{< relref "/ChapterFour/0300~0399/0301.Remove-Invalid-Parentheses.md" >}})|Hard||||46.1%|
|
||||
|0306|Additive Number|[Go]({{< relref "/ChapterFour/0300~0399/0306.Additive-Number.md" >}})|Medium| O(n^2)| O(1)|❤️|30.2%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||50.0%|
|
||||
|0401|Binary Watch|[Go]({{< relref "/ChapterFour/0400~0499/0401.Binary-Watch.md" >}})|Easy| O(1)| O(1)||49.8%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.3%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||49.7%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.3%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium| O(n^2)| O(1)|❤️|63.6%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||54.2%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium| O(n)| O(n)||70.7%|
|
||||
|0816|Ambiguous Coordinates|[Go]({{< relref "/ChapterFour/0800~0899/0816.Ambiguous-Coordinates.md" >}})|Medium||||55.8%|
|
||||
|0842|Split Array into Fibonacci Sequence|[Go]({{< relref "/ChapterFour/0800~0899/0842.Split-Array-into-Fibonacci-Sequence.md" >}})|Medium| O(n^2)| O(1)|❤️|37.4%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard| O(n log n)| O(n)||79.2%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.1%|
|
||||
|1079|Letter Tile Possibilities|[Go]({{< relref "/ChapterFour/1000~1099/1079.Letter-Tile-Possibilities.md" >}})|Medium| O(n^2)| O(1)|❤️|76.1%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.7%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -10,13 +10,13 @@ weight: 19
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard||||37.4%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium||||37.9%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.0%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.2%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||28.2%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||41.5%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.0%|
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard||||37.9%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium||||38.3%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.1%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.0%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||29.0%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||42.0%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -131,83 +131,84 @@ func peakIndexInMountainArray(A []int) int {
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0004|Median of Two Sorted Arrays|[Go]({{< relref "/ChapterFour/0001~0099/0004.Median-of-Two-Sorted-Arrays.md" >}})|Hard||||32.4%|
|
||||
|0033|Search in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0033.Search-in-Rotated-Sorted-Array.md" >}})|Medium||||36.6%|
|
||||
|0034|Find First and Last Position of Element in Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0034.Find-First-and-Last-Position-of-Element-in-Sorted-Array.md" >}})|Medium||||38.4%|
|
||||
|0004|Median of Two Sorted Arrays|[Go]({{< relref "/ChapterFour/0001~0099/0004.Median-of-Two-Sorted-Arrays.md" >}})|Hard||||33.1%|
|
||||
|0033|Search in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0033.Search-in-Rotated-Sorted-Array.md" >}})|Medium||||37.1%|
|
||||
|0034|Find First and Last Position of Element in Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0034.Find-First-and-Last-Position-of-Element-in-Sorted-Array.md" >}})|Medium||||39.1%|
|
||||
|0035|Search Insert Position|[Go]({{< relref "/ChapterFour/0001~0099/0035.Search-Insert-Position.md" >}})|Easy||||42.7%|
|
||||
|0069|Sqrt(x)|[Go]({{< relref "/ChapterFour/0001~0099/0069.Sqrtx.md" >}})|Easy| O(log n)| O(1)||35.9%|
|
||||
|0074|Search a 2D Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0074.Search-a-2D-Matrix.md" >}})|Medium||||39.4%|
|
||||
|0081|Search in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0081.Search-in-Rotated-Sorted-Array-II.md" >}})|Medium||||34.0%|
|
||||
|0153|Find Minimum in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0100~0199/0153.Find-Minimum-in-Rotated-Sorted-Array.md" >}})|Medium||||46.8%|
|
||||
|0154|Find Minimum in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0100~0199/0154.Find-Minimum-in-Rotated-Sorted-Array-II.md" >}})|Hard||||42.3%|
|
||||
|0162|Find Peak Element|[Go]({{< relref "/ChapterFour/0100~0199/0162.Find-Peak-Element.md" >}})|Medium||||44.6%|
|
||||
|0167|Two Sum II - Input array is sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-array-is-sorted.md" >}})|Easy| O(n)| O(1)||56.5%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium| O(n)| O(1)||40.8%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium| O(n)| O(1)||51.3%|
|
||||
|0240|Search a 2D Matrix II|[Go]({{< relref "/ChapterFour/0200~0299/0240.Search-a-2D-Matrix-II.md" >}})|Medium||||46.2%|
|
||||
|0275|H-Index II|[Go]({{< relref "/ChapterFour/0200~0299/0275.H-Index-II.md" >}})|Medium||||36.6%|
|
||||
|0278|First Bad Version|[Go]({{< relref "/ChapterFour/0200~0299/0278.First-Bad-Version.md" >}})|Easy||||38.7%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.1%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium| O(n log n)| O(n)||46.4%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.0%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.2%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||66.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||52.7%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||38.7%|
|
||||
|0367|Valid Perfect Square|[Go]({{< relref "/ChapterFour/0300~0399/0367.Valid-Perfect-Square.md" >}})|Easy||||42.5%|
|
||||
|0374|Guess Number Higher or Lower|[Go]({{< relref "/ChapterFour/0300~0399/0374.Guess-Number-Higher-or-Lower.md" >}})|Easy||||46.0%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.0%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||47.7%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||48.8%|
|
||||
|0441|Arranging Coins|[Go]({{< relref "/ChapterFour/0400~0499/0441.Arranging-Coins.md" >}})|Easy||||43.0%|
|
||||
|0069|Sqrt(x)|[Go]({{< relref "/ChapterFour/0001~0099/0069.Sqrtx.md" >}})|Easy| O(log n)| O(1)||36.0%|
|
||||
|0074|Search a 2D Matrix|[Go]({{< relref "/ChapterFour/0001~0099/0074.Search-a-2D-Matrix.md" >}})|Medium||||41.1%|
|
||||
|0081|Search in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0081.Search-in-Rotated-Sorted-Array-II.md" >}})|Medium||||34.2%|
|
||||
|0153|Find Minimum in Rotated Sorted Array|[Go]({{< relref "/ChapterFour/0100~0199/0153.Find-Minimum-in-Rotated-Sorted-Array.md" >}})|Medium||||47.5%|
|
||||
|0154|Find Minimum in Rotated Sorted Array II|[Go]({{< relref "/ChapterFour/0100~0199/0154.Find-Minimum-in-Rotated-Sorted-Array-II.md" >}})|Hard||||43.2%|
|
||||
|0162|Find Peak Element|[Go]({{< relref "/ChapterFour/0100~0199/0162.Find-Peak-Element.md" >}})|Medium||||45.1%|
|
||||
|0167|Two Sum II - Input Array Is Sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-Array-Is-Sorted.md" >}})|Easy| O(n)| O(1)||57.5%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium| O(n)| O(1)||41.8%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium| O(n)| O(1)||53.6%|
|
||||
|0240|Search a 2D Matrix II|[Go]({{< relref "/ChapterFour/0200~0299/0240.Search-a-2D-Matrix-II.md" >}})|Medium||||47.1%|
|
||||
|0275|H-Index II|[Go]({{< relref "/ChapterFour/0200~0299/0275.H-Index-II.md" >}})|Medium||||36.7%|
|
||||
|0278|First Bad Version|[Go]({{< relref "/ChapterFour/0200~0299/0278.First-Bad-Version.md" >}})|Easy||||40.1%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.3%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium| O(n log n)| O(n)||47.6%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard||||42.1%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard||||36.0%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||67.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||53.9%|
|
||||
|0352|Data Stream as Disjoint Intervals|[Go]({{< relref "/ChapterFour/0300~0399/0352.Data-Stream-as-Disjoint-Intervals.md" >}})|Hard||||49.8%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||39.3%|
|
||||
|0367|Valid Perfect Square|[Go]({{< relref "/ChapterFour/0300~0399/0367.Valid-Perfect-Square.md" >}})|Easy||||42.7%|
|
||||
|0374|Guess Number Higher or Lower|[Go]({{< relref "/ChapterFour/0300~0399/0374.Guess-Number-Higher-or-Lower.md" >}})|Easy||||47.6%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.6%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||48.9%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||49.0%|
|
||||
|0441|Arranging Coins|[Go]({{< relref "/ChapterFour/0400~0499/0441.Arranging-Coins.md" >}})|Easy||||44.7%|
|
||||
|0456|132 Pattern|[Go]({{< relref "/ChapterFour/0400~0499/0456.132-Pattern.md" >}})|Medium||||30.7%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.2%|
|
||||
|0483|Smallest Good Base|[Go]({{< relref "/ChapterFour/0400~0499/0483.Smallest-Good-Base.md" >}})|Hard||||36.9%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||28.2%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.6%|
|
||||
|0483|Smallest Good Base|[Go]({{< relref "/ChapterFour/0400~0499/0483.Smallest-Good-Base.md" >}})|Hard||||37.4%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard||||29.0%|
|
||||
|0497|Random Point in Non-overlapping Rectangles|[Go]({{< relref "/ChapterFour/0400~0499/0497.Random-Point-in-Non-overlapping-Rectangles.md" >}})|Medium||||39.1%|
|
||||
|0528|Random Pick with Weight|[Go]({{< relref "/ChapterFour/0500~0599/0528.Random-Pick-with-Weight.md" >}})|Medium||||45.2%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||36.3%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.0%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||33.0%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.3%|
|
||||
|0668|Kth Smallest Number in Multiplication Table|[Go]({{< relref "/ChapterFour/0600~0699/0668.Kth-Smallest-Number-in-Multiplication-Table.md" >}})|Hard||||48.5%|
|
||||
|0704|Binary Search|[Go]({{< relref "/ChapterFour/0700~0799/0704.Binary-Search.md" >}})|Easy||||54.9%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.3%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.1%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.2%|
|
||||
|0528|Random Pick with Weight|[Go]({{< relref "/ChapterFour/0500~0599/0528.Random-Pick-with-Weight.md" >}})|Medium||||45.7%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||37.1%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.3%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||34.7%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.8%|
|
||||
|0668|Kth Smallest Number in Multiplication Table|[Go]({{< relref "/ChapterFour/0600~0699/0668.Kth-Smallest-Number-in-Multiplication-Table.md" >}})|Hard||||50.5%|
|
||||
|0704|Binary Search|[Go]({{< relref "/ChapterFour/0700~0799/0704.Binary-Search.md" >}})|Easy||||54.6%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.1%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.3%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.9%|
|
||||
|0744|Find Smallest Letter Greater Than Target|[Go]({{< relref "/ChapterFour/0700~0799/0744.Find-Smallest-Letter-Greater-Than-Target.md" >}})|Easy||||45.8%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||57.8%|
|
||||
|0786|K-th Smallest Prime Fraction|[Go]({{< relref "/ChapterFour/0700~0799/0786.K-th-Smallest-Prime-Fraction.md" >}})|Hard||||45.6%|
|
||||
|0793|Preimage Size of Factorial Zeroes Function|[Go]({{< relref "/ChapterFour/0700~0799/0793.Preimage-Size-of-Factorial-Zeroes-Function.md" >}})|Hard||||40.8%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||39.8%|
|
||||
|0852|Peak Index in a Mountain Array|[Go]({{< relref "/ChapterFour/0800~0899/0852.Peak-Index-in-a-Mountain-Array.md" >}})|Easy||||71.5%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.6%|
|
||||
|0875|Koko Eating Bananas|[Go]({{< relref "/ChapterFour/0800~0899/0875.Koko-Eating-Bananas.md" >}})|Medium||||53.9%|
|
||||
|0878|Nth Magical Number|[Go]({{< relref "/ChapterFour/0800~0899/0878.Nth-Magical-Number.md" >}})|Hard||||29.3%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||26.9%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||59.6%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.8%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||54.0%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium||||61.0%|
|
||||
|1011|Capacity To Ship Packages Within D Days|[Go]({{< relref "/ChapterFour/1000~1099/1011.Capacity-To-Ship-Packages-Within-D-Days.md" >}})|Medium||||60.9%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||41.5%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.6%|
|
||||
|1201|Ugly Number III|[Go]({{< relref "/ChapterFour/1200~1299/1201.Ugly-Number-III.md" >}})|Medium||||26.9%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.0%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||48.3%|
|
||||
|1283|Find the Smallest Divisor Given a Threshold|[Go]({{< relref "/ChapterFour/1200~1299/1283.Find-the-Smallest-Divisor-Given-a-Threshold.md" >}})|Medium||||51.1%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.5%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.0%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.4%|
|
||||
|1439|Find the Kth Smallest Sum of a Matrix With Sorted Rows|[Go]({{< relref "/ChapterFour/1400~1499/1439.Find-the-Kth-Smallest-Sum-of-a-Matrix-With-Sorted-Rows.md" >}})|Hard||||61.2%|
|
||||
|1482|Minimum Number of Days to Make m Bouquets|[Go]({{< relref "/ChapterFour/1400~1499/1482.Minimum-Number-of-Days-to-Make-m-Bouquets.md" >}})|Medium||||52.8%|
|
||||
|1539|Kth Missing Positive Number|[Go]({{< relref "/ChapterFour/1500~1599/1539.Kth-Missing-Positive-Number.md" >}})|Easy||||54.7%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||61.2%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||50.4%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.3%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.0%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||58.1%|
|
||||
|0786|K-th Smallest Prime Fraction|[Go]({{< relref "/ChapterFour/0700~0799/0786.K-th-Smallest-Prime-Fraction.md" >}})|Hard||||47.1%|
|
||||
|0793|Preimage Size of Factorial Zeroes Function|[Go]({{< relref "/ChapterFour/0700~0799/0793.Preimage-Size-of-Factorial-Zeroes-Function.md" >}})|Hard||||41.1%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||40.5%|
|
||||
|0852|Peak Index in a Mountain Array|[Go]({{< relref "/ChapterFour/0800~0899/0852.Peak-Index-in-a-Mountain-Array.md" >}})|Easy||||71.4%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.9%|
|
||||
|0875|Koko Eating Bananas|[Go]({{< relref "/ChapterFour/0800~0899/0875.Koko-Eating-Bananas.md" >}})|Medium||||54.2%|
|
||||
|0878|Nth Magical Number|[Go]({{< relref "/ChapterFour/0800~0899/0878.Nth-Magical-Number.md" >}})|Hard||||29.6%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||27.0%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||60.0%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.6%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||53.1%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium||||61.8%|
|
||||
|1011|Capacity To Ship Packages Within D Days|[Go]({{< relref "/ChapterFour/1000~1099/1011.Capacity-To-Ship-Packages-Within-D-Days.md" >}})|Medium||||62.1%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard||||42.0%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|
||||
|1201|Ugly Number III|[Go]({{< relref "/ChapterFour/1200~1299/1201.Ugly-Number-III.md" >}})|Medium||||27.4%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.6%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||50.5%|
|
||||
|1283|Find the Smallest Divisor Given a Threshold|[Go]({{< relref "/ChapterFour/1200~1299/1283.Find-the-Smallest-Divisor-Given-a-Threshold.md" >}})|Medium||||52.4%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.4%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.1%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.2%|
|
||||
|1439|Find the Kth Smallest Sum of a Matrix With Sorted Rows|[Go]({{< relref "/ChapterFour/1400~1499/1439.Find-the-Kth-Smallest-Sum-of-a-Matrix-With-Sorted-Rows.md" >}})|Hard||||61.6%|
|
||||
|1482|Minimum Number of Days to Make m Bouquets|[Go]({{< relref "/ChapterFour/1400~1499/1482.Minimum-Number-of-Days-to-Make-m-Bouquets.md" >}})|Medium||||54.1%|
|
||||
|1539|Kth Missing Positive Number|[Go]({{< relref "/ChapterFour/1500~1599/1539.Kth-Missing-Positive-Number.md" >}})|Easy||||55.0%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||60.9%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||51.2%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.5%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.1%|
|
||||
|1658|Minimum Operations to Reduce X to Zero|[Go]({{< relref "/ChapterFour/1600~1699/1658.Minimum-Operations-to-Reduce-X-to-Zero.md" >}})|Medium||||33.3%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.4%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.3%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -45,62 +45,62 @@ X & ~X = 0
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0029|Divide Two Integers|[Go]({{< relref "/ChapterFour/0001~0099/0029.Divide-Two-Integers.md" >}})|Medium||||17.0%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||48.3%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|67.3%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium||||53.7%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium||||50.7%|
|
||||
|0136|Single Number|[Go]({{< relref "/ChapterFour/0100~0199/0136.Single-Number.md" >}})|Easy| O(n)| O(1)||67.3%|
|
||||
|0137|Single Number II|[Go]({{< relref "/ChapterFour/0100~0199/0137.Single-Number-II.md" >}})|Medium| O(n)| O(1)|❤️|54.9%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium| O(n)| O(1)||42.4%|
|
||||
|0190|Reverse Bits|[Go]({{< relref "/ChapterFour/0100~0199/0190.Reverse-Bits.md" >}})|Easy| O(n)| O(1)|❤️|44.3%|
|
||||
|0191|Number of 1 Bits|[Go]({{< relref "/ChapterFour/0100~0199/0191.Number-of-1-Bits.md" >}})|Easy| O(n)| O(1)||55.8%|
|
||||
|0201|Bitwise AND of Numbers Range|[Go]({{< relref "/ChapterFour/0200~0299/0201.Bitwise-AND-of-Numbers-Range.md" >}})|Medium| O(n)| O(1)|❤️|39.9%|
|
||||
|0231|Power of Two|[Go]({{< relref "/ChapterFour/0200~0299/0231.Power-of-Two.md" >}})|Easy| O(1)| O(1)||43.8%|
|
||||
|0260|Single Number III|[Go]({{< relref "/ChapterFour/0200~0299/0260.Single-Number-III.md" >}})|Medium| O(n)| O(1)|❤️|65.7%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy| O(n)| O(1)||56.7%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium||||58.1%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium| O(n)| O(1)||55.6%|
|
||||
|0338|Counting Bits|[Go]({{< relref "/ChapterFour/0300~0399/0338.Counting-Bits.md" >}})|Easy| O(n)| O(n)||71.4%|
|
||||
|0342|Power of Four|[Go]({{< relref "/ChapterFour/0300~0399/0342.Power-of-Four.md" >}})|Easy| O(n)| O(1)||42.4%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||49.0%|
|
||||
|0078|Subsets|[Go]({{< relref "/ChapterFour/0001~0099/0078.Subsets.md" >}})|Medium| O(n^2)| O(n)|❤️|68.8%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium||||54.3%|
|
||||
|0090|Subsets II|[Go]({{< relref "/ChapterFour/0001~0099/0090.Subsets-II.md" >}})|Medium||||51.7%|
|
||||
|0136|Single Number|[Go]({{< relref "/ChapterFour/0100~0199/0136.Single-Number.md" >}})|Easy| O(n)| O(1)||68.0%|
|
||||
|0137|Single Number II|[Go]({{< relref "/ChapterFour/0100~0199/0137.Single-Number-II.md" >}})|Medium| O(n)| O(1)|❤️|55.7%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium| O(n)| O(1)||43.2%|
|
||||
|0190|Reverse Bits|[Go]({{< relref "/ChapterFour/0100~0199/0190.Reverse-Bits.md" >}})|Easy| O(n)| O(1)|❤️|46.1%|
|
||||
|0191|Number of 1 Bits|[Go]({{< relref "/ChapterFour/0100~0199/0191.Number-of-1-Bits.md" >}})|Easy| O(n)| O(1)||57.4%|
|
||||
|0201|Bitwise AND of Numbers Range|[Go]({{< relref "/ChapterFour/0200~0299/0201.Bitwise-AND-of-Numbers-Range.md" >}})|Medium| O(n)| O(1)|❤️|41.2%|
|
||||
|0231|Power of Two|[Go]({{< relref "/ChapterFour/0200~0299/0231.Power-of-Two.md" >}})|Easy| O(1)| O(1)||44.1%|
|
||||
|0260|Single Number III|[Go]({{< relref "/ChapterFour/0200~0299/0260.Single-Number-III.md" >}})|Medium| O(n)| O(1)|❤️|66.8%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy| O(n)| O(1)||57.9%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium||||58.3%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium| O(n)| O(1)||56.1%|
|
||||
|0338|Counting Bits|[Go]({{< relref "/ChapterFour/0300~0399/0338.Counting-Bits.md" >}})|Easy| O(n)| O(n)||72.0%|
|
||||
|0342|Power of Four|[Go]({{< relref "/ChapterFour/0300~0399/0342.Power-of-Four.md" >}})|Easy| O(n)| O(1)||42.9%|
|
||||
|0371|Sum of Two Integers|[Go]({{< relref "/ChapterFour/0300~0399/0371.Sum-of-Two-Integers.md" >}})|Medium| O(n)| O(1)||50.7%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy| O(n)| O(1)||58.5%|
|
||||
|0393|UTF-8 Validation|[Go]({{< relref "/ChapterFour/0300~0399/0393.UTF-8-Validation.md" >}})|Medium| O(n)| O(1)||38.6%|
|
||||
|0397|Integer Replacement|[Go]({{< relref "/ChapterFour/0300~0399/0397.Integer-Replacement.md" >}})|Medium| O(n)| O(1)||33.8%|
|
||||
|0401|Binary Watch|[Go]({{< relref "/ChapterFour/0400~0499/0401.Binary-Watch.md" >}})|Easy| O(1)| O(1)||49.3%|
|
||||
|0405|Convert a Number to Hexadecimal|[Go]({{< relref "/ChapterFour/0400~0499/0405.Convert-a-Number-to-Hexadecimal.md" >}})|Easy| O(n)| O(1)||45.0%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium| O(n)| O(1)|❤️|54.9%|
|
||||
|0461|Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0461.Hamming-Distance.md" >}})|Easy| O(n)| O(1)||73.5%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.0%|
|
||||
|0476|Number Complement|[Go]({{< relref "/ChapterFour/0400~0499/0476.Number-Complement.md" >}})|Easy| O(n)| O(1)||65.3%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium| O(n)| O(1)||51.1%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||48.9%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||62.6%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||53.9%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||40.9%|
|
||||
|0693|Binary Number with Alternating Bits|[Go]({{< relref "/ChapterFour/0600~0699/0693.Binary-Number-with-Alternating-Bits.md" >}})|Easy| O(n)| O(1)|❤️|60.4%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium| O(n log n)| O(n)||56.0%|
|
||||
|0762|Prime Number of Set Bits in Binary Representation|[Go]({{< relref "/ChapterFour/0700~0799/0762.Prime-Number-of-Set-Bits-in-Binary-Representation.md" >}})|Easy| O(n)| O(1)||65.3%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium| O(n)| O(1)||69.5%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||51.2%|
|
||||
|0864|Shortest Path to Get All Keys|[Go]({{< relref "/ChapterFour/0800~0899/0864.Shortest-Path-to-Get-All-Keys.md" >}})|Hard||||43.2%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium| O(n)| O(1)||35.6%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard||||77.3%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy| O(n)| O(1)||58.9%|
|
||||
|0393|UTF-8 Validation|[Go]({{< relref "/ChapterFour/0300~0399/0393.UTF-8-Validation.md" >}})|Medium| O(n)| O(1)||38.9%|
|
||||
|0397|Integer Replacement|[Go]({{< relref "/ChapterFour/0300~0399/0397.Integer-Replacement.md" >}})|Medium| O(n)| O(1)||34.3%|
|
||||
|0401|Binary Watch|[Go]({{< relref "/ChapterFour/0400~0499/0401.Binary-Watch.md" >}})|Easy| O(1)| O(1)||49.8%|
|
||||
|0405|Convert a Number to Hexadecimal|[Go]({{< relref "/ChapterFour/0400~0499/0405.Convert-a-Number-to-Hexadecimal.md" >}})|Easy| O(n)| O(1)||45.3%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium| O(n)| O(1)|❤️|55.1%|
|
||||
|0461|Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0461.Hamming-Distance.md" >}})|Easy| O(n)| O(1)||74.2%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.3%|
|
||||
|0476|Number Complement|[Go]({{< relref "/ChapterFour/0400~0499/0476.Number-Complement.md" >}})|Easy| O(n)| O(1)||65.5%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium| O(n)| O(1)||51.6%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||49.7%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||63.6%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||54.2%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||41.1%|
|
||||
|0693|Binary Number with Alternating Bits|[Go]({{< relref "/ChapterFour/0600~0699/0693.Binary-Number-with-Alternating-Bits.md" >}})|Easy| O(n)| O(1)|❤️|60.5%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium| O(n log n)| O(n)||55.4%|
|
||||
|0762|Prime Number of Set Bits in Binary Representation|[Go]({{< relref "/ChapterFour/0700~0799/0762.Prime-Number-of-Set-Bits-in-Binary-Representation.md" >}})|Easy| O(n)| O(1)||65.9%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium| O(n)| O(1)||70.7%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||52.1%|
|
||||
|0864|Shortest Path to Get All Keys|[Go]({{< relref "/ChapterFour/0800~0899/0864.Shortest-Path-to-Get-All-Keys.md" >}})|Hard||||43.5%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium| O(n)| O(1)||36.2%|
|
||||
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard||||79.2%|
|
||||
|0995|Minimum Number of K Consecutive Bit Flips|[Go]({{< relref "/ChapterFour/0900~0999/0995.Minimum-Number-of-K-Consecutive-Bit-Flips.md" >}})|Hard||||50.4%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||48.7%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||40.7%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.5%|
|
||||
|1310|XOR Queries of a Subarray|[Go]({{< relref "/ChapterFour/1300~1399/1310.XOR-Queries-of-a-Subarray.md" >}})|Medium||||70.2%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.2%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.3%|
|
||||
|1486|XOR Operation in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1486.XOR-Operation-in-an-Array.md" >}})|Easy||||83.9%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.4%|
|
||||
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||36.4%|
|
||||
|1680|Concatenation of Consecutive Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1680.Concatenation-of-Consecutive-Binary-Numbers.md" >}})|Medium||||52.2%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.1%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.1%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||46.8%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.7%|
|
||||
|1310|XOR Queries of a Subarray|[Go]({{< relref "/ChapterFour/1300~1399/1310.XOR-Queries-of-a-Subarray.md" >}})|Medium||||70.8%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.9%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.5%|
|
||||
|1486|XOR Operation in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1486.XOR-Operation-in-an-Array.md" >}})|Easy||||84.0%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|
||||
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||37.0%|
|
||||
|1680|Concatenation of Consecutive Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1680.Concatenation-of-Consecutive-Binary-Numbers.md" >}})|Medium||||52.5%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.6%|
|
||||
|1684|Count the Number of Consistent Strings|[Go]({{< relref "/ChapterFour/1600~1699/1684.Count-the-Number-of-Consistent-Strings.md" >}})|Easy||||81.7%|
|
||||
|1720|Decode XORed Array|[Go]({{< relref "/ChapterFour/1700~1799/1720.Decode-XORed-Array.md" >}})|Easy||||85.7%|
|
||||
|1734|Decode XORed Permutation|[Go]({{< relref "/ChapterFour/1700~1799/1734.Decode-XORed-Permutation.md" >}})|Medium||||57.9%|
|
||||
|1738|Find Kth Largest XOR Coordinate Value|[Go]({{< relref "/ChapterFour/1700~1799/1738.Find-Kth-Largest-XOR-Coordinate-Value.md" >}})|Medium||||62.7%|
|
||||
|1734|Decode XORed Permutation|[Go]({{< relref "/ChapterFour/1700~1799/1734.Decode-XORed-Permutation.md" >}})|Medium||||59.0%|
|
||||
|1738|Find Kth Largest XOR Coordinate Value|[Go]({{< relref "/ChapterFour/1700~1799/1738.Find-Kth-Largest-XOR-Coordinate-Value.md" >}})|Medium||||62.6%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,78 +9,82 @@ weight: 10
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy||||54.6%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||49.5%|
|
||||
|0102|Binary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0102.Binary-Tree-Level-Order-Traversal.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0103|Binary Tree Zigzag Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0103.Binary-Tree-Zigzag-Level-Order-Traversal.md" >}})|Medium| O(n)| O(n)||51.4%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy||||69.4%|
|
||||
|0107|Binary Tree Level Order Traversal II|[Go]({{< relref "/ChapterFour/0100~0199/0107.Binary-Tree-Level-Order-Traversal-II.md" >}})|Medium| O(n)| O(1)||56.5%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||40.8%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||51.4%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|25.2%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard| O(n)| O(n)||33.1%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||30.9%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||57.5%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(n^2)| O(n^2)||50.9%|
|
||||
|0207|Course Schedule|[Go]({{< relref "/ChapterFour/0200~0299/0207.Course-Schedule.md" >}})|Medium| O(n^2)| O(n^2)||44.5%|
|
||||
|0210|Course Schedule II|[Go]({{< relref "/ChapterFour/0200~0299/0210.Course-Schedule-II.md" >}})|Medium| O(n^2)| O(n^2)||44.1%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy||||68.6%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||50.1%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||51.4%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium||||38.5%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||47.5%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||55.4%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy||||52.9%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||45.6%|
|
||||
|0429|N-ary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal.md" >}})|Medium||||67.9%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||44.2%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||67.4%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||63.6%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.1%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||62.6%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.5%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium| O(n)| O(1)||42.8%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium||||61.7%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||76.2%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.3%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy||||66.9%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||56.8%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.4%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium||||60.1%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard||||33.3%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Easy||||60.6%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||67.1%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||53.4%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||56.3%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||54.8%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium||||56.0%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard||||56.0%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||57.8%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||54.9%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.3%|
|
||||
|0802|Find Eventual Safe States|[Go]({{< relref "/ChapterFour/0800~0899/0802.Find-Eventual-Safe-States.md" >}})|Medium||||50.8%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.2%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||43.1%|
|
||||
|0841|Keys and Rooms|[Go]({{< relref "/ChapterFour/0800~0899/0841.Keys-and-Rooms.md" >}})|Medium||||67.2%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||59.0%|
|
||||
|0864|Shortest Path to Get All Keys|[Go]({{< relref "/ChapterFour/0800~0899/0864.Shortest-Path-to-Get-All-Keys.md" >}})|Hard||||43.2%|
|
||||
|0909|Snakes and Ladders|[Go]({{< relref "/ChapterFour/0900~0999/0909.Snakes-and-Ladders.md" >}})|Medium||||39.3%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.9%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.6%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium||||68.0%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||39.3%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy| O(n)| O(1)||52.4%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.2%|
|
||||
|1091|Shortest Path in Binary Matrix|[Go]({{< relref "/ChapterFour/1000~1099/1091.Shortest-Path-in-Binary-Matrix.md" >}})|Medium||||40.8%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||68.6%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||49.8%|
|
||||
|1203|Sort Items by Groups Respecting Dependencies|[Go]({{< relref "/ChapterFour/1200~1299/1203.Sort-Items-by-Groups-Respecting-Dependencies.md" >}})|Hard||||48.7%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.4%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.4%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.6%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||55.8%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||50.4%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||24.9%|
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy||||54.9%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||50.4%|
|
||||
|0102|Binary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0102.Binary-Tree-Level-Order-Traversal.md" >}})|Medium| O(n)| O(1)||59.4%|
|
||||
|0103|Binary Tree Zigzag Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0103.Binary-Tree-Zigzag-Level-Order-Traversal.md" >}})|Medium| O(n)| O(n)||52.3%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy||||70.3%|
|
||||
|0107|Binary Tree Level Order Traversal II|[Go]({{< relref "/ChapterFour/0100~0199/0107.Binary-Tree-Level-Order-Traversal-II.md" >}})|Medium| O(n)| O(1)||57.4%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||41.4%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||53.5%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|26.0%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard| O(n)| O(n)||33.9%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||32.7%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(n^2)| O(n^2)||52.2%|
|
||||
|0207|Course Schedule|[Go]({{< relref "/ChapterFour/0200~0299/0207.Course-Schedule.md" >}})|Medium| O(n^2)| O(n^2)||44.7%|
|
||||
|0210|Course Schedule II|[Go]({{< relref "/ChapterFour/0200~0299/0210.Course-Schedule-II.md" >}})|Medium| O(n^2)| O(n^2)||45.1%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy||||70.1%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||51.2%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.4%|
|
||||
|0301|Remove Invalid Parentheses|[Go]({{< relref "/ChapterFour/0300~0399/0301.Remove-Invalid-Parentheses.md" >}})|Hard||||46.1%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium||||39.1%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||48.4%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||56.1%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy||||54.3%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||46.8%|
|
||||
|0429|N-ary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal.md" >}})|Medium||||68.2%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||45.0%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||68.4%|
|
||||
|0488|Zuma Game|[Go]({{< relref "/ChapterFour/0400~0499/0488.Zuma-Game.md" >}})|Hard||||37.5%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||64.2%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.8%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||63.6%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.8%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium| O(n)| O(1)||43.2%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium||||62.3%|
|
||||
|0559|Maximum Depth of N-ary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0559.Maximum-Depth-of-N-ary-Tree.md" >}})|Easy||||70.4%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||77.0%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.5%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy||||67.6%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||58.1%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.7%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium||||60.6%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard||||33.4%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Medium||||62.0%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||68.2%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||54.4%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||57.0%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||55.1%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium||||55.4%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard||||56.2%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||58.1%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||55.4%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.6%|
|
||||
|0802|Find Eventual Safe States|[Go]({{< relref "/ChapterFour/0800~0899/0802.Find-Eventual-Safe-States.md" >}})|Medium||||51.4%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.7%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||44.2%|
|
||||
|0841|Keys and Rooms|[Go]({{< relref "/ChapterFour/0800~0899/0841.Keys-and-Rooms.md" >}})|Medium||||67.8%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||60.0%|
|
||||
|0864|Shortest Path to Get All Keys|[Go]({{< relref "/ChapterFour/0800~0899/0864.Shortest-Path-to-Get-All-Keys.md" >}})|Hard||||43.5%|
|
||||
|0909|Snakes and Ladders|[Go]({{< relref "/ChapterFour/0900~0999/0909.Snakes-and-Ladders.md" >}})|Medium||||39.7%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.8%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.8%|
|
||||
|0958|Check Completeness of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0958.Check-Completeness-of-a-Binary-Tree.md" >}})|Medium||||53.0%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium||||68.3%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||40.1%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy| O(n)| O(1)||53.6%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.9%|
|
||||
|1091|Shortest Path in Binary Matrix|[Go]({{< relref "/ChapterFour/1000~1099/1091.Shortest-Path-in-Binary-Matrix.md" >}})|Medium||||41.5%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||69.2%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||51.3%|
|
||||
|1203|Sort Items by Groups Respecting Dependencies|[Go]({{< relref "/ChapterFour/1200~1299/1203.Sort-Items-by-Groups-Respecting-Dependencies.md" >}})|Hard||||49.0%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.7%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.6%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.5%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||56.5%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||51.2%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||25.7%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,108 +9,109 @@ weight: 9
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy||||67.8%|
|
||||
|0098|Validate Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0098.Validate-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||29.4%|
|
||||
|0099|Recover Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0099.Recover-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||44.0%|
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy| O(n)| O(1)||54.6%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||49.5%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||69.4%|
|
||||
|0110|Balanced Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0110.Balanced-Binary-Tree.md" >}})|Easy| O(n)| O(1)||45.4%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||40.8%|
|
||||
|0112|Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0112.Path-Sum.md" >}})|Easy| O(n)| O(1)||43.5%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium| O(n)| O(1)||51.5%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium| O(n)| O(1)||54.6%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||51.4%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard| O(n)| O(1)||36.3%|
|
||||
|0129|Sum Root to Leaf Numbers|[Go]({{< relref "/ChapterFour/0100~0199/0129.Sum-Root-to-Leaf-Numbers.md" >}})|Medium| O(n)| O(1)||52.8%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||30.9%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy||||59.2%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy||||59.8%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||57.5%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(n^2)| O(n^2)||50.9%|
|
||||
|0207|Course Schedule|[Go]({{< relref "/ChapterFour/0200~0299/0207.Course-Schedule.md" >}})|Medium| O(n^2)| O(n^2)||44.5%|
|
||||
|0210|Course Schedule II|[Go]({{< relref "/ChapterFour/0200~0299/0210.Course-Schedule-II.md" >}})|Medium| O(n^2)| O(n^2)||44.1%|
|
||||
|0211|Design Add and Search Words Data Structure|[Go]({{< relref "/ChapterFour/0200~0299/0211.Design-Add-and-Search-Words-Data-Structure.md" >}})|Medium||||41.7%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium||||51.3%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy||||68.6%|
|
||||
|0230|Kth Smallest Element in a BST|[Go]({{< relref "/ChapterFour/0200~0299/0230.Kth-Smallest-Element-in-a-BST.md" >}})|Medium||||64.3%|
|
||||
|0235|Lowest Common Ancestor of a Binary Search Tree|[Go]({{< relref "/ChapterFour/0200~0299/0235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree.md" >}})|Easy||||54.0%|
|
||||
|0236|Lowest Common Ancestor of a Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0236.Lowest-Common-Ancestor-of-a-Binary-Tree.md" >}})|Medium||||51.5%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy| O(n)| O(1)||55.6%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||51.4%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||47.5%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.2%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||56.8%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.0%|
|
||||
|0386|Lexicographical Numbers|[Go]({{< relref "/ChapterFour/0300~0399/0386.Lexicographical-Numbers.md" >}})|Medium||||56.0%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||55.4%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy||||52.9%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||45.6%|
|
||||
|0437|Path Sum III|[Go]({{< relref "/ChapterFour/0400~0499/0437.Path-Sum-III.md" >}})|Medium||||48.8%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||67.4%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||60.5%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||63.6%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.1%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||62.6%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.5%|
|
||||
|0538|Convert BST to Greater Tree|[Go]({{< relref "/ChapterFour/0500~0599/0538.Convert-BST-to-Greater-Tree.md" >}})|Medium||||61.0%|
|
||||
|0543|Diameter of Binary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0543.Diameter-of-Binary-Tree.md" >}})|Easy||||50.9%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium||||61.7%|
|
||||
|0563|Binary Tree Tilt|[Go]({{< relref "/ChapterFour/0500~0599/0563.Binary-Tree-Tilt.md" >}})|Easy||||54.3%|
|
||||
|0572|Subtree of Another Tree|[Go]({{< relref "/ChapterFour/0500~0599/0572.Subtree-of-Another-Tree.md" >}})|Easy||||44.7%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||74.8%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||76.2%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.3%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy||||66.9%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||56.8%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.4%|
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy||||69.1%|
|
||||
|0098|Validate Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0098.Validate-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||29.8%|
|
||||
|0099|Recover Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0099.Recover-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||45.0%|
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy| O(n)| O(1)||54.9%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||50.4%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||70.3%|
|
||||
|0110|Balanced Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0110.Balanced-Binary-Tree.md" >}})|Easy| O(n)| O(1)||45.9%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||41.4%|
|
||||
|0112|Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0112.Path-Sum.md" >}})|Easy| O(n)| O(1)||44.3%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium| O(n)| O(1)||52.6%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium| O(n)| O(1)||56.0%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||53.5%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard| O(n)| O(1)||36.9%|
|
||||
|0129|Sum Root to Leaf Numbers|[Go]({{< relref "/ChapterFour/0100~0199/0129.Sum-Root-to-Leaf-Numbers.md" >}})|Medium| O(n)| O(1)||55.1%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium||||32.7%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy||||60.5%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy||||61.6%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(n^2)| O(n^2)||52.2%|
|
||||
|0207|Course Schedule|[Go]({{< relref "/ChapterFour/0200~0299/0207.Course-Schedule.md" >}})|Medium| O(n^2)| O(n^2)||44.7%|
|
||||
|0210|Course Schedule II|[Go]({{< relref "/ChapterFour/0200~0299/0210.Course-Schedule-II.md" >}})|Medium| O(n^2)| O(n^2)||45.1%|
|
||||
|0211|Design Add and Search Words Data Structure|[Go]({{< relref "/ChapterFour/0200~0299/0211.Design-Add-and-Search-Words-Data-Structure.md" >}})|Medium||||42.6%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium||||53.6%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy||||70.1%|
|
||||
|0230|Kth Smallest Element in a BST|[Go]({{< relref "/ChapterFour/0200~0299/0230.Kth-Smallest-Element-in-a-BST.md" >}})|Medium||||65.3%|
|
||||
|0235|Lowest Common Ancestor of a Binary Search Tree|[Go]({{< relref "/ChapterFour/0200~0299/0235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree.md" >}})|Easy||||55.2%|
|
||||
|0236|Lowest Common Ancestor of a Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0236.Lowest-Common-Ancestor-of-a-Binary-Tree.md" >}})|Medium||||53.1%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy| O(n)| O(1)||56.8%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.4%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||48.4%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.5%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.6%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.4%|
|
||||
|0386|Lexicographical Numbers|[Go]({{< relref "/ChapterFour/0300~0399/0386.Lexicographical-Numbers.md" >}})|Medium||||57.1%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||56.1%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy||||54.3%|
|
||||
|0417|Pacific Atlantic Water Flow|[Go]({{< relref "/ChapterFour/0400~0499/0417.Pacific-Atlantic-Water-Flow.md" >}})|Medium||||46.8%|
|
||||
|0437|Path Sum III|[Go]({{< relref "/ChapterFour/0400~0499/0437.Path-Sum-III.md" >}})|Medium||||49.7%|
|
||||
|0463|Island Perimeter|[Go]({{< relref "/ChapterFour/0400~0499/0463.Island-Perimeter.md" >}})|Easy||||68.4%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||61.5%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||64.2%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.8%|
|
||||
|0529|Minesweeper|[Go]({{< relref "/ChapterFour/0500~0599/0529.Minesweeper.md" >}})|Medium||||63.6%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.8%|
|
||||
|0538|Convert BST to Greater Tree|[Go]({{< relref "/ChapterFour/0500~0599/0538.Convert-BST-to-Greater-Tree.md" >}})|Medium||||61.8%|
|
||||
|0543|Diameter of Binary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0543.Diameter-of-Binary-Tree.md" >}})|Easy||||52.6%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium||||62.3%|
|
||||
|0559|Maximum Depth of N-ary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0559.Maximum-Depth-of-N-ary-Tree.md" >}})|Easy||||70.4%|
|
||||
|0563|Binary Tree Tilt|[Go]({{< relref "/ChapterFour/0500~0599/0563.Binary-Tree-Tilt.md" >}})|Easy||||55.0%|
|
||||
|0572|Subtree of Another Tree|[Go]({{< relref "/ChapterFour/0500~0599/0572.Subtree-of-Another-Tree.md" >}})|Easy||||44.9%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||75.3%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||77.0%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.5%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy||||67.6%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||58.1%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.7%|
|
||||
|0669|Trim a Binary Search Tree|[Go]({{< relref "/ChapterFour/0600~0699/0669.Trim-a-Binary-Search-Tree.md" >}})|Medium||||64.4%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium||||60.1%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard||||33.3%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Easy||||60.6%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||67.1%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||53.4%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||56.3%|
|
||||
|0753|Cracking the Safe|[Go]({{< relref "/ChapterFour/0700~0799/0753.Cracking-the-Safe.md" >}})|Hard||||53.2%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium||||56.0%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard||||56.0%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||57.8%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||54.9%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.3%|
|
||||
|0802|Find Eventual Safe States|[Go]({{< relref "/ChapterFour/0800~0899/0802.Find-Eventual-Safe-States.md" >}})|Medium||||50.8%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||47.8%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||43.1%|
|
||||
|0841|Keys and Rooms|[Go]({{< relref "/ChapterFour/0800~0899/0841.Keys-and-Rooms.md" >}})|Medium||||67.2%|
|
||||
|0851|Loud and Rich|[Go]({{< relref "/ChapterFour/0800~0899/0851.Loud-and-Rich.md" >}})|Medium||||53.7%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||59.0%|
|
||||
|0872|Leaf-Similar Trees|[Go]({{< relref "/ChapterFour/0800~0899/0872.Leaf-Similar-Trees.md" >}})|Easy||||64.6%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.3%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.9%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.6%|
|
||||
|0938|Range Sum of BST|[Go]({{< relref "/ChapterFour/0900~0999/0938.Range-Sum-of-BST.md" >}})|Easy||||83.7%|
|
||||
|0947|Most Stones Removed with Same Row or Column|[Go]({{< relref "/ChapterFour/0900~0999/0947.Most-Stones-Removed-with-Same-Row-or-Column.md" >}})|Medium||||56.0%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium||||68.0%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||40.9%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium||||60.6%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard||||33.4%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Medium||||62.0%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||68.2%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||54.4%|
|
||||
|0733|Flood Fill|[Go]({{< relref "/ChapterFour/0700~0799/0733.Flood-Fill.md" >}})|Easy||||57.0%|
|
||||
|0753|Cracking the Safe|[Go]({{< relref "/ChapterFour/0700~0799/0753.Cracking-the-Safe.md" >}})|Hard||||53.9%|
|
||||
|0756|Pyramid Transition Matrix|[Go]({{< relref "/ChapterFour/0700~0799/0756.Pyramid-Transition-Matrix.md" >}})|Medium||||55.4%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard||||56.2%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard||||58.1%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||55.4%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.6%|
|
||||
|0802|Find Eventual Safe States|[Go]({{< relref "/ChapterFour/0800~0899/0802.Find-Eventual-Safe-States.md" >}})|Medium||||51.4%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||52.4%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||44.2%|
|
||||
|0841|Keys and Rooms|[Go]({{< relref "/ChapterFour/0800~0899/0841.Keys-and-Rooms.md" >}})|Medium||||67.8%|
|
||||
|0851|Loud and Rich|[Go]({{< relref "/ChapterFour/0800~0899/0851.Loud-and-Rich.md" >}})|Medium||||55.1%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||60.0%|
|
||||
|0872|Leaf-Similar Trees|[Go]({{< relref "/ChapterFour/0800~0899/0872.Leaf-Similar-Trees.md" >}})|Easy||||64.7%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.6%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard||||41.8%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard||||41.8%|
|
||||
|0938|Range Sum of BST|[Go]({{< relref "/ChapterFour/0900~0999/0938.Range-Sum-of-BST.md" >}})|Easy||||84.1%|
|
||||
|0947|Most Stones Removed with Same Row or Column|[Go]({{< relref "/ChapterFour/0900~0999/0947.Most-Stones-Removed-with-Same-Row-or-Column.md" >}})|Medium||||56.2%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium||||68.3%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||41.2%|
|
||||
|0971|Flip Binary Tree To Match Preorder Traversal|[Go]({{< relref "/ChapterFour/0900~0999/0971.Flip-Binary-Tree-To-Match-Preorder-Traversal.md" >}})|Medium||||49.9%|
|
||||
|0979|Distribute Coins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0979.Distribute-Coins-in-Binary-Tree.md" >}})|Medium||||70.4%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||39.3%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy||||52.4%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.2%|
|
||||
|1026|Maximum Difference Between Node and Ancestor|[Go]({{< relref "/ChapterFour/1000~1099/1026.Maximum-Difference-Between-Node-and-Ancestor.md" >}})|Medium||||70.3%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.4%|
|
||||
|1038|Binary Search Tree to Greater Sum Tree|[Go]({{< relref "/ChapterFour/1000~1099/1038.Binary-Search-Tree-to-Greater-Sum-Tree.md" >}})|Medium||||83.4%|
|
||||
|1110|Delete Nodes And Return Forest|[Go]({{< relref "/ChapterFour/1100~1199/1110.Delete-Nodes-And-Return-Forest.md" >}})|Medium||||68.4%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||68.6%|
|
||||
|0979|Distribute Coins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0979.Distribute-Coins-in-Binary-Tree.md" >}})|Medium||||70.8%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||40.1%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy||||53.6%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.9%|
|
||||
|1026|Maximum Difference Between Node and Ancestor|[Go]({{< relref "/ChapterFour/1000~1099/1026.Maximum-Difference-Between-Node-and-Ancestor.md" >}})|Medium||||70.8%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.9%|
|
||||
|1038|Binary Search Tree to Greater Sum Tree|[Go]({{< relref "/ChapterFour/1000~1099/1038.Binary-Search-Tree-to-Greater-Sum-Tree.md" >}})|Medium||||84.0%|
|
||||
|1110|Delete Nodes And Return Forest|[Go]({{< relref "/ChapterFour/1100~1199/1110.Delete-Nodes-And-Return-Forest.md" >}})|Medium||||68.8%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||69.2%|
|
||||
|1145|Binary Tree Coloring Game|[Go]({{< relref "/ChapterFour/1100~1199/1145.Binary-Tree-Coloring-Game.md" >}})|Medium||||51.1%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||49.8%|
|
||||
|1203|Sort Items by Groups Respecting Dependencies|[Go]({{< relref "/ChapterFour/1200~1299/1203.Sort-Items-by-Groups-Respecting-Dependencies.md" >}})|Hard||||48.7%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.4%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.4%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.2%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.6%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||55.8%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||61.9%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||50.4%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||51.3%|
|
||||
|1203|Sort Items by Groups Respecting Dependencies|[Go]({{< relref "/ChapterFour/1200~1299/1203.Sort-Items-by-Groups-Respecting-Dependencies.md" >}})|Hard||||49.0%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.7%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.6%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.6%|
|
||||
|1306|Jump Game III|[Go]({{< relref "/ChapterFour/1300~1399/1306.Jump-Game-III.md" >}})|Medium||||61.5%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||56.5%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||62.3%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||51.2%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,100 +9,102 @@ weight: 7
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0005|Longest Palindromic Substring|[Go]({{< relref "/ChapterFour/0001~0099/0005.Longest-Palindromic-Substring.md" >}})|Medium||||31.1%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium||||67.4%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.4%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard||||53.0%|
|
||||
|0045|Jump Game II|[Go]({{< relref "/ChapterFour/0001~0099/0045.Jump-Game-II.md" >}})|Medium||||33.8%|
|
||||
|0053|Maximum Subarray|[Go]({{< relref "/ChapterFour/0001~0099/0053.Maximum-Subarray.md" >}})|Easy| O(n)| O(n)||48.3%|
|
||||
|0055|Jump Game|[Go]({{< relref "/ChapterFour/0001~0099/0055.Jump-Game.md" >}})|Medium||||35.9%|
|
||||
|0062|Unique Paths|[Go]({{< relref "/ChapterFour/0001~0099/0062.Unique-Paths.md" >}})|Medium| O(n^2)| O(n^2)||57.3%|
|
||||
|0063|Unique Paths II|[Go]({{< relref "/ChapterFour/0001~0099/0063.Unique-Paths-II.md" >}})|Medium| O(n^2)| O(n^2)||36.2%|
|
||||
|0064|Minimum Path Sum|[Go]({{< relref "/ChapterFour/0001~0099/0064.Minimum-Path-Sum.md" >}})|Medium| O(n^2)| O(n^2)||57.4%|
|
||||
|0070|Climbing Stairs|[Go]({{< relref "/ChapterFour/0001~0099/0070.Climbing-Stairs.md" >}})|Easy| O(n)| O(n)||49.2%|
|
||||
|0091|Decode Ways|[Go]({{< relref "/ChapterFour/0001~0099/0091.Decode-Ways.md" >}})|Medium| O(n)| O(n)||27.9%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||44.6%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium| O(n)| O(n)||55.6%|
|
||||
|0097|Interleaving String|[Go]({{< relref "/ChapterFour/0001~0099/0097.Interleaving-String.md" >}})|Medium||||33.8%|
|
||||
|0115|Distinct Subsequences|[Go]({{< relref "/ChapterFour/0100~0199/0115.Distinct-Subsequences.md" >}})|Hard||||40.6%|
|
||||
|0118|Pascal's Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0118.Pascals-Triangle.md" >}})|Easy||||58.3%|
|
||||
|0119|Pascal's Triangle II|[Go]({{< relref "/ChapterFour/0100~0199/0119.Pascals-Triangle-II.md" >}})|Easy||||53.8%|
|
||||
|0120|Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0120.Triangle.md" >}})|Medium| O(n^2)| O(n)||47.7%|
|
||||
|0121|Best Time to Buy and Sell Stock|[Go]({{< relref "/ChapterFour/0100~0199/0121.Best-Time-to-Buy-and-Sell-Stock.md" >}})|Easy| O(n)| O(1)||52.4%|
|
||||
|0122|Best Time to Buy and Sell Stock II|[Go]({{< relref "/ChapterFour/0100~0199/0122.Best-Time-to-Buy-and-Sell-Stock-II.md" >}})|Easy||||59.7%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard||||36.3%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium||||54.6%|
|
||||
|0152|Maximum Product Subarray|[Go]({{< relref "/ChapterFour/0100~0199/0152.Maximum-Product-Subarray.md" >}})|Medium| O(n)| O(1)||33.3%|
|
||||
|0174|Dungeon Game|[Go]({{< relref "/ChapterFour/0100~0199/0174.Dungeon-Game.md" >}})|Hard||||34.0%|
|
||||
|0198|House Robber|[Go]({{< relref "/ChapterFour/0100~0199/0198.House-Robber.md" >}})|Medium| O(n)| O(n)||44.0%|
|
||||
|0213|House Robber II|[Go]({{< relref "/ChapterFour/0200~0299/0213.House-Robber-II.md" >}})|Medium| O(n)| O(n)||38.1%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||43.6%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||50.1%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium| O(n log n)| O(n)||46.4%|
|
||||
|0309|Best Time to Buy and Sell Stock with Cooldown|[Go]({{< relref "/ChapterFour/0300~0399/0309.Best-Time-to-Buy-and-Sell-Stock-with-Cooldown.md" >}})|Medium| O(n)| O(n)||49.2%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium| O(n)| O(n)||38.5%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||47.5%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.2%|
|
||||
|0338|Counting Bits|[Go]({{< relref "/ChapterFour/0300~0399/0338.Counting-Bits.md" >}})|Easy| O(n)| O(n)||71.4%|
|
||||
|0343|Integer Break|[Go]({{< relref "/ChapterFour/0300~0399/0343.Integer-Break.md" >}})|Medium| O(n^2)| O(n)||51.8%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||38.7%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||49.6%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||38.8%|
|
||||
|0376|Wiggle Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0376.Wiggle-Subsequence.md" >}})|Medium||||42.9%|
|
||||
|0377|Combination Sum IV|[Go]({{< relref "/ChapterFour/0300~0399/0377.Combination-Sum-IV.md" >}})|Medium||||47.5%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy| O(n)| O(1)||49.8%|
|
||||
|0397|Integer Replacement|[Go]({{< relref "/ChapterFour/0300~0399/0397.Integer-Replacement.md" >}})|Medium||||33.8%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||47.7%|
|
||||
|0413|Arithmetic Slices|[Go]({{< relref "/ChapterFour/0400~0499/0413.Arithmetic-Slices.md" >}})|Medium||||60.4%|
|
||||
|0416|Partition Equal Subset Sum|[Go]({{< relref "/ChapterFour/0400~0499/0416.Partition-Equal-Subset-Sum.md" >}})|Medium| O(n^2)| O(n)||45.4%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||45.3%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.0%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||43.6%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.4%|
|
||||
|0005|Longest Palindromic Substring|[Go]({{< relref "/ChapterFour/0001~0099/0005.Longest-Palindromic-Substring.md" >}})|Medium||||31.5%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium||||68.5%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.8%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard||||54.6%|
|
||||
|0045|Jump Game II|[Go]({{< relref "/ChapterFour/0001~0099/0045.Jump-Game-II.md" >}})|Medium||||35.4%|
|
||||
|0053|Maximum Subarray|[Go]({{< relref "/ChapterFour/0001~0099/0053.Maximum-Subarray.md" >}})|Easy| O(n)| O(n)||49.2%|
|
||||
|0055|Jump Game|[Go]({{< relref "/ChapterFour/0001~0099/0055.Jump-Game.md" >}})|Medium||||36.9%|
|
||||
|0062|Unique Paths|[Go]({{< relref "/ChapterFour/0001~0099/0062.Unique-Paths.md" >}})|Medium| O(n^2)| O(n^2)||58.6%|
|
||||
|0063|Unique Paths II|[Go]({{< relref "/ChapterFour/0001~0099/0063.Unique-Paths-II.md" >}})|Medium| O(n^2)| O(n^2)||36.7%|
|
||||
|0064|Minimum Path Sum|[Go]({{< relref "/ChapterFour/0001~0099/0064.Minimum-Path-Sum.md" >}})|Medium| O(n^2)| O(n^2)||58.2%|
|
||||
|0070|Climbing Stairs|[Go]({{< relref "/ChapterFour/0001~0099/0070.Climbing-Stairs.md" >}})|Easy| O(n)| O(n)||50.2%|
|
||||
|0091|Decode Ways|[Go]({{< relref "/ChapterFour/0001~0099/0091.Decode-Ways.md" >}})|Medium| O(n)| O(n)||29.0%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||47.6%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium| O(n)| O(n)||57.3%|
|
||||
|0097|Interleaving String|[Go]({{< relref "/ChapterFour/0001~0099/0097.Interleaving-String.md" >}})|Medium||||34.1%|
|
||||
|0115|Distinct Subsequences|[Go]({{< relref "/ChapterFour/0100~0199/0115.Distinct-Subsequences.md" >}})|Hard||||41.7%|
|
||||
|0118|Pascal's Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0118.Pascals-Triangle.md" >}})|Easy||||60.9%|
|
||||
|0119|Pascal's Triangle II|[Go]({{< relref "/ChapterFour/0100~0199/0119.Pascals-Triangle-II.md" >}})|Easy||||55.4%|
|
||||
|0120|Triangle|[Go]({{< relref "/ChapterFour/0100~0199/0120.Triangle.md" >}})|Medium| O(n^2)| O(n)||49.0%|
|
||||
|0121|Best Time to Buy and Sell Stock|[Go]({{< relref "/ChapterFour/0100~0199/0121.Best-Time-to-Buy-and-Sell-Stock.md" >}})|Easy| O(n)| O(1)||53.1%|
|
||||
|0122|Best Time to Buy and Sell Stock II|[Go]({{< relref "/ChapterFour/0100~0199/0122.Best-Time-to-Buy-and-Sell-Stock-II.md" >}})|Medium||||60.9%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard||||36.9%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium||||56.1%|
|
||||
|0152|Maximum Product Subarray|[Go]({{< relref "/ChapterFour/0100~0199/0152.Maximum-Product-Subarray.md" >}})|Medium| O(n)| O(1)||33.7%|
|
||||
|0174|Dungeon Game|[Go]({{< relref "/ChapterFour/0100~0199/0174.Dungeon-Game.md" >}})|Hard||||35.7%|
|
||||
|0198|House Robber|[Go]({{< relref "/ChapterFour/0100~0199/0198.House-Robber.md" >}})|Medium| O(n)| O(n)||45.2%|
|
||||
|0213|House Robber II|[Go]({{< relref "/ChapterFour/0200~0299/0213.House-Robber-II.md" >}})|Medium| O(n)| O(n)||38.9%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||44.4%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||51.2%|
|
||||
|0300|Longest Increasing Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0300.Longest-Increasing-Subsequence.md" >}})|Medium| O(n log n)| O(n)||47.6%|
|
||||
|0309|Best Time to Buy and Sell Stock with Cooldown|[Go]({{< relref "/ChapterFour/0300~0399/0309.Best-Time-to-Buy-and-Sell-Stock-with-Cooldown.md" >}})|Medium| O(n)| O(n)||50.9%|
|
||||
|0322|Coin Change|[Go]({{< relref "/ChapterFour/0300~0399/0322.Coin-Change.md" >}})|Medium| O(n)| O(n)||39.1%|
|
||||
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||48.4%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.5%|
|
||||
|0338|Counting Bits|[Go]({{< relref "/ChapterFour/0300~0399/0338.Counting-Bits.md" >}})|Easy| O(n)| O(n)||72.0%|
|
||||
|0343|Integer Break|[Go]({{< relref "/ChapterFour/0300~0399/0343.Integer-Break.md" >}})|Medium| O(n^2)| O(n)||52.8%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||39.3%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||50.0%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||40.1%|
|
||||
|0376|Wiggle Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0376.Wiggle-Subsequence.md" >}})|Medium||||43.8%|
|
||||
|0377|Combination Sum IV|[Go]({{< relref "/ChapterFour/0300~0399/0377.Combination-Sum-IV.md" >}})|Medium||||48.2%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy| O(n)| O(1)||50.0%|
|
||||
|0397|Integer Replacement|[Go]({{< relref "/ChapterFour/0300~0399/0397.Integer-Replacement.md" >}})|Medium||||34.3%|
|
||||
|0410|Split Array Largest Sum|[Go]({{< relref "/ChapterFour/0400~0499/0410.Split-Array-Largest-Sum.md" >}})|Hard||||48.9%|
|
||||
|0413|Arithmetic Slices|[Go]({{< relref "/ChapterFour/0400~0499/0413.Arithmetic-Slices.md" >}})|Medium||||61.6%|
|
||||
|0416|Partition Equal Subset Sum|[Go]({{< relref "/ChapterFour/0400~0499/0416.Partition-Equal-Subset-Sum.md" >}})|Medium| O(n^2)| O(n)||45.7%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||46.6%|
|
||||
|0458|Poor Pigs|[Go]({{< relref "/ChapterFour/0400~0499/0458.Poor-Pigs.md" >}})|Hard||||55.2%|
|
||||
|0473|Matchsticks to Square|[Go]({{< relref "/ChapterFour/0400~0499/0473.Matchsticks-to-Square.md" >}})|Medium||||40.3%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||44.0%|
|
||||
|0488|Zuma Game|[Go]({{< relref "/ChapterFour/0400~0499/0488.Zuma-Game.md" >}})|Hard||||37.5%|
|
||||
|0494|Target Sum|[Go]({{< relref "/ChapterFour/0400~0499/0494.Target-Sum.md" >}})|Medium||||45.3%|
|
||||
|0509|Fibonacci Number|[Go]({{< relref "/ChapterFour/0500~0599/0509.Fibonacci-Number.md" >}})|Easy||||67.8%|
|
||||
|0518|Coin Change 2|[Go]({{< relref "/ChapterFour/0500~0599/0518.Coin-Change-2.md" >}})|Medium||||53.8%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||62.6%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium||||42.8%|
|
||||
|0576|Out of Boundary Paths|[Go]({{< relref "/ChapterFour/0500~0599/0576.Out-of-Boundary-Paths.md" >}})|Medium||||39.6%|
|
||||
|0583|Delete Operation for Two Strings|[Go]({{< relref "/ChapterFour/0500~0599/0583.Delete-Operation-for-Two-Strings.md" >}})|Medium||||52.7%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||53.9%|
|
||||
|0647|Palindromic Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0647.Palindromic-Substrings.md" >}})|Medium||||63.2%|
|
||||
|0714|Best Time to Buy and Sell Stock with Transaction Fee|[Go]({{< relref "/ChapterFour/0700~0799/0714.Best-Time-to-Buy-and-Sell-Stock-with-Transaction-Fee.md" >}})|Medium| O(n)| O(1)||59.0%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.1%|
|
||||
|0746|Min Cost Climbing Stairs|[Go]({{< relref "/ChapterFour/0700~0799/0746.Min-Cost-Climbing-Stairs.md" >}})|Easy| O(n)| O(1)||54.0%|
|
||||
|0518|Coin Change 2|[Go]({{< relref "/ChapterFour/0500~0599/0518.Coin-Change-2.md" >}})|Medium||||55.4%|
|
||||
|0526|Beautiful Arrangement|[Go]({{< relref "/ChapterFour/0500~0599/0526.Beautiful-Arrangement.md" >}})|Medium||||63.6%|
|
||||
|0542|01 Matrix|[Go]({{< relref "/ChapterFour/0500~0599/0542.01-Matrix.md" >}})|Medium||||43.2%|
|
||||
|0576|Out of Boundary Paths|[Go]({{< relref "/ChapterFour/0500~0599/0576.Out-of-Boundary-Paths.md" >}})|Medium||||39.8%|
|
||||
|0583|Delete Operation for Two Strings|[Go]({{< relref "/ChapterFour/0500~0599/0583.Delete-Operation-for-Two-Strings.md" >}})|Medium||||54.0%|
|
||||
|0638|Shopping Offers|[Go]({{< relref "/ChapterFour/0600~0699/0638.Shopping-Offers.md" >}})|Medium||||54.2%|
|
||||
|0647|Palindromic Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0647.Palindromic-Substrings.md" >}})|Medium||||63.8%|
|
||||
|0714|Best Time to Buy and Sell Stock with Transaction Fee|[Go]({{< relref "/ChapterFour/0700~0799/0714.Best-Time-to-Buy-and-Sell-Stock-with-Transaction-Fee.md" >}})|Medium| O(n)| O(1)||60.4%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.3%|
|
||||
|0746|Min Cost Climbing Stairs|[Go]({{< relref "/ChapterFour/0700~0799/0746.Min-Cost-Climbing-Stairs.md" >}})|Easy| O(n)| O(1)||56.2%|
|
||||
|0823|Binary Trees With Factors|[Go]({{< relref "/ChapterFour/0800~0899/0823.Binary-Trees-With-Factors.md" >}})|Medium||||43.6%|
|
||||
|0828|Count Unique Characters of All Substrings of a Given String|[Go]({{< relref "/ChapterFour/0800~0899/0828.Count-Unique-Characters-of-All-Substrings-of-a-Given-String.md" >}})|Hard||||47.0%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||47.8%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium| O(n)| O(n)||51.8%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium||||39.1%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.3%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||26.9%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium||||35.6%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium||||32.9%|
|
||||
|0918|Maximum Sum Circular Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0918.Maximum-Sum-Circular-Subarray.md" >}})|Medium||||34.9%|
|
||||
|0920|Number of Music Playlists|[Go]({{< relref "/ChapterFour/0900~0999/0920.Number-of-Music-Playlists.md" >}})|Hard||||48.5%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||40.9%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium||||46.9%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||48.7%|
|
||||
|0828|Count Unique Characters of All Substrings of a Given String|[Go]({{< relref "/ChapterFour/0800~0899/0828.Count-Unique-Characters-of-All-Substrings-of-a-Given-String.md" >}})|Hard||||48.2%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||52.4%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium| O(n)| O(n)||52.0%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium||||39.3%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.7%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||27.0%|
|
||||
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium||||36.2%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium||||33.0%|
|
||||
|0918|Maximum Sum Circular Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0918.Maximum-Sum-Circular-Subarray.md" >}})|Medium||||35.8%|
|
||||
|0920|Number of Music Playlists|[Go]({{< relref "/ChapterFour/0900~0999/0920.Number-of-Music-Playlists.md" >}})|Hard||||48.8%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||41.2%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium||||47.5%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.1%|
|
||||
|1025|Divisor Game|[Go]({{< relref "/ChapterFour/1000~1099/1025.Divisor-Game.md" >}})|Easy| O(1)| O(1)||66.4%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||56.4%|
|
||||
|1049|Last Stone Weight II|[Go]({{< relref "/ChapterFour/1000~1099/1049.Last-Stone-Weight-II.md" >}})|Medium||||48.2%|
|
||||
|1105|Filling Bookcase Shelves|[Go]({{< relref "/ChapterFour/1100~1199/1105.Filling-Bookcase-Shelves.md" >}})|Medium||||57.7%|
|
||||
|1137|N-th Tribonacci Number|[Go]({{< relref "/ChapterFour/1100~1199/1137.N-th-Tribonacci-Number.md" >}})|Easy||||56.2%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.2%|
|
||||
|1049|Last Stone Weight II|[Go]({{< relref "/ChapterFour/1000~1099/1049.Last-Stone-Weight-II.md" >}})|Medium||||49.6%|
|
||||
|1105|Filling Bookcase Shelves|[Go]({{< relref "/ChapterFour/1100~1199/1105.Filling-Bookcase-Shelves.md" >}})|Medium||||57.8%|
|
||||
|1137|N-th Tribonacci Number|[Go]({{< relref "/ChapterFour/1100~1199/1137.N-th-Tribonacci-Number.md" >}})|Easy||||61.1%|
|
||||
|1143|Longest Common Subsequence|[Go]({{< relref "/ChapterFour/1100~1199/1143.Longest-Common-Subsequence.md" >}})|Medium||||58.8%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||48.3%|
|
||||
|1463|Cherry Pickup II|[Go]({{< relref "/ChapterFour/1400~1499/1463.Cherry-Pickup-II.md" >}})|Hard||||68.5%|
|
||||
|1641|Count Sorted Vowel Strings|[Go]({{< relref "/ChapterFour/1600~1699/1641.Count-Sorted-Vowel-Strings.md" >}})|Medium||||75.0%|
|
||||
|1646|Get Maximum in Generated Array|[Go]({{< relref "/ChapterFour/1600~1699/1646.Get-Maximum-in-Generated-Array.md" >}})|Easy||||52.1%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||53.0%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||24.9%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.4%|
|
||||
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||36.4%|
|
||||
|1664|Ways to Make a Fair Array|[Go]({{< relref "/ChapterFour/1600~1699/1664.Ways-to-Make-a-Fair-Array.md" >}})|Medium||||62.1%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.1%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||50.5%|
|
||||
|1463|Cherry Pickup II|[Go]({{< relref "/ChapterFour/1400~1499/1463.Cherry-Pickup-II.md" >}})|Hard||||68.3%|
|
||||
|1641|Count Sorted Vowel Strings|[Go]({{< relref "/ChapterFour/1600~1699/1641.Count-Sorted-Vowel-Strings.md" >}})|Medium||||74.8%|
|
||||
|1646|Get Maximum in Generated Array|[Go]({{< relref "/ChapterFour/1600~1699/1646.Get-Maximum-in-Generated-Array.md" >}})|Easy||||51.3%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||54.1%|
|
||||
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||25.7%|
|
||||
|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|
||||
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||37.0%|
|
||||
|1664|Ways to Make a Fair Array|[Go]({{< relref "/ChapterFour/1600~1699/1664.Ways-to-Make-a-Fair-Array.md" >}})|Medium||||62.4%|
|
||||
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.6%|
|
||||
|1690|Stone Game VII|[Go]({{< relref "/ChapterFour/1600~1699/1690.Stone-Game-VII.md" >}})|Medium||||58.8%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||51.1%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||41.9%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||52.7%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||42.3%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,149 +9,151 @@ weight: 13
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0001|Two Sum|[Go]({{< relref "/ChapterFour/0001~0099/0001.Two-Sum.md" >}})|Easy| O(n)| O(n)||47.4%|
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.0%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||57.9%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.5%|
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium||||51.1%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard| O(n)| O(n)|❤️|26.9%|
|
||||
|0036|Valid Sudoku|[Go]({{< relref "/ChapterFour/0001~0099/0036.Valid-Sudoku.md" >}})|Medium| O(n^2)| O(n^2)||51.9%|
|
||||
|0041|First Missing Positive|[Go]({{< relref "/ChapterFour/0001~0099/0041.First-Missing-Positive.md" >}})|Hard||||34.7%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium| O(n log n)| O(n)||61.1%|
|
||||
|0073|Set Matrix Zeroes|[Go]({{< relref "/ChapterFour/0001~0099/0073.Set-Matrix-Zeroes.md" >}})|Medium||||45.5%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|37.0%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||54.5%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||51.7%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard||||25.2%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard||||33.1%|
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium||||47.6%|
|
||||
|0138|Copy List with Random Pointer|[Go]({{< relref "/ChapterFour/0100~0199/0138.Copy-List-with-Random-Pointer.md" >}})|Medium| O(n)| O(1)||43.3%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy||||43.8%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium||||41.1%|
|
||||
|0146|LRU Cache|[Go]({{< relref "/ChapterFour/0100~0199/0146.LRU-Cache.md" >}})|Medium||||37.6%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy||||46.4%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||60.9%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||42.4%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy| O(log n)| O(1)||51.9%|
|
||||
|0205|Isomorphic Strings|[Go]({{< relref "/ChapterFour/0200~0299/0205.Isomorphic-Strings.md" >}})|Easy| O(log n)| O(n)||41.4%|
|
||||
|0208|Implement Trie (Prefix Tree)|[Go]({{< relref "/ChapterFour/0200~0299/0208.Implement-Trie-Prefix-Tree.md" >}})|Medium||||54.1%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy| O(n)| O(n)||57.9%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy| O(n)| O(n)||39.7%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.0%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy| O(n)| O(n) ||59.6%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||43.6%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||56.7%|
|
||||
|0290|Word Pattern|[Go]({{< relref "/ChapterFour/0200~0299/0290.Word-Pattern.md" >}})|Easy| O(n)| O(n) ||38.8%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium| O(n)| O(n) ||63.2%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||66.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||52.7%|
|
||||
|0387|First Unique Character in a String|[Go]({{< relref "/ChapterFour/0300~0399/0387.First-Unique-Character-in-a-String.md" >}})|Easy||||54.8%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.5%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.0%|
|
||||
|0409|Longest Palindrome|[Go]({{< relref "/ChapterFour/0400~0499/0409.Longest-Palindrome.md" >}})|Easy||||52.5%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium||||54.9%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.2%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium||||49.3%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||44.2%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium| O(n)| O(1) ||45.9%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium| O(n)| O(1) ||52.8%|
|
||||
|0448|Find All Numbers Disappeared in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0448.Find-All-Numbers-Disappeared-in-an-Array.md" >}})|Easy||||56.8%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium| O(n log n)| O(1) ||65.4%|
|
||||
|0454|4Sum II|[Go]({{< relref "/ChapterFour/0400~0499/0454.4Sum-II.md" >}})|Medium| O(n^2)| O(n) ||55.2%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||30.8%|
|
||||
|0460|LFU Cache|[Go]({{< relref "/ChapterFour/0400~0499/0460.LFU-Cache.md" >}})|Hard||||37.6%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard||||39.8%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||48.9%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy||||67.0%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||66.6%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||60.5%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||25.5%|
|
||||
|0525|Contiguous Array|[Go]({{< relref "/ChapterFour/0500~0599/0525.Contiguous-Array.md" >}})|Medium||||44.2%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||36.3%|
|
||||
|0535|Encode and Decode TinyURL|[Go]({{< relref "/ChapterFour/0500~0599/0535.Encode-and-Decode-TinyURL.md" >}})|Medium||||82.8%|
|
||||
|0554|Brick Wall|[Go]({{< relref "/ChapterFour/0500~0599/0554.Brick-Wall.md" >}})|Medium||||52.0%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium||||44.7%|
|
||||
|0575|Distribute Candies|[Go]({{< relref "/ChapterFour/0500~0599/0575.Distribute-Candies.md" >}})|Easy||||64.8%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||51.7%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.5%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.1%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||55.7%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||40.9%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium| O(n)| O(n) ||60.2%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||56.8%|
|
||||
|0676|Implement Magic Dictionary|[Go]({{< relref "/ChapterFour/0600~0699/0676.Implement-Magic-Dictionary.md" >}})|Medium| O(n)| O(n) ||55.9%|
|
||||
|0677|Map Sum Pairs|[Go]({{< relref "/ChapterFour/0600~0699/0677.Map-Sum-Pairs.md" >}})|Medium||||57.0%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Easy||||60.6%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.6%|
|
||||
|0697|Degree of an Array|[Go]({{< relref "/ChapterFour/0600~0699/0697.Degree-of-an-Array.md" >}})|Easy||||54.9%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||64.0%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.9%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.3%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium| O(n)| O(n) ||49.9%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard| O(n)| O(n) |❤️|51.2%|
|
||||
|0748|Shortest Completing Word|[Go]({{< relref "/ChapterFour/0700~0799/0748.Shortest-Completing-Word.md" >}})|Easy||||58.1%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||54.8%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium||||78.3%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium||||50.8%|
|
||||
|0771|Jewels and Stones|[Go]({{< relref "/ChapterFour/0700~0799/0771.Jewels-and-Stones.md" >}})|Easy||||87.3%|
|
||||
|0781|Rabbits in Forest|[Go]({{< relref "/ChapterFour/0700~0799/0781.Rabbits-in-Forest.md" >}})|Medium||||56.1%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.1%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||49.1%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||72.4%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.2%|
|
||||
|0001|Two Sum|[Go]({{< relref "/ChapterFour/0001~0099/0001.Two-Sum.md" >}})|Easy| O(n)| O(n)||47.9%|
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.5%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||58.5%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.7%|
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium||||52.2%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard| O(n)| O(n)|❤️|27.4%|
|
||||
|0036|Valid Sudoku|[Go]({{< relref "/ChapterFour/0001~0099/0036.Valid-Sudoku.md" >}})|Medium| O(n^2)| O(n^2)||53.6%|
|
||||
|0041|First Missing Positive|[Go]({{< relref "/ChapterFour/0001~0099/0041.First-Missing-Positive.md" >}})|Hard||||35.3%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium| O(n log n)| O(n)||62.5%|
|
||||
|0073|Set Matrix Zeroes|[Go]({{< relref "/ChapterFour/0001~0099/0073.Set-Matrix-Zeroes.md" >}})|Medium||||46.9%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|38.0%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||55.7%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||53.7%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard||||26.0%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard||||33.9%|
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium||||48.1%|
|
||||
|0138|Copy List with Random Pointer|[Go]({{< relref "/ChapterFour/0100~0199/0138.Copy-List-with-Random-Pointer.md" >}})|Medium| O(n)| O(1)||44.9%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy||||44.5%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium||||42.0%|
|
||||
|0146|LRU Cache|[Go]({{< relref "/ChapterFour/0100~0199/0146.LRU-Cache.md" >}})|Medium||||38.6%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy||||47.8%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||61.6%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||43.2%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy| O(log n)| O(1)||52.3%|
|
||||
|0205|Isomorphic Strings|[Go]({{< relref "/ChapterFour/0200~0299/0205.Isomorphic-Strings.md" >}})|Easy| O(log n)| O(n)||41.6%|
|
||||
|0208|Implement Trie (Prefix Tree)|[Go]({{< relref "/ChapterFour/0200~0299/0208.Implement-Trie-Prefix-Tree.md" >}})|Medium||||56.1%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy| O(n)| O(n)||59.2%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy| O(n)| O(n)||40.1%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.9%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy| O(n)| O(n) ||60.4%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||44.4%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||57.9%|
|
||||
|0290|Word Pattern|[Go]({{< relref "/ChapterFour/0200~0299/0290.Word-Pattern.md" >}})|Easy| O(n)| O(n) ||39.1%|
|
||||
|0299|Bulls and Cows|[Go]({{< relref "/ChapterFour/0200~0299/0299.Bulls-and-Cows.md" >}})|Medium||||46.3%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium| O(n)| O(n) ||63.9%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||67.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||53.9%|
|
||||
|0387|First Unique Character in a String|[Go]({{< relref "/ChapterFour/0300~0399/0387.First-Unique-Character-in-a-String.md" >}})|Easy||||55.8%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.9%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.3%|
|
||||
|0409|Longest Palindrome|[Go]({{< relref "/ChapterFour/0400~0499/0409.Longest-Palindrome.md" >}})|Easy||||52.9%|
|
||||
|0421|Maximum XOR of Two Numbers in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0421.Maximum-XOR-of-Two-Numbers-in-an-Array.md" >}})|Medium||||55.1%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.5%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium||||49.9%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||45.0%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium| O(n)| O(1) ||46.7%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium| O(n)| O(1) ||53.2%|
|
||||
|0448|Find All Numbers Disappeared in an Array|[Go]({{< relref "/ChapterFour/0400~0499/0448.Find-All-Numbers-Disappeared-in-an-Array.md" >}})|Easy||||58.2%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium| O(n log n)| O(1) ||66.9%|
|
||||
|0454|4Sum II|[Go]({{< relref "/ChapterFour/0400~0499/0454.4Sum-II.md" >}})|Medium| O(n^2)| O(n) ||55.6%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||31.1%|
|
||||
|0460|LFU Cache|[Go]({{< relref "/ChapterFour/0400~0499/0460.LFU-Cache.md" >}})|Hard||||38.5%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard||||40.3%|
|
||||
|0491|Increasing Subsequences|[Go]({{< relref "/ChapterFour/0400~0499/0491.Increasing-Subsequences.md" >}})|Medium||||49.7%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy||||68.8%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||67.2%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||61.5%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||26.3%|
|
||||
|0525|Contiguous Array|[Go]({{< relref "/ChapterFour/0500~0599/0525.Contiguous-Array.md" >}})|Medium||||44.6%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||37.1%|
|
||||
|0535|Encode and Decode TinyURL|[Go]({{< relref "/ChapterFour/0500~0599/0535.Encode-and-Decode-TinyURL.md" >}})|Medium||||83.1%|
|
||||
|0554|Brick Wall|[Go]({{< relref "/ChapterFour/0500~0599/0554.Brick-Wall.md" >}})|Medium||||52.2%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium||||44.3%|
|
||||
|0575|Distribute Candies|[Go]({{< relref "/ChapterFour/0500~0599/0575.Distribute-Candies.md" >}})|Easy||||65.2%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||52.2%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.9%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.4%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||57.0%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||41.1%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium| O(n)| O(n) ||61.1%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||58.1%|
|
||||
|0676|Implement Magic Dictionary|[Go]({{< relref "/ChapterFour/0600~0699/0676.Implement-Magic-Dictionary.md" >}})|Medium| O(n)| O(n) ||56.2%|
|
||||
|0677|Map Sum Pairs|[Go]({{< relref "/ChapterFour/0600~0699/0677.Map-Sum-Pairs.md" >}})|Medium||||56.9%|
|
||||
|0690|Employee Importance|[Go]({{< relref "/ChapterFour/0600~0699/0690.Employee-Importance.md" >}})|Medium||||62.0%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.9%|
|
||||
|0697|Degree of an Array|[Go]({{< relref "/ChapterFour/0600~0699/0697.Degree-of-an-Array.md" >}})|Easy||||55.3%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||63.8%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.8%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.1%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium| O(n)| O(n) ||50.3%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard| O(n)| O(n) |❤️|51.6%|
|
||||
|0748|Shortest Completing Word|[Go]({{< relref "/ChapterFour/0700~0799/0748.Shortest-Completing-Word.md" >}})|Easy||||58.5%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||55.1%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium||||78.4%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium||||51.3%|
|
||||
|0771|Jewels and Stones|[Go]({{< relref "/ChapterFour/0700~0799/0771.Jewels-and-Stones.md" >}})|Easy||||87.4%|
|
||||
|0781|Rabbits in Forest|[Go]({{< relref "/ChapterFour/0700~0799/0781.Rabbits-in-Forest.md" >}})|Medium||||55.8%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.8%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||50.0%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||73.3%|
|
||||
|0815|Bus Routes|[Go]({{< relref "/ChapterFour/0800~0899/0815.Bus-Routes.md" >}})|Hard||||44.7%|
|
||||
|0817|Linked List Components|[Go]({{< relref "/ChapterFour/0800~0899/0817.Linked-List-Components.md" >}})|Medium||||57.9%|
|
||||
|0819|Most Common Word|[Go]({{< relref "/ChapterFour/0800~0899/0819.Most-Common-Word.md" >}})|Easy||||45.4%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.0%|
|
||||
|0819|Most Common Word|[Go]({{< relref "/ChapterFour/0800~0899/0819.Most-Common-Word.md" >}})|Easy||||45.3%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.1%|
|
||||
|0823|Binary Trees With Factors|[Go]({{< relref "/ChapterFour/0800~0899/0823.Binary-Trees-With-Factors.md" >}})|Medium||||43.6%|
|
||||
|0884|Uncommon Words from Two Sentences|[Go]({{< relref "/ChapterFour/0800~0899/0884.Uncommon-Words-from-Two-Sentences.md" >}})|Easy||||64.7%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||59.6%|
|
||||
|0859|Buddy Strings|[Go]({{< relref "/ChapterFour/0800~0899/0859.Buddy-Strings.md" >}})|Easy||||28.7%|
|
||||
|0884|Uncommon Words from Two Sentences|[Go]({{< relref "/ChapterFour/0800~0899/0884.Uncommon-Words-from-Two-Sentences.md" >}})|Easy||||65.0%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||60.0%|
|
||||
|0890|Find and Replace Pattern|[Go]({{< relref "/ChapterFour/0800~0899/0890.Find-and-Replace-Pattern.md" >}})|Medium||||75.5%|
|
||||
|0895|Maximum Frequency Stack|[Go]({{< relref "/ChapterFour/0800~0899/0895.Maximum-Frequency-Stack.md" >}})|Hard| O(n)| O(n) ||63.8%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.2%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.8%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.7%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.8%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.1%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium| O(n)| O(n) |❤️|46.4%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.1%|
|
||||
|0961|N-Repeated Element in Size 2N Array|[Go]({{< relref "/ChapterFour/0900~0999/0961.N-Repeated-Element-in-Size-2N-Array.md" >}})|Easy||||75.0%|
|
||||
|0895|Maximum Frequency Stack|[Go]({{< relref "/ChapterFour/0800~0899/0895.Maximum-Frequency-Stack.md" >}})|Hard| O(n)| O(n) ||64.3%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.1%|
|
||||
|0911|Online Election|[Go]({{< relref "/ChapterFour/0900~0999/0911.Online-Election.md" >}})|Medium||||51.6%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.6%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.9%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.3%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium| O(n)| O(n) |❤️|47.5%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.2%|
|
||||
|0961|N-Repeated Element in Size 2N Array|[Go]({{< relref "/ChapterFour/0900~0999/0961.N-Repeated-Element-in-Size-2N-Array.md" >}})|Easy||||75.2%|
|
||||
|0966|Vowel Spellchecker|[Go]({{< relref "/ChapterFour/0900~0999/0966.Vowel-Spellchecker.md" >}})|Medium||||51.7%|
|
||||
|0970|Powerful Integers|[Go]({{< relref "/ChapterFour/0900~0999/0970.Powerful-Integers.md" >}})|Medium||||43.4%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||54.0%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||39.3%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard| O(n)| O(n) |❤️|51.9%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.8%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||56.4%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium||||44.8%|
|
||||
|1074|Number of Submatrices That Sum to Target|[Go]({{< relref "/ChapterFour/1000~1099/1074.Number-of-Submatrices-That-Sum-to-Target.md" >}})|Hard||||65.5%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||53.1%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||40.1%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard| O(n)| O(n) |❤️|52.8%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.5%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.2%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium||||45.0%|
|
||||
|1074|Number of Submatrices That Sum to Target|[Go]({{< relref "/ChapterFour/1000~1099/1074.Number-of-Submatrices-That-Sum-to-Target.md" >}})|Hard||||66.0%|
|
||||
|1122|Relative Sort Array|[Go]({{< relref "/ChapterFour/1100~1199/1122.Relative-Sort-Array.md" >}})|Easy||||67.9%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||68.6%|
|
||||
|1128|Number of Equivalent Domino Pairs|[Go]({{< relref "/ChapterFour/1100~1199/1128.Number-of-Equivalent-Domino-Pairs.md" >}})|Easy||||45.7%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||69.2%|
|
||||
|1128|Number of Equivalent Domino Pairs|[Go]({{< relref "/ChapterFour/1100~1199/1128.Number-of-Equivalent-Domino-Pairs.md" >}})|Easy||||45.9%|
|
||||
|1160|Find Words That Can Be Formed by Characters|[Go]({{< relref "/ChapterFour/1100~1199/1160.Find-Words-That-Can-Be-Formed-by-Characters.md" >}})|Easy||||67.8%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.6%|
|
||||
|1171|Remove Zero Sum Consecutive Nodes from Linked List|[Go]({{< relref "/ChapterFour/1100~1199/1171.Remove-Zero-Sum-Consecutive-Nodes-from-Linked-List.md" >}})|Medium||||41.8%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||40.7%|
|
||||
|1189|Maximum Number of Balloons|[Go]({{< relref "/ChapterFour/1100~1199/1189.Maximum-Number-of-Balloons.md" >}})|Easy||||62.0%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||49.8%|
|
||||
|1207|Unique Number of Occurrences|[Go]({{< relref "/ChapterFour/1200~1299/1207.Unique-Number-of-Occurrences.md" >}})|Easy||||72.3%|
|
||||
|1275|Find Winner on a Tic Tac Toe Game|[Go]({{< relref "/ChapterFour/1200~1299/1275.Find-Winner-on-a-Tic-Tac-Toe-Game.md" >}})|Easy||||53.0%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|
||||
|1171|Remove Zero Sum Consecutive Nodes from Linked List|[Go]({{< relref "/ChapterFour/1100~1199/1171.Remove-Zero-Sum-Consecutive-Nodes-from-Linked-List.md" >}})|Medium||||42.1%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||46.8%|
|
||||
|1189|Maximum Number of Balloons|[Go]({{< relref "/ChapterFour/1100~1199/1189.Maximum-Number-of-Balloons.md" >}})|Easy||||62.5%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||51.3%|
|
||||
|1207|Unique Number of Occurrences|[Go]({{< relref "/ChapterFour/1200~1299/1207.Unique-Number-of-Occurrences.md" >}})|Easy||||72.4%|
|
||||
|1275|Find Winner on a Tic Tac Toe Game|[Go]({{< relref "/ChapterFour/1200~1299/1275.Find-Winner-on-a-Tic-Tac-Toe-Game.md" >}})|Easy||||55.7%|
|
||||
|1396|Design Underground System|[Go]({{< relref "/ChapterFour/1300~1399/1396.Design-Underground-System.md" >}})|Medium||||71.7%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.2%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.3%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.6%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||61.9%|
|
||||
|1624|Largest Substring Between Two Equal Characters|[Go]({{< relref "/ChapterFour/1600~1699/1624.Largest-Substring-Between-Two-Equal-Characters.md" >}})|Easy||||58.7%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.4%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.9%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.5%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.7%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||62.3%|
|
||||
|1624|Largest Substring Between Two Equal Characters|[Go]({{< relref "/ChapterFour/1600~1699/1624.Largest-Substring-Between-Two-Equal-Characters.md" >}})|Easy||||59.1%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.9%|
|
||||
|1640|Check Array Formation Through Concatenation|[Go]({{< relref "/ChapterFour/1600~1699/1640.Check-Array-Formation-Through-Concatenation.md" >}})|Easy||||55.5%|
|
||||
|1656|Design an Ordered Stream|[Go]({{< relref "/ChapterFour/1600~1699/1656.Design-an-Ordered-Stream.md" >}})|Easy||||82.4%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.8%|
|
||||
|1656|Design an Ordered Stream|[Go]({{< relref "/ChapterFour/1600~1699/1656.Design-an-Ordered-Stream.md" >}})|Easy||||82.7%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.7%|
|
||||
|1658|Minimum Operations to Reduce X to Zero|[Go]({{< relref "/ChapterFour/1600~1699/1658.Minimum-Operations-to-Reduce-X-to-Zero.md" >}})|Medium||||33.3%|
|
||||
|1674|Minimum Moves to Make Array Complementary|[Go]({{< relref "/ChapterFour/1600~1699/1674.Minimum-Moves-to-Make-Array-Complementary.md" >}})|Medium||||36.6%|
|
||||
|1674|Minimum Moves to Make Array Complementary|[Go]({{< relref "/ChapterFour/1600~1699/1674.Minimum-Moves-to-Make-Array-Complementary.md" >}})|Medium||||36.9%|
|
||||
|1679|Max Number of K-Sum Pairs|[Go]({{< relref "/ChapterFour/1600~1699/1679.Max-Number-of-K-Sum-Pairs.md" >}})|Medium||||53.5%|
|
||||
|1684|Count the Number of Consistent Strings|[Go]({{< relref "/ChapterFour/1600~1699/1684.Count-the-Number-of-Consistent-Strings.md" >}})|Easy||||81.7%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.3%|
|
||||
|1742|Maximum Number of Balls in a Box|[Go]({{< relref "/ChapterFour/1700~1799/1742.Maximum-Number-of-Balls-in-a-Box.md" >}})|Easy||||73.1%|
|
||||
|1748|Sum of Unique Elements|[Go]({{< relref "/ChapterFour/1700~1799/1748.Sum-of-Unique-Elements.md" >}})|Easy||||74.8%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.2%|
|
||||
|1742|Maximum Number of Balls in a Box|[Go]({{< relref "/ChapterFour/1700~1799/1742.Maximum-Number-of-Balls-in-a-Box.md" >}})|Easy||||73.3%|
|
||||
|1748|Sum of Unique Elements|[Go]({{< relref "/ChapterFour/1700~1799/1748.Sum-of-Unique-Elements.md" >}})|Easy||||75.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -23,47 +23,47 @@ weight: 4
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0002|Add Two Numbers|[Go]({{< relref "/ChapterFour/0001~0099/0002.Add-Two-Numbers.md" >}})|Medium| O(n)| O(1)||36.6%|
|
||||
|0019|Remove Nth Node From End of List|[Go]({{< relref "/ChapterFour/0001~0099/0019.Remove-Nth-Node-From-End-of-List.md" >}})|Medium| O(n)| O(1)||36.6%|
|
||||
|0021|Merge Two Sorted Lists|[Go]({{< relref "/ChapterFour/0001~0099/0021.Merge-Two-Sorted-Lists.md" >}})|Easy| O(log n)| O(1)||57.4%|
|
||||
|0023|Merge k Sorted Lists|[Go]({{< relref "/ChapterFour/0001~0099/0023.Merge-k-Sorted-Lists.md" >}})|Hard| O(log n)| O(1)|❤️|44.2%|
|
||||
|0024|Swap Nodes in Pairs|[Go]({{< relref "/ChapterFour/0001~0099/0024.Swap-Nodes-in-Pairs.md" >}})|Medium| O(n)| O(1)||54.9%|
|
||||
|0025|Reverse Nodes in k-Group|[Go]({{< relref "/ChapterFour/0001~0099/0025.Reverse-Nodes-in-k-Group.md" >}})|Hard| O(log n)| O(1)|❤️|47.7%|
|
||||
|0061|Rotate List|[Go]({{< relref "/ChapterFour/0001~0099/0061.Rotate-List.md" >}})|Medium| O(n)| O(1)||32.6%|
|
||||
|0082|Remove Duplicates from Sorted List II|[Go]({{< relref "/ChapterFour/0001~0099/0082.Remove-Duplicates-from-Sorted-List-II.md" >}})|Medium| O(n)| O(1)||40.4%|
|
||||
|0083|Remove Duplicates from Sorted List|[Go]({{< relref "/ChapterFour/0001~0099/0083.Remove-Duplicates-from-Sorted-List.md" >}})|Easy| O(n)| O(1)||47.3%|
|
||||
|0086|Partition List|[Go]({{< relref "/ChapterFour/0001~0099/0086.Partition-List.md" >}})|Medium| O(n)| O(1)|❤️|45.9%|
|
||||
|0092|Reverse Linked List II|[Go]({{< relref "/ChapterFour/0001~0099/0092.Reverse-Linked-List-II.md" >}})|Medium| O(n)| O(1)|❤️|42.1%|
|
||||
|0109|Convert Sorted List to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0109.Convert-Sorted-List-to-Binary-Search-Tree.md" >}})|Medium| O(log n)| O(n)||53.0%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium||||54.6%|
|
||||
|0138|Copy List with Random Pointer|[Go]({{< relref "/ChapterFour/0100~0199/0138.Copy-List-with-Random-Pointer.md" >}})|Medium||||43.3%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy| O(n)| O(1)|❤️|43.8%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium| O(n)| O(1)|❤️|41.1%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium| O(n)| O(1)|❤️|42.9%|
|
||||
|0146|LRU Cache|[Go]({{< relref "/ChapterFour/0100~0199/0146.LRU-Cache.md" >}})|Medium||||37.6%|
|
||||
|0147|Insertion Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0147.Insertion-Sort-List.md" >}})|Medium| O(n)| O(1)|❤️|45.6%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium| O(n log n)| O(n)|❤️|48.1%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy| O(n)| O(1)|❤️|46.4%|
|
||||
|0203|Remove Linked List Elements|[Go]({{< relref "/ChapterFour/0200~0299/0203.Remove-Linked-List-Elements.md" >}})|Easy| O(n)| O(1)||40.4%|
|
||||
|0206|Reverse Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0206.Reverse-Linked-List.md" >}})|Easy| O(n)| O(1)||67.1%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy| O(n)| O(1)||43.7%|
|
||||
|0237|Delete Node in a Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0237.Delete-Node-in-a-Linked-List.md" >}})|Easy| O(n)| O(1)||69.1%|
|
||||
|0328|Odd Even Linked List|[Go]({{< relref "/ChapterFour/0300~0399/0328.Odd-Even-Linked-List.md" >}})|Medium| O(n)| O(1)||57.9%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium| O(n)| O(n)||57.3%|
|
||||
|0460|LFU Cache|[Go]({{< relref "/ChapterFour/0400~0499/0460.LFU-Cache.md" >}})|Hard||||37.6%|
|
||||
|0622|Design Circular Queue|[Go]({{< relref "/ChapterFour/0600~0699/0622.Design-Circular-Queue.md" >}})|Medium||||48.0%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||64.0%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.9%|
|
||||
|0707|Design Linked List|[Go]({{< relref "/ChapterFour/0700~0799/0707.Design-Linked-List.md" >}})|Medium| O(n)| O(1)||26.4%|
|
||||
|0725|Split Linked List in Parts|[Go]({{< relref "/ChapterFour/0700~0799/0725.Split-Linked-List-in-Parts.md" >}})|Medium| O(n)| O(1)||53.8%|
|
||||
|0002|Add Two Numbers|[Go]({{< relref "/ChapterFour/0001~0099/0002.Add-Two-Numbers.md" >}})|Medium| O(n)| O(1)||37.3%|
|
||||
|0019|Remove Nth Node From End of List|[Go]({{< relref "/ChapterFour/0001~0099/0019.Remove-Nth-Node-From-End-of-List.md" >}})|Medium| O(n)| O(1)||37.3%|
|
||||
|0021|Merge Two Sorted Lists|[Go]({{< relref "/ChapterFour/0001~0099/0021.Merge-Two-Sorted-Lists.md" >}})|Easy| O(log n)| O(1)||58.5%|
|
||||
|0023|Merge k Sorted Lists|[Go]({{< relref "/ChapterFour/0001~0099/0023.Merge-k-Sorted-Lists.md" >}})|Hard| O(log n)| O(1)|❤️|45.2%|
|
||||
|0024|Swap Nodes in Pairs|[Go]({{< relref "/ChapterFour/0001~0099/0024.Swap-Nodes-in-Pairs.md" >}})|Medium| O(n)| O(1)||56.2%|
|
||||
|0025|Reverse Nodes in k-Group|[Go]({{< relref "/ChapterFour/0001~0099/0025.Reverse-Nodes-in-k-Group.md" >}})|Hard| O(log n)| O(1)|❤️|49.0%|
|
||||
|0061|Rotate List|[Go]({{< relref "/ChapterFour/0001~0099/0061.Rotate-List.md" >}})|Medium| O(n)| O(1)||33.2%|
|
||||
|0082|Remove Duplicates from Sorted List II|[Go]({{< relref "/ChapterFour/0001~0099/0082.Remove-Duplicates-from-Sorted-List-II.md" >}})|Medium| O(n)| O(1)||41.5%|
|
||||
|0083|Remove Duplicates from Sorted List|[Go]({{< relref "/ChapterFour/0001~0099/0083.Remove-Duplicates-from-Sorted-List.md" >}})|Easy| O(n)| O(1)||48.0%|
|
||||
|0086|Partition List|[Go]({{< relref "/ChapterFour/0001~0099/0086.Partition-List.md" >}})|Medium| O(n)| O(1)|❤️|46.8%|
|
||||
|0092|Reverse Linked List II|[Go]({{< relref "/ChapterFour/0001~0099/0092.Reverse-Linked-List-II.md" >}})|Medium| O(n)| O(1)|❤️|42.6%|
|
||||
|0109|Convert Sorted List to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0109.Convert-Sorted-List-to-Binary-Search-Tree.md" >}})|Medium| O(log n)| O(n)||54.1%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium||||56.0%|
|
||||
|0138|Copy List with Random Pointer|[Go]({{< relref "/ChapterFour/0100~0199/0138.Copy-List-with-Random-Pointer.md" >}})|Medium||||44.9%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy| O(n)| O(1)|❤️|44.5%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium| O(n)| O(1)|❤️|42.0%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium| O(n)| O(1)|❤️|44.4%|
|
||||
|0146|LRU Cache|[Go]({{< relref "/ChapterFour/0100~0199/0146.LRU-Cache.md" >}})|Medium||||38.6%|
|
||||
|0147|Insertion Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0147.Insertion-Sort-List.md" >}})|Medium| O(n)| O(1)|❤️|46.3%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium| O(n log n)| O(n)|❤️|49.2%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy| O(n)| O(1)|❤️|47.8%|
|
||||
|0203|Remove Linked List Elements|[Go]({{< relref "/ChapterFour/0200~0299/0203.Remove-Linked-List-Elements.md" >}})|Easy| O(n)| O(1)||42.1%|
|
||||
|0206|Reverse Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0206.Reverse-Linked-List.md" >}})|Easy| O(n)| O(1)||68.5%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy| O(n)| O(1)||44.8%|
|
||||
|0237|Delete Node in a Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0237.Delete-Node-in-a-Linked-List.md" >}})|Easy| O(n)| O(1)||70.2%|
|
||||
|0328|Odd Even Linked List|[Go]({{< relref "/ChapterFour/0300~0399/0328.Odd-Even-Linked-List.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium| O(n)| O(n)||57.9%|
|
||||
|0460|LFU Cache|[Go]({{< relref "/ChapterFour/0400~0499/0460.LFU-Cache.md" >}})|Hard||||38.5%|
|
||||
|0622|Design Circular Queue|[Go]({{< relref "/ChapterFour/0600~0699/0622.Design-Circular-Queue.md" >}})|Medium||||48.2%|
|
||||
|0705|Design HashSet|[Go]({{< relref "/ChapterFour/0700~0799/0705.Design-HashSet.md" >}})|Easy||||63.8%|
|
||||
|0706|Design HashMap|[Go]({{< relref "/ChapterFour/0700~0799/0706.Design-HashMap.md" >}})|Easy||||63.8%|
|
||||
|0707|Design Linked List|[Go]({{< relref "/ChapterFour/0700~0799/0707.Design-Linked-List.md" >}})|Medium| O(n)| O(1)||26.5%|
|
||||
|0725|Split Linked List in Parts|[Go]({{< relref "/ChapterFour/0700~0799/0725.Split-Linked-List-in-Parts.md" >}})|Medium| O(n)| O(1)||56.2%|
|
||||
|0817|Linked List Components|[Go]({{< relref "/ChapterFour/0800~0899/0817.Linked-List-Components.md" >}})|Medium| O(n)| O(1)||57.9%|
|
||||
|0876|Middle of the Linked List|[Go]({{< relref "/ChapterFour/0800~0899/0876.Middle-of-the-Linked-List.md" >}})|Easy| O(n)| O(1)|❤️|69.7%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium| O(n)| O(1)||59.0%|
|
||||
|1171|Remove Zero Sum Consecutive Nodes from Linked List|[Go]({{< relref "/ChapterFour/1100~1199/1171.Remove-Zero-Sum-Consecutive-Nodes-from-Linked-List.md" >}})|Medium||||41.8%|
|
||||
|1290|Convert Binary Number in a Linked List to Integer|[Go]({{< relref "/ChapterFour/1200~1299/1290.Convert-Binary-Number-in-a-Linked-List-to-Integer.md" >}})|Easy||||81.7%|
|
||||
|1669|Merge In Between Linked Lists|[Go]({{< relref "/ChapterFour/1600~1699/1669.Merge-In-Between-Linked-Lists.md" >}})|Medium||||74.8%|
|
||||
|1670|Design Front Middle Back Queue|[Go]({{< relref "/ChapterFour/1600~1699/1670.Design-Front-Middle-Back-Queue.md" >}})|Medium||||54.7%|
|
||||
|1721|Swapping Nodes in a Linked List|[Go]({{< relref "/ChapterFour/1700~1799/1721.Swapping-Nodes-in-a-Linked-List.md" >}})|Medium||||66.3%|
|
||||
|0876|Middle of the Linked List|[Go]({{< relref "/ChapterFour/0800~0899/0876.Middle-of-the-Linked-List.md" >}})|Easy| O(n)| O(1)|❤️|70.8%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium| O(n)| O(1)||59.3%|
|
||||
|1171|Remove Zero Sum Consecutive Nodes from Linked List|[Go]({{< relref "/ChapterFour/1100~1199/1171.Remove-Zero-Sum-Consecutive-Nodes-from-Linked-List.md" >}})|Medium||||42.1%|
|
||||
|1290|Convert Binary Number in a Linked List to Integer|[Go]({{< relref "/ChapterFour/1200~1299/1290.Convert-Binary-Number-in-a-Linked-List-to-Integer.md" >}})|Easy||||81.8%|
|
||||
|1669|Merge In Between Linked Lists|[Go]({{< relref "/ChapterFour/1600~1699/1669.Merge-In-Between-Linked-Lists.md" >}})|Medium||||74.7%|
|
||||
|1670|Design Front Middle Back Queue|[Go]({{< relref "/ChapterFour/1600~1699/1670.Design-Front-Middle-Back-Queue.md" >}})|Medium||||55.0%|
|
||||
|1721|Swapping Nodes in a Linked List|[Go]({{< relref "/ChapterFour/1700~1799/1721.Swapping-Nodes-in-a-Linked-List.md" >}})|Medium||||66.0%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,129 +9,133 @@ weight: 12
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0002|Add Two Numbers|[Go]({{< relref "/ChapterFour/0001~0099/0002.Add-Two-Numbers.md" >}})|Medium| O(n)| O(1)||36.6%|
|
||||
|0007|Reverse Integer|[Go]({{< relref "/ChapterFour/0001~0099/0007.Reverse-Integer.md" >}})|Easy||||26.1%|
|
||||
|0009|Palindrome Number|[Go]({{< relref "/ChapterFour/0001~0099/0009.Palindrome-Number.md" >}})|Easy||||51.0%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||57.9%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.5%|
|
||||
|0002|Add Two Numbers|[Go]({{< relref "/ChapterFour/0001~0099/0002.Add-Two-Numbers.md" >}})|Medium| O(n)| O(1)||37.3%|
|
||||
|0007|Reverse Integer|[Go]({{< relref "/ChapterFour/0001~0099/0007.Reverse-Integer.md" >}})|Medium||||26.2%|
|
||||
|0009|Palindrome Number|[Go]({{< relref "/ChapterFour/0001~0099/0009.Palindrome-Number.md" >}})|Easy||||51.7%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||58.5%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.7%|
|
||||
|0029|Divide Two Integers|[Go]({{< relref "/ChapterFour/0001~0099/0029.Divide-Two-Integers.md" >}})|Medium||||17.0%|
|
||||
|0043|Multiply Strings|[Go]({{< relref "/ChapterFour/0001~0099/0043.Multiply-Strings.md" >}})|Medium||||35.7%|
|
||||
|0048|Rotate Image|[Go]({{< relref "/ChapterFour/0001~0099/0048.Rotate-Image.md" >}})|Medium||||62.8%|
|
||||
|0050|Pow(x, n)|[Go]({{< relref "/ChapterFour/0001~0099/0050.Powx-n.md" >}})|Medium| O(log n)| O(1)||31.4%|
|
||||
|0060|Permutation Sequence|[Go]({{< relref "/ChapterFour/0001~0099/0060.Permutation-Sequence.md" >}})|Hard| O(n log n)| O(1)||40.4%|
|
||||
|0062|Unique Paths|[Go]({{< relref "/ChapterFour/0001~0099/0062.Unique-Paths.md" >}})|Medium||||57.3%|
|
||||
|0066|Plus One|[Go]({{< relref "/ChapterFour/0001~0099/0066.Plus-One.md" >}})|Easy||||42.0%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||48.3%|
|
||||
|0069|Sqrt(x)|[Go]({{< relref "/ChapterFour/0001~0099/0069.Sqrtx.md" >}})|Easy| O(log n)| O(1)||35.9%|
|
||||
|0070|Climbing Stairs|[Go]({{< relref "/ChapterFour/0001~0099/0070.Climbing-Stairs.md" >}})|Easy||||49.2%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium||||53.7%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium||||55.6%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium||||40.0%|
|
||||
|0168|Excel Sheet Column Title|[Go]({{< relref "/ChapterFour/0100~0199/0168.Excel-Sheet-Column-Title.md" >}})|Easy||||32.5%|
|
||||
|0171|Excel Sheet Column Number|[Go]({{< relref "/ChapterFour/0100~0199/0171.Excel-Sheet-Column-Number.md" >}})|Easy||||57.9%|
|
||||
|0172|Factorial Trailing Zeroes|[Go]({{< relref "/ChapterFour/0100~0199/0172.Factorial-Trailing-Zeroes.md" >}})|Easy||||39.5%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||36.8%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy| O(log n)| O(1)||51.9%|
|
||||
|0204|Count Primes|[Go]({{< relref "/ChapterFour/0200~0299/0204.Count-Primes.md" >}})|Easy||||32.8%|
|
||||
|0223|Rectangle Area|[Go]({{< relref "/ChapterFour/0200~0299/0223.Rectangle-Area.md" >}})|Medium||||38.9%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard| O(n)| O(n)||38.9%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||39.4%|
|
||||
|0231|Power of Two|[Go]({{< relref "/ChapterFour/0200~0299/0231.Power-of-Two.md" >}})|Easy| O(1)| O(1)||43.8%|
|
||||
|0258|Add Digits|[Go]({{< relref "/ChapterFour/0200~0299/0258.Add-Digits.md" >}})|Easy||||59.4%|
|
||||
|0263|Ugly Number|[Go]({{< relref "/ChapterFour/0200~0299/0263.Ugly-Number.md" >}})|Easy| O(log n)| O(1)||41.7%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||43.6%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||56.7%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||50.1%|
|
||||
|0326|Power of Three|[Go]({{< relref "/ChapterFour/0300~0399/0326.Power-of-Three.md" >}})|Easy| O(1)| O(1)||42.6%|
|
||||
|0342|Power of Four|[Go]({{< relref "/ChapterFour/0300~0399/0342.Power-of-Four.md" >}})|Easy||||42.4%|
|
||||
|0343|Integer Break|[Go]({{< relref "/ChapterFour/0300~0399/0343.Integer-Break.md" >}})|Medium| O(n^2)| O(n)||51.8%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||49.6%|
|
||||
|0367|Valid Perfect Square|[Go]({{< relref "/ChapterFour/0300~0399/0367.Valid-Perfect-Square.md" >}})|Easy||||42.5%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||38.8%|
|
||||
|0043|Multiply Strings|[Go]({{< relref "/ChapterFour/0001~0099/0043.Multiply-Strings.md" >}})|Medium||||36.9%|
|
||||
|0048|Rotate Image|[Go]({{< relref "/ChapterFour/0001~0099/0048.Rotate-Image.md" >}})|Medium||||64.4%|
|
||||
|0050|Pow(x, n)|[Go]({{< relref "/ChapterFour/0001~0099/0050.Powx-n.md" >}})|Medium| O(log n)| O(1)||31.7%|
|
||||
|0060|Permutation Sequence|[Go]({{< relref "/ChapterFour/0001~0099/0060.Permutation-Sequence.md" >}})|Hard| O(n log n)| O(1)||41.1%|
|
||||
|0062|Unique Paths|[Go]({{< relref "/ChapterFour/0001~0099/0062.Unique-Paths.md" >}})|Medium||||58.6%|
|
||||
|0066|Plus One|[Go]({{< relref "/ChapterFour/0001~0099/0066.Plus-One.md" >}})|Easy||||42.2%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||49.0%|
|
||||
|0069|Sqrt(x)|[Go]({{< relref "/ChapterFour/0001~0099/0069.Sqrtx.md" >}})|Easy| O(log n)| O(1)||36.0%|
|
||||
|0070|Climbing Stairs|[Go]({{< relref "/ChapterFour/0001~0099/0070.Climbing-Stairs.md" >}})|Easy||||50.2%|
|
||||
|0089|Gray Code|[Go]({{< relref "/ChapterFour/0001~0099/0089.Gray-Code.md" >}})|Medium||||54.3%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium||||57.3%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium||||40.9%|
|
||||
|0168|Excel Sheet Column Title|[Go]({{< relref "/ChapterFour/0100~0199/0168.Excel-Sheet-Column-Title.md" >}})|Easy||||33.1%|
|
||||
|0171|Excel Sheet Column Number|[Go]({{< relref "/ChapterFour/0100~0199/0171.Excel-Sheet-Column-Number.md" >}})|Easy||||58.6%|
|
||||
|0172|Factorial Trailing Zeroes|[Go]({{< relref "/ChapterFour/0100~0199/0172.Factorial-Trailing-Zeroes.md" >}})|Medium||||40.0%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||37.3%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy| O(log n)| O(1)||52.3%|
|
||||
|0204|Count Primes|[Go]({{< relref "/ChapterFour/0200~0299/0204.Count-Primes.md" >}})|Medium||||32.8%|
|
||||
|0223|Rectangle Area|[Go]({{< relref "/ChapterFour/0200~0299/0223.Rectangle-Area.md" >}})|Medium||||39.5%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard| O(n)| O(n)||39.7%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||40.1%|
|
||||
|0231|Power of Two|[Go]({{< relref "/ChapterFour/0200~0299/0231.Power-of-Two.md" >}})|Easy| O(1)| O(1)||44.1%|
|
||||
|0258|Add Digits|[Go]({{< relref "/ChapterFour/0200~0299/0258.Add-Digits.md" >}})|Easy||||59.9%|
|
||||
|0263|Ugly Number|[Go]({{< relref "/ChapterFour/0200~0299/0263.Ugly-Number.md" >}})|Easy| O(log n)| O(1)||41.8%|
|
||||
|0264|Ugly Number II|[Go]({{< relref "/ChapterFour/0200~0299/0264.Ugly-Number-II.md" >}})|Medium||||44.4%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||57.9%|
|
||||
|0279|Perfect Squares|[Go]({{< relref "/ChapterFour/0200~0299/0279.Perfect-Squares.md" >}})|Medium||||51.2%|
|
||||
|0319|Bulb Switcher|[Go]({{< relref "/ChapterFour/0300~0399/0319.Bulb-Switcher.md" >}})|Medium||||46.6%|
|
||||
|0326|Power of Three|[Go]({{< relref "/ChapterFour/0300~0399/0326.Power-of-Three.md" >}})|Easy| O(1)| O(1)||42.9%|
|
||||
|0342|Power of Four|[Go]({{< relref "/ChapterFour/0300~0399/0342.Power-of-Four.md" >}})|Easy||||42.9%|
|
||||
|0343|Integer Break|[Go]({{< relref "/ChapterFour/0300~0399/0343.Integer-Break.md" >}})|Medium| O(n^2)| O(n)||52.8%|
|
||||
|0357|Count Numbers with Unique Digits|[Go]({{< relref "/ChapterFour/0300~0399/0357.Count-Numbers-with-Unique-Digits.md" >}})|Medium| O(1)| O(1)||50.0%|
|
||||
|0367|Valid Perfect Square|[Go]({{< relref "/ChapterFour/0300~0399/0367.Valid-Perfect-Square.md" >}})|Easy||||42.7%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||40.1%|
|
||||
|0371|Sum of Two Integers|[Go]({{< relref "/ChapterFour/0300~0399/0371.Sum-of-Two-Integers.md" >}})|Medium||||50.7%|
|
||||
|0372|Super Pow|[Go]({{< relref "/ChapterFour/0300~0399/0372.Super-Pow.md" >}})|Medium||||37.1%|
|
||||
|0405|Convert a Number to Hexadecimal|[Go]({{< relref "/ChapterFour/0400~0499/0405.Convert-a-Number-to-Hexadecimal.md" >}})|Easy||||45.0%|
|
||||
|0412|Fizz Buzz|[Go]({{< relref "/ChapterFour/0400~0499/0412.Fizz-Buzz.md" >}})|Easy||||64.7%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.2%|
|
||||
|0441|Arranging Coins|[Go]({{< relref "/ChapterFour/0400~0499/0441.Arranging-Coins.md" >}})|Easy||||43.0%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium||||57.3%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium||||52.8%|
|
||||
|0453|Minimum Moves to Equal Array Elements|[Go]({{< relref "/ChapterFour/0400~0499/0453.Minimum-Moves-to-Equal-Array-Elements.md" >}})|Easy||||51.9%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||55.7%|
|
||||
|0470|Implement Rand10() Using Rand7()|[Go]({{< relref "/ChapterFour/0400~0499/0470.Implement-Rand10-Using-Rand7.md" >}})|Medium||||46.2%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium||||51.1%|
|
||||
|0372|Super Pow|[Go]({{< relref "/ChapterFour/0300~0399/0372.Super-Pow.md" >}})|Medium||||37.5%|
|
||||
|0384|Shuffle an Array|[Go]({{< relref "/ChapterFour/0300~0399/0384.Shuffle-an-Array.md" >}})|Medium||||56.1%|
|
||||
|0405|Convert a Number to Hexadecimal|[Go]({{< relref "/ChapterFour/0400~0499/0405.Convert-a-Number-to-Hexadecimal.md" >}})|Easy||||45.3%|
|
||||
|0412|Fizz Buzz|[Go]({{< relref "/ChapterFour/0400~0499/0412.Fizz-Buzz.md" >}})|Easy||||65.5%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.5%|
|
||||
|0441|Arranging Coins|[Go]({{< relref "/ChapterFour/0400~0499/0441.Arranging-Coins.md" >}})|Easy||||44.7%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium||||57.9%|
|
||||
|0447|Number of Boomerangs|[Go]({{< relref "/ChapterFour/0400~0499/0447.Number-of-Boomerangs.md" >}})|Medium||||53.2%|
|
||||
|0453|Minimum Moves to Equal Array Elements|[Go]({{< relref "/ChapterFour/0400~0499/0453.Minimum-Moves-to-Equal-Array-Elements.md" >}})|Medium||||52.8%|
|
||||
|0458|Poor Pigs|[Go]({{< relref "/ChapterFour/0400~0499/0458.Poor-Pigs.md" >}})|Hard||||55.2%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||56.2%|
|
||||
|0470|Implement Rand10() Using Rand7()|[Go]({{< relref "/ChapterFour/0400~0499/0470.Implement-Rand10-Using-Rand7.md" >}})|Medium||||46.4%|
|
||||
|0477|Total Hamming Distance|[Go]({{< relref "/ChapterFour/0400~0499/0477.Total-Hamming-Distance.md" >}})|Medium||||51.6%|
|
||||
|0478|Generate Random Point in a Circle|[Go]({{< relref "/ChapterFour/0400~0499/0478.Generate-Random-Point-in-a-Circle.md" >}})|Medium||||39.1%|
|
||||
|0483|Smallest Good Base|[Go]({{< relref "/ChapterFour/0400~0499/0483.Smallest-Good-Base.md" >}})|Hard||||36.9%|
|
||||
|0483|Smallest Good Base|[Go]({{< relref "/ChapterFour/0400~0499/0483.Smallest-Good-Base.md" >}})|Hard||||37.4%|
|
||||
|0492|Construct the Rectangle|[Go]({{< relref "/ChapterFour/0400~0499/0492.Construct-the-Rectangle.md" >}})|Easy||||51.9%|
|
||||
|0497|Random Point in Non-overlapping Rectangles|[Go]({{< relref "/ChapterFour/0400~0499/0497.Random-Point-in-Non-overlapping-Rectangles.md" >}})|Medium||||39.1%|
|
||||
|0507|Perfect Number|[Go]({{< relref "/ChapterFour/0500~0599/0507.Perfect-Number.md" >}})|Easy||||36.9%|
|
||||
|0507|Perfect Number|[Go]({{< relref "/ChapterFour/0500~0599/0507.Perfect-Number.md" >}})|Easy||||37.3%|
|
||||
|0509|Fibonacci Number|[Go]({{< relref "/ChapterFour/0500~0599/0509.Fibonacci-Number.md" >}})|Easy||||67.8%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||25.5%|
|
||||
|0528|Random Pick with Weight|[Go]({{< relref "/ChapterFour/0500~0599/0528.Random-Pick-with-Weight.md" >}})|Medium||||45.2%|
|
||||
|0537|Complex Number Multiplication|[Go]({{< relref "/ChapterFour/0500~0599/0537.Complex-Number-Multiplication.md" >}})|Medium||||68.6%|
|
||||
|0598|Range Addition II|[Go]({{< relref "/ChapterFour/0500~0599/0598.Range-Addition-II.md" >}})|Easy||||50.7%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy| O(n)| O(1)||46.6%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||33.0%|
|
||||
|0667|Beautiful Arrangement II|[Go]({{< relref "/ChapterFour/0600~0699/0667.Beautiful-Arrangement-II.md" >}})|Medium||||59.0%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard||||33.3%|
|
||||
|0762|Prime Number of Set Bits in Binary Representation|[Go]({{< relref "/ChapterFour/0700~0799/0762.Prime-Number-of-Set-Bits-in-Binary-Representation.md" >}})|Easy||||65.3%|
|
||||
|0775|Global and Local Inversions|[Go]({{< relref "/ChapterFour/0700~0799/0775.Global-and-Local-Inversions.md" >}})|Medium||||45.9%|
|
||||
|0781|Rabbits in Forest|[Go]({{< relref "/ChapterFour/0700~0799/0781.Rabbits-in-Forest.md" >}})|Medium||||56.1%|
|
||||
|0793|Preimage Size of Factorial Zeroes Function|[Go]({{< relref "/ChapterFour/0700~0799/0793.Preimage-Size-of-Factorial-Zeroes-Function.md" >}})|Hard||||40.8%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||51.2%|
|
||||
|0812|Largest Triangle Area|[Go]({{< relref "/ChapterFour/0800~0899/0812.Largest-Triangle-Area.md" >}})|Easy||||59.4%|
|
||||
|0836|Rectangle Overlap|[Go]({{< relref "/ChapterFour/0800~0899/0836.Rectangle-Overlap.md" >}})|Easy||||42.8%|
|
||||
|0869|Reordered Power of 2|[Go]({{< relref "/ChapterFour/0800~0899/0869.Reordered-Power-of-2.md" >}})|Medium||||61.2%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.3%|
|
||||
|0878|Nth Magical Number|[Go]({{< relref "/ChapterFour/0800~0899/0878.Nth-Magical-Number.md" >}})|Hard||||29.3%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||26.9%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard| O(n log n)| O(1)||33.5%|
|
||||
|0892|Surface Area of 3D Shapes|[Go]({{< relref "/ChapterFour/0800~0899/0892.Surface-Area-of-3D-Shapes.md" >}})|Easy||||60.4%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||31.5%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.7%|
|
||||
|0920|Number of Music Playlists|[Go]({{< relref "/ChapterFour/0900~0999/0920.Number-of-Music-Playlists.md" >}})|Hard||||48.5%|
|
||||
|0523|Continuous Subarray Sum|[Go]({{< relref "/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md" >}})|Medium||||26.3%|
|
||||
|0528|Random Pick with Weight|[Go]({{< relref "/ChapterFour/0500~0599/0528.Random-Pick-with-Weight.md" >}})|Medium||||45.7%|
|
||||
|0537|Complex Number Multiplication|[Go]({{< relref "/ChapterFour/0500~0599/0537.Complex-Number-Multiplication.md" >}})|Medium||||70.9%|
|
||||
|0598|Range Addition II|[Go]({{< relref "/ChapterFour/0500~0599/0598.Range-Addition-II.md" >}})|Easy||||54.3%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy| O(n)| O(1)||46.7%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||34.7%|
|
||||
|0667|Beautiful Arrangement II|[Go]({{< relref "/ChapterFour/0600~0699/0667.Beautiful-Arrangement-II.md" >}})|Medium||||59.2%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard||||33.1%|
|
||||
|0762|Prime Number of Set Bits in Binary Representation|[Go]({{< relref "/ChapterFour/0700~0799/0762.Prime-Number-of-Set-Bits-in-Binary-Representation.md" >}})|Easy||||65.9%|
|
||||
|0775|Global and Local Inversions|[Go]({{< relref "/ChapterFour/0700~0799/0775.Global-and-Local-Inversions.md" >}})|Medium||||45.7%|
|
||||
|0781|Rabbits in Forest|[Go]({{< relref "/ChapterFour/0700~0799/0781.Rabbits-in-Forest.md" >}})|Medium||||55.8%|
|
||||
|0793|Preimage Size of Factorial Zeroes Function|[Go]({{< relref "/ChapterFour/0700~0799/0793.Preimage-Size-of-Factorial-Zeroes-Function.md" >}})|Hard||||41.1%|
|
||||
|0810|Chalkboard XOR Game|[Go]({{< relref "/ChapterFour/0800~0899/0810.Chalkboard-XOR-Game.md" >}})|Hard||||52.1%|
|
||||
|0812|Largest Triangle Area|[Go]({{< relref "/ChapterFour/0800~0899/0812.Largest-Triangle-Area.md" >}})|Easy||||59.5%|
|
||||
|0836|Rectangle Overlap|[Go]({{< relref "/ChapterFour/0800~0899/0836.Rectangle-Overlap.md" >}})|Easy||||42.9%|
|
||||
|0869|Reordered Power of 2|[Go]({{< relref "/ChapterFour/0800~0899/0869.Reordered-Power-of-2.md" >}})|Medium||||61.3%|
|
||||
|0877|Stone Game|[Go]({{< relref "/ChapterFour/0800~0899/0877.Stone-Game.md" >}})|Medium||||68.7%|
|
||||
|0878|Nth Magical Number|[Go]({{< relref "/ChapterFour/0800~0899/0878.Nth-Magical-Number.md" >}})|Hard||||29.6%|
|
||||
|0887|Super Egg Drop|[Go]({{< relref "/ChapterFour/0800~0899/0887.Super-Egg-Drop.md" >}})|Hard||||27.0%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard| O(n log n)| O(1)||34.1%|
|
||||
|0892|Surface Area of 3D Shapes|[Go]({{< relref "/ChapterFour/0800~0899/0892.Surface-Area-of-3D-Shapes.md" >}})|Easy||||60.9%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||32.0%|
|
||||
|0914|X of a Kind in a Deck of Cards|[Go]({{< relref "/ChapterFour/0900~0999/0914.X-of-a-Kind-in-a-Deck-of-Cards.md" >}})|Easy||||33.6%|
|
||||
|0920|Number of Music Playlists|[Go]({{< relref "/ChapterFour/0900~0999/0920.Number-of-Music-Playlists.md" >}})|Hard||||48.8%|
|
||||
|0927|Three Equal Parts|[Go]({{< relref "/ChapterFour/0900~0999/0927.Three-Equal-Parts.md" >}})|Hard||||39.2%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy| O(n)| O(1)||74.6%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard||||36.6%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy| O(n)| O(1)||75.1%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard||||40.4%|
|
||||
|0970|Powerful Integers|[Go]({{< relref "/ChapterFour/0900~0999/0970.Powerful-Integers.md" >}})|Medium||||43.4%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium||||65.2%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||59.6%|
|
||||
|0989|Add to Array-Form of Integer|[Go]({{< relref "/ChapterFour/0900~0999/0989.Add-to-Array-Form-of-Integer.md" >}})|Easy||||45.1%|
|
||||
|0991|Broken Calculator|[Go]({{< relref "/ChapterFour/0900~0999/0991.Broken-Calculator.md" >}})|Medium||||49.9%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||48.7%|
|
||||
|1006|Clumsy Factorial|[Go]({{< relref "/ChapterFour/1000~1099/1006.Clumsy-Factorial.md" >}})|Medium||||54.2%|
|
||||
|1017|Convert to Base -2|[Go]({{< relref "/ChapterFour/1000~1099/1017.Convert-to-Base-2.md" >}})|Medium||||59.4%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium||||65.7%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||60.0%|
|
||||
|0989|Add to Array-Form of Integer|[Go]({{< relref "/ChapterFour/0900~0999/0989.Add-to-Array-Form-of-Integer.md" >}})|Easy||||45.2%|
|
||||
|0991|Broken Calculator|[Go]({{< relref "/ChapterFour/0900~0999/0991.Broken-Calculator.md" >}})|Medium||||50.0%|
|
||||
|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.1%|
|
||||
|1006|Clumsy Factorial|[Go]({{< relref "/ChapterFour/1000~1099/1006.Clumsy-Factorial.md" >}})|Medium||||54.3%|
|
||||
|1017|Convert to Base -2|[Go]({{< relref "/ChapterFour/1000~1099/1017.Convert-to-Base-2.md" >}})|Medium||||59.7%|
|
||||
|1025|Divisor Game|[Go]({{< relref "/ChapterFour/1000~1099/1025.Divisor-Game.md" >}})|Easy| O(1)| O(1)||66.4%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy||||68.6%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy||||68.8%|
|
||||
|1037|Valid Boomerang|[Go]({{< relref "/ChapterFour/1000~1099/1037.Valid-Boomerang.md" >}})|Easy||||37.4%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.8%|
|
||||
|1073|Adding Two Negabinary Numbers|[Go]({{< relref "/ChapterFour/1000~1099/1073.Adding-Two-Negabinary-Numbers.md" >}})|Medium||||34.9%|
|
||||
|1093|Statistics from a Large Sample|[Go]({{< relref "/ChapterFour/1000~1099/1093.Statistics-from-a-Large-Sample.md" >}})|Medium||||47.2%|
|
||||
|1104|Path In Zigzag Labelled Binary Tree|[Go]({{< relref "/ChapterFour/1100~1199/1104.Path-In-Zigzag-Labelled-Binary-Tree.md" >}})|Medium||||73.8%|
|
||||
|1137|N-th Tribonacci Number|[Go]({{< relref "/ChapterFour/1100~1199/1137.N-th-Tribonacci-Number.md" >}})|Easy||||56.2%|
|
||||
|1154|Day of the Year|[Go]({{< relref "/ChapterFour/1100~1199/1154.Day-of-the-Year.md" >}})|Easy||||50.0%|
|
||||
|1175|Prime Arrangements|[Go]({{< relref "/ChapterFour/1100~1199/1175.Prime-Arrangements.md" >}})|Easy||||51.9%|
|
||||
|1185|Day of the Week|[Go]({{< relref "/ChapterFour/1100~1199/1185.Day-of-the-Week.md" >}})|Easy||||59.9%|
|
||||
|1201|Ugly Number III|[Go]({{< relref "/ChapterFour/1200~1299/1201.Ugly-Number-III.md" >}})|Medium||||26.9%|
|
||||
|1217|Minimum Cost to Move Chips to The Same Position|[Go]({{< relref "/ChapterFour/1200~1299/1217.Minimum-Cost-to-Move-Chips-to-The-Same-Position.md" >}})|Easy||||70.6%|
|
||||
|1232|Check If It Is a Straight Line|[Go]({{< relref "/ChapterFour/1200~1299/1232.Check-If-It-Is-a-Straight-Line.md" >}})|Easy||||42.6%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.9%|
|
||||
|1073|Adding Two Negabinary Numbers|[Go]({{< relref "/ChapterFour/1000~1099/1073.Adding-Two-Negabinary-Numbers.md" >}})|Medium||||35.1%|
|
||||
|1093|Statistics from a Large Sample|[Go]({{< relref "/ChapterFour/1000~1099/1093.Statistics-from-a-Large-Sample.md" >}})|Medium||||46.4%|
|
||||
|1104|Path In Zigzag Labelled Binary Tree|[Go]({{< relref "/ChapterFour/1100~1199/1104.Path-In-Zigzag-Labelled-Binary-Tree.md" >}})|Medium||||74.0%|
|
||||
|1137|N-th Tribonacci Number|[Go]({{< relref "/ChapterFour/1100~1199/1137.N-th-Tribonacci-Number.md" >}})|Easy||||61.1%|
|
||||
|1154|Day of the Year|[Go]({{< relref "/ChapterFour/1100~1199/1154.Day-of-the-Year.md" >}})|Easy||||50.8%|
|
||||
|1175|Prime Arrangements|[Go]({{< relref "/ChapterFour/1100~1199/1175.Prime-Arrangements.md" >}})|Easy||||52.2%|
|
||||
|1185|Day of the Week|[Go]({{< relref "/ChapterFour/1100~1199/1185.Day-of-the-Week.md" >}})|Easy||||59.2%|
|
||||
|1201|Ugly Number III|[Go]({{< relref "/ChapterFour/1200~1299/1201.Ugly-Number-III.md" >}})|Medium||||27.4%|
|
||||
|1217|Minimum Cost to Move Chips to The Same Position|[Go]({{< relref "/ChapterFour/1200~1299/1217.Minimum-Cost-to-Move-Chips-to-The-Same-Position.md" >}})|Easy||||70.7%|
|
||||
|1232|Check If It Is a Straight Line|[Go]({{< relref "/ChapterFour/1200~1299/1232.Check-If-It-Is-a-Straight-Line.md" >}})|Easy||||42.3%|
|
||||
|1252|Cells with Odd Values in a Matrix|[Go]({{< relref "/ChapterFour/1200~1299/1252.Cells-with-Odd-Values-in-a-Matrix.md" >}})|Easy||||78.5%|
|
||||
|1266|Minimum Time Visiting All Points|[Go]({{< relref "/ChapterFour/1200~1299/1266.Minimum-Time-Visiting-All-Points.md" >}})|Easy||||79.2%|
|
||||
|1281|Subtract the Product and Sum of Digits of an Integer|[Go]({{< relref "/ChapterFour/1200~1299/1281.Subtract-the-Product-and-Sum-of-Digits-of-an-Integer.md" >}})|Easy||||85.7%|
|
||||
|1290|Convert Binary Number in a Linked List to Integer|[Go]({{< relref "/ChapterFour/1200~1299/1290.Convert-Binary-Number-in-a-Linked-List-to-Integer.md" >}})|Easy||||81.7%|
|
||||
|1290|Convert Binary Number in a Linked List to Integer|[Go]({{< relref "/ChapterFour/1200~1299/1290.Convert-Binary-Number-in-a-Linked-List-to-Integer.md" >}})|Easy||||81.8%|
|
||||
|1304|Find N Unique Integers Sum up to Zero|[Go]({{< relref "/ChapterFour/1300~1399/1304.Find-N-Unique-Integers-Sum-up-to-Zero.md" >}})|Easy||||76.6%|
|
||||
|1317|Convert Integer to the Sum of Two No-Zero Integers|[Go]({{< relref "/ChapterFour/1300~1399/1317.Convert-Integer-to-the-Sum-of-Two-No-Zero-Integers.md" >}})|Easy||||57.1%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.2%|
|
||||
|1486|XOR Operation in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1486.XOR-Operation-in-an-Array.md" >}})|Easy||||83.9%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.6%|
|
||||
|1551|Minimum Operations to Make Array Equal|[Go]({{< relref "/ChapterFour/1500~1599/1551.Minimum-Operations-to-Make-Array-Equal.md" >}})|Medium||||80.6%|
|
||||
|1573|Number of Ways to Split a String|[Go]({{< relref "/ChapterFour/1500~1599/1573.Number-of-Ways-to-Split-a-String.md" >}})|Medium||||31.4%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.3%|
|
||||
|1680|Concatenation of Consecutive Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1680.Concatenation-of-Consecutive-Binary-Numbers.md" >}})|Medium||||52.2%|
|
||||
|1685|Sum of Absolute Differences in a Sorted Array|[Go]({{< relref "/ChapterFour/1600~1699/1685.Sum-of-Absolute-Differences-in-a-Sorted-Array.md" >}})|Medium||||63.8%|
|
||||
|1688|Count of Matches in Tournament|[Go]({{< relref "/ChapterFour/1600~1699/1688.Count-of-Matches-in-Tournament.md" >}})|Easy||||82.1%|
|
||||
|1317|Convert Integer to the Sum of Two No-Zero Integers|[Go]({{< relref "/ChapterFour/1300~1399/1317.Convert-Integer-to-the-Sum-of-Two-No-Zero-Integers.md" >}})|Easy||||57.4%|
|
||||
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.9%|
|
||||
|1486|XOR Operation in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1486.XOR-Operation-in-an-Array.md" >}})|Easy||||84.0%|
|
||||
|1512|Number of Good Pairs|[Go]({{< relref "/ChapterFour/1500~1599/1512.Number-of-Good-Pairs.md" >}})|Easy||||87.7%|
|
||||
|1551|Minimum Operations to Make Array Equal|[Go]({{< relref "/ChapterFour/1500~1599/1551.Minimum-Operations-to-Make-Array-Equal.md" >}})|Medium||||80.7%|
|
||||
|1573|Number of Ways to Split a String|[Go]({{< relref "/ChapterFour/1500~1599/1573.Number-of-Ways-to-Split-a-String.md" >}})|Medium||||31.5%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.5%|
|
||||
|1680|Concatenation of Consecutive Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1680.Concatenation-of-Consecutive-Binary-Numbers.md" >}})|Medium||||52.5%|
|
||||
|1685|Sum of Absolute Differences in a Sorted Array|[Go]({{< relref "/ChapterFour/1600~1699/1685.Sum-of-Absolute-Differences-in-a-Sorted-Array.md" >}})|Medium||||64.6%|
|
||||
|1688|Count of Matches in Tournament|[Go]({{< relref "/ChapterFour/1600~1699/1688.Count-of-Matches-in-Tournament.md" >}})|Easy||||82.4%|
|
||||
|1690|Stone Game VII|[Go]({{< relref "/ChapterFour/1600~1699/1690.Stone-Game-VII.md" >}})|Medium||||58.8%|
|
||||
|1716|Calculate Money in Leetcode Bank|[Go]({{< relref "/ChapterFour/1700~1799/1716.Calculate-Money-in-Leetcode-Bank.md" >}})|Easy||||64.2%|
|
||||
|1742|Maximum Number of Balls in a Box|[Go]({{< relref "/ChapterFour/1700~1799/1742.Maximum-Number-of-Balls-in-a-Box.md" >}})|Easy||||73.1%|
|
||||
|1716|Calculate Money in Leetcode Bank|[Go]({{< relref "/ChapterFour/1700~1799/1716.Calculate-Money-in-Leetcode-Bank.md" >}})|Easy||||64.3%|
|
||||
|1742|Maximum Number of Balls in a Box|[Go]({{< relref "/ChapterFour/1700~1799/1742.Maximum-Number-of-Balls-in-a-Box.md" >}})|Easy||||73.3%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -37,18 +37,18 @@ weight: 18
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard| O(n log n)| O(n)|❤️|37.4%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium| O(1)| O(n)||37.9%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard| O(n log n)| O(n)||42.0%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard| O(n log n)| O(n)|❤️|36.2%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard| O(n log n)| O(n)||28.2%|
|
||||
|0699|Falling Squares|[Go]({{< relref "/ChapterFour/0600~0699/0699.Falling-Squares.md" >}})|Hard| O(n log n)| O(n)|❤️|43.5%|
|
||||
|0715|Range Module|[Go]({{< relref "/ChapterFour/0700~0799/0715.Range-Module.md" >}})|Hard| O(log n)| O(n)|❤️|42.0%|
|
||||
|0729|My Calendar I|[Go]({{< relref "/ChapterFour/0700~0799/0729.My-Calendar-I.md" >}})|Medium||||54.3%|
|
||||
|0732|My Calendar III|[Go]({{< relref "/ChapterFour/0700~0799/0732.My-Calendar-III.md" >}})|Hard| O(log n)| O(n)|❤️|64.2%|
|
||||
|0850|Rectangle Area II|[Go]({{< relref "/ChapterFour/0800~0899/0850.Rectangle-Area-II.md" >}})|Hard| O(n log n)| O(n)|❤️|48.8%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard| O(log n)| O(n)|❤️|41.5%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.0%|
|
||||
|0218|The Skyline Problem|[Go]({{< relref "/ChapterFour/0200~0299/0218.The-Skyline-Problem.md" >}})|Hard| O(n log n)| O(n)|❤️|37.9%|
|
||||
|0307|Range Sum Query - Mutable|[Go]({{< relref "/ChapterFour/0300~0399/0307.Range-Sum-Query-Mutable.md" >}})|Medium| O(1)| O(n)||38.3%|
|
||||
|0315|Count of Smaller Numbers After Self|[Go]({{< relref "/ChapterFour/0300~0399/0315.Count-of-Smaller-Numbers-After-Self.md" >}})|Hard| O(n log n)| O(n)||42.1%|
|
||||
|0327|Count of Range Sum|[Go]({{< relref "/ChapterFour/0300~0399/0327.Count-of-Range-Sum.md" >}})|Hard| O(n log n)| O(n)|❤️|36.0%|
|
||||
|0493|Reverse Pairs|[Go]({{< relref "/ChapterFour/0400~0499/0493.Reverse-Pairs.md" >}})|Hard| O(n log n)| O(n)||29.0%|
|
||||
|0699|Falling Squares|[Go]({{< relref "/ChapterFour/0600~0699/0699.Falling-Squares.md" >}})|Hard| O(n log n)| O(n)|❤️|43.6%|
|
||||
|0715|Range Module|[Go]({{< relref "/ChapterFour/0700~0799/0715.Range-Module.md" >}})|Hard| O(log n)| O(n)|❤️|42.6%|
|
||||
|0729|My Calendar I|[Go]({{< relref "/ChapterFour/0700~0799/0729.My-Calendar-I.md" >}})|Medium||||54.7%|
|
||||
|0732|My Calendar III|[Go]({{< relref "/ChapterFour/0700~0799/0732.My-Calendar-III.md" >}})|Hard| O(log n)| O(n)|❤️|65.6%|
|
||||
|0850|Rectangle Area II|[Go]({{< relref "/ChapterFour/0800~0899/0850.Rectangle-Area-II.md" >}})|Hard| O(n log n)| O(n)|❤️|52.8%|
|
||||
|1157|Online Majority Element In Subarray|[Go]({{< relref "/ChapterFour/1100~1199/1157.Online-Majority-Element-In-Subarray.md" >}})|Hard| O(log n)| O(n)|❤️|42.0%|
|
||||
|1649|Create Sorted Array through Instructions|[Go]({{< relref "/ChapterFour/1600~1699/1649.Create-Sorted-Array-through-Instructions.md" >}})|Hard||||37.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -29,37 +29,38 @@ weight: 17
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.0%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard||||26.9%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|37.0%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||42.4%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium||||40.8%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy||||39.7%|
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.5%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard||||27.4%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|38.0%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||43.2%|
|
||||
|0209|Minimum Size Subarray Sum|[Go]({{< relref "/ChapterFour/0200~0299/0209.Minimum-Size-Subarray-Sum.md" >}})|Medium||||41.8%|
|
||||
|0219|Contains Duplicate II|[Go]({{< relref "/ChapterFour/0200~0299/0219.Contains-Duplicate-II.md" >}})|Easy||||40.1%|
|
||||
|0220|Contains Duplicate III|[Go]({{< relref "/ChapterFour/0200~0299/0220.Contains-Duplicate-III.md" >}})|Medium||||21.5%|
|
||||
|0239|Sliding Window Maximum|[Go]({{< relref "/ChapterFour/0200~0299/0239.Sliding-Window-Maximum.md" >}})|Hard| O(n * k)| O(n)|❤️|45.3%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.0%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium| O(n)| O(1) ||49.3%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium||||45.9%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard| O(n * log k)| O(k)|❤️|39.8%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium| O(n)| O(1)|❤️|44.7%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||55.7%|
|
||||
|0643|Maximum Average Subarray I|[Go]({{< relref "/ChapterFour/0600~0699/0643.Maximum-Average-Subarray-I.md" >}})|Easy||||42.5%|
|
||||
|0713|Subarray Product Less Than K|[Go]({{< relref "/ChapterFour/0700~0799/0713.Subarray-Product-Less-Than-K.md" >}})|Medium||||41.2%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.1%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.6%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.2%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium||||46.4%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium| O(n)| O(1)|❤️|46.9%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard| O(n)| O(n)|❤️|51.9%|
|
||||
|0239|Sliding Window Maximum|[Go]({{< relref "/ChapterFour/0200~0299/0239.Sliding-Window-Maximum.md" >}})|Hard| O(n * k)| O(n)|❤️|45.8%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.3%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium| O(n)| O(1) ||49.9%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium||||46.7%|
|
||||
|0480|Sliding Window Median|[Go]({{< relref "/ChapterFour/0400~0499/0480.Sliding-Window-Median.md" >}})|Hard| O(n * log k)| O(k)|❤️|40.3%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium| O(n)| O(1)|❤️|44.3%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||57.0%|
|
||||
|0643|Maximum Average Subarray I|[Go]({{< relref "/ChapterFour/0600~0699/0643.Maximum-Average-Subarray-I.md" >}})|Easy||||42.9%|
|
||||
|0713|Subarray Product Less Than K|[Go]({{< relref "/ChapterFour/0700~0799/0713.Subarray-Product-Less-Than-K.md" >}})|Medium||||42.2%|
|
||||
|0718|Maximum Length of Repeated Subarray|[Go]({{< relref "/ChapterFour/0700~0799/0718.Maximum-Length-of-Repeated-Subarray.md" >}})|Medium||||51.3%|
|
||||
|0862|Shortest Subarray with Sum at Least K|[Go]({{< relref "/ChapterFour/0800~0899/0862.Shortest-Subarray-with-Sum-at-Least-K.md" >}})|Hard||||25.9%|
|
||||
|0904|Fruit Into Baskets|[Go]({{< relref "/ChapterFour/0900~0999/0904.Fruit-Into-Baskets.md" >}})|Medium||||43.1%|
|
||||
|0930|Binary Subarrays With Sum|[Go]({{< relref "/ChapterFour/0900~0999/0930.Binary-Subarrays-With-Sum.md" >}})|Medium||||47.5%|
|
||||
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium| O(n)| O(1)|❤️|47.5%|
|
||||
|0992|Subarrays with K Different Integers|[Go]({{< relref "/ChapterFour/0900~0999/0992.Subarrays-with-K-Different-Integers.md" >}})|Hard| O(n)| O(n)|❤️|52.8%|
|
||||
|0995|Minimum Number of K Consecutive Bit Flips|[Go]({{< relref "/ChapterFour/0900~0999/0995.Minimum-Number-of-K-Consecutive-Bit-Flips.md" >}})|Hard| O(n)| O(1)|❤️|50.4%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium| O(n)| O(1) ||61.0%|
|
||||
|1052|Grumpy Bookstore Owner|[Go]({{< relref "/ChapterFour/1000~1099/1052.Grumpy-Bookstore-Owner.md" >}})|Medium| O(n log n)| O(1) ||56.1%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.0%|
|
||||
|1234|Replace the Substring for Balanced String|[Go]({{< relref "/ChapterFour/1200~1299/1234.Replace-the-Substring-for-Balanced-String.md" >}})|Medium||||35.1%|
|
||||
|1423|Maximum Points You Can Obtain from Cards|[Go]({{< relref "/ChapterFour/1400~1499/1423.Maximum-Points-You-Can-Obtain-from-Cards.md" >}})|Medium||||48.9%|
|
||||
|1438|Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit|[Go]({{< relref "/ChapterFour/1400~1499/1438.Longest-Continuous-Subarray-With-Absolute-Diff-Less-Than-or-Equal-to-Limit.md" >}})|Medium||||45.0%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.3%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||41.9%|
|
||||
|1004|Max Consecutive Ones III|[Go]({{< relref "/ChapterFour/1000~1099/1004.Max-Consecutive-Ones-III.md" >}})|Medium| O(n)| O(1) ||61.8%|
|
||||
|1052|Grumpy Bookstore Owner|[Go]({{< relref "/ChapterFour/1000~1099/1052.Grumpy-Bookstore-Owner.md" >}})|Medium| O(n log n)| O(1) ||56.4%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.6%|
|
||||
|1234|Replace the Substring for Balanced String|[Go]({{< relref "/ChapterFour/1200~1299/1234.Replace-the-Substring-for-Balanced-String.md" >}})|Medium||||35.5%|
|
||||
|1423|Maximum Points You Can Obtain from Cards|[Go]({{< relref "/ChapterFour/1400~1499/1423.Maximum-Points-You-Can-Obtain-from-Cards.md" >}})|Medium||||49.5%|
|
||||
|1438|Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit|[Go]({{< relref "/ChapterFour/1400~1499/1438.Longest-Continuous-Subarray-With-Absolute-Diff-Less-Than-or-Equal-to-Limit.md" >}})|Medium||||45.4%|
|
||||
|1658|Minimum Operations to Reduce X to Zero|[Go]({{< relref "/ChapterFour/1600~1699/1658.Minimum-Operations-to-Reduce-X-to-Zero.md" >}})|Medium||||33.3%|
|
||||
|1695|Maximum Erasure Value|[Go]({{< relref "/ChapterFour/1600~1699/1695.Maximum-Erasure-Value.md" >}})|Medium||||52.2%|
|
||||
|1696|Jump Game VI|[Go]({{< relref "/ChapterFour/1600~1699/1696.Jump-Game-VI.md" >}})|Medium||||42.3%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -18,101 +18,101 @@ weight: 14
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium||||29.1%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium||||46.7%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium||||36.4%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium||||61.1%|
|
||||
|0056|Merge Intervals|[Go]({{< relref "/ChapterFour/0001~0099/0056.Merge-Intervals.md" >}})|Medium| O(n log n)| O(log n)||42.4%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|51.3%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy||||41.5%|
|
||||
|0147|Insertion Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0147.Insertion-Sort-List.md" >}})|Medium| O(n^2)| O(1) |❤️|45.6%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium|O(n log n)| O(log n)|❤️|48.1%|
|
||||
|0164|Maximum Gap|[Go]({{< relref "/ChapterFour/0100~0199/0164.Maximum-Gap.md" >}})|Hard| O(n log n)| O(log n) |❤️|40.1%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||60.9%|
|
||||
|0179|Largest Number|[Go]({{< relref "/ChapterFour/0100~0199/0179.Largest-Number.md" >}})|Medium| O(n log n)| O(log n) |❤️|31.5%|
|
||||
|0215|Kth Largest Element in an Array|[Go]({{< relref "/ChapterFour/0200~0299/0215.Kth-Largest-Element-in-an-Array.md" >}})|Medium||||60.4%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy||||57.9%|
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium||||30.0%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium||||46.9%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium||||36.8%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium||||62.5%|
|
||||
|0056|Merge Intervals|[Go]({{< relref "/ChapterFour/0001~0099/0056.Merge-Intervals.md" >}})|Medium| O(n log n)| O(log n)||43.4%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|53.0%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy||||42.4%|
|
||||
|0147|Insertion Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0147.Insertion-Sort-List.md" >}})|Medium| O(n^2)| O(1) |❤️|46.3%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium|O(n log n)| O(log n)|❤️|49.2%|
|
||||
|0164|Maximum Gap|[Go]({{< relref "/ChapterFour/0100~0199/0164.Maximum-Gap.md" >}})|Hard| O(n log n)| O(log n) |❤️|40.6%|
|
||||
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||61.6%|
|
||||
|0179|Largest Number|[Go]({{< relref "/ChapterFour/0100~0199/0179.Largest-Number.md" >}})|Medium| O(n log n)| O(log n) |❤️|32.1%|
|
||||
|0215|Kth Largest Element in an Array|[Go]({{< relref "/ChapterFour/0200~0299/0215.Kth-Largest-Element-in-an-Array.md" >}})|Medium||||61.6%|
|
||||
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy||||59.2%|
|
||||
|0220|Contains Duplicate III|[Go]({{< relref "/ChapterFour/0200~0299/0220.Contains-Duplicate-III.md" >}})|Medium| O(n log n)| O(1) |❤️|21.5%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.0%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy| O(n)| O(n) ||59.6%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||56.7%|
|
||||
|0274|H-Index|[Go]({{< relref "/ChapterFour/0200~0299/0274.H-Index.md" >}})|Medium| O(n)| O(n) ||36.7%|
|
||||
|0324|Wiggle Sort II|[Go]({{< relref "/ChapterFour/0300~0399/0324.Wiggle-Sort-II.md" >}})|Medium| O(n)| O(n)|❤️|31.2%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium||||63.2%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||66.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||52.7%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||38.7%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||38.8%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.0%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.5%|
|
||||
|0414|Third Maximum Number|[Go]({{< relref "/ChapterFour/0400~0499/0414.Third-Maximum-Number.md" >}})|Easy||||30.8%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||45.3%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||48.8%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium||||65.4%|
|
||||
|0455|Assign Cookies|[Go]({{< relref "/ChapterFour/0400~0499/0455.Assign-Cookies.md" >}})|Easy||||50.4%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||55.7%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.2%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium| O(n)| O(1) ||50.4%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||36.3%|
|
||||
|0561|Array Partition I|[Go]({{< relref "/ChapterFour/0500~0599/0561.Array-Partition-I.md" >}})|Easy||||74.3%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.3%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||51.7%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.0%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy||||46.6%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||55.7%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||40.9%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.3%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.6%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.3%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.2%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||49.9%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium| O(n log n)| O(log n) |❤️|50.8%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.1%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||49.1%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||39.8%|
|
||||
|0853|Car Fleet|[Go]({{< relref "/ChapterFour/0800~0899/0853.Car-Fleet.md" >}})|Medium| O(n log n)| O(log n) ||45.6%|
|
||||
|0869|Reordered Power of 2|[Go]({{< relref "/ChapterFour/0800~0899/0869.Reordered-Power-of-2.md" >}})|Medium||||61.2%|
|
||||
|0870|Advantage Shuffle|[Go]({{< relref "/ChapterFour/0800~0899/0870.Advantage-Shuffle.md" >}})|Medium||||50.8%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium||||49.3%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||59.6%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard||||33.5%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||31.5%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy| O(n)| O(1) ||70.7%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.1%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium| O(n log n)| O(log n) |❤️|69.1%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium| O(n log n)| O(log n) ||65.2%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||59.6%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy||||71.4%|
|
||||
|1005|Maximize Sum Of Array After K Negations|[Go]({{< relref "/ChapterFour/1000~1099/1005.Maximize-Sum-Of-Array-After-K-Negations.md" >}})|Easy||||52.3%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy| O(n^2)| O(1) ||68.6%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.8%|
|
||||
|1051|Height Checker|[Go]({{< relref "/ChapterFour/1000~1099/1051.Height-Checker.md" >}})|Easy||||73.3%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium| O(n log n)| O(log n) |❤️|44.8%|
|
||||
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.9%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy| O(n)| O(n) ||60.4%|
|
||||
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||57.9%|
|
||||
|0274|H-Index|[Go]({{< relref "/ChapterFour/0200~0299/0274.H-Index.md" >}})|Medium| O(n)| O(n) ||37.0%|
|
||||
|0324|Wiggle Sort II|[Go]({{< relref "/ChapterFour/0300~0399/0324.Wiggle-Sort-II.md" >}})|Medium| O(n)| O(n)|❤️|31.6%|
|
||||
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium||||63.9%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||67.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||53.9%|
|
||||
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||39.3%|
|
||||
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||40.1%|
|
||||
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.6%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.9%|
|
||||
|0414|Third Maximum Number|[Go]({{< relref "/ChapterFour/0400~0499/0414.Third-Maximum-Number.md" >}})|Easy||||31.1%|
|
||||
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||46.6%|
|
||||
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||49.0%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium||||66.9%|
|
||||
|0455|Assign Cookies|[Go]({{< relref "/ChapterFour/0400~0499/0455.Assign-Cookies.md" >}})|Easy||||50.6%|
|
||||
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||56.2%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.6%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium| O(n)| O(1) ||50.7%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||37.1%|
|
||||
|0561|Array Partition I|[Go]({{< relref "/ChapterFour/0500~0599/0561.Array-Partition-I.md" >}})|Easy||||74.8%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.7%|
|
||||
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||52.2%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.3%|
|
||||
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy||||46.7%|
|
||||
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||57.0%|
|
||||
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||41.1%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.8%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.9%|
|
||||
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n) ||33.1%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.9%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||50.3%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium| O(n log n)| O(log n) |❤️|51.3%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.8%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||50.0%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||40.5%|
|
||||
|0853|Car Fleet|[Go]({{< relref "/ChapterFour/0800~0899/0853.Car-Fleet.md" >}})|Medium| O(n log n)| O(log n) ||47.0%|
|
||||
|0869|Reordered Power of 2|[Go]({{< relref "/ChapterFour/0800~0899/0869.Reordered-Power-of-2.md" >}})|Medium||||61.3%|
|
||||
|0870|Advantage Shuffle|[Go]({{< relref "/ChapterFour/0800~0899/0870.Advantage-Shuffle.md" >}})|Medium||||51.0%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium||||49.6%|
|
||||
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||60.0%|
|
||||
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard||||34.1%|
|
||||
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||32.0%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy| O(n)| O(1) ||70.6%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.3%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium| O(n log n)| O(log n) |❤️|69.3%|
|
||||
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium| O(n log n)| O(log n) ||65.7%|
|
||||
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||60.0%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy||||71.5%|
|
||||
|1005|Maximize Sum Of Array After K Negations|[Go]({{< relref "/ChapterFour/1000~1099/1005.Maximize-Sum-Of-Array-After-K-Negations.md" >}})|Easy||||51.8%|
|
||||
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy| O(n^2)| O(1) ||68.8%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.9%|
|
||||
|1051|Height Checker|[Go]({{< relref "/ChapterFour/1000~1099/1051.Height-Checker.md" >}})|Easy||||73.7%|
|
||||
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium| O(n log n)| O(log n) |❤️|45.0%|
|
||||
|1122|Relative Sort Array|[Go]({{< relref "/ChapterFour/1100~1199/1122.Relative-Sort-Array.md" >}})|Easy||||67.9%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.6%|
|
||||
|1200|Minimum Absolute Difference|[Go]({{< relref "/ChapterFour/1200~1299/1200.Minimum-Absolute-Difference.md" >}})|Easy||||67.3%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||48.3%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.5%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.2%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|
||||
|1200|Minimum Absolute Difference|[Go]({{< relref "/ChapterFour/1200~1299/1200.Minimum-Absolute-Difference.md" >}})|Easy||||67.7%|
|
||||
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||50.5%|
|
||||
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.4%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.6%|
|
||||
|1329|Sort the Matrix Diagonally|[Go]({{< relref "/ChapterFour/1300~1399/1329.Sort-the-Matrix-Diagonally.md" >}})|Medium||||81.4%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.0%|
|
||||
|1383|Maximum Performance of a Team|[Go]({{< relref "/ChapterFour/1300~1399/1383.Maximum-Performance-of-a-Team.md" >}})|Hard||||41.2%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.4%|
|
||||
|1464|Maximum Product of Two Elements in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1464.Maximum-Product-of-Two-Elements-in-an-Array.md" >}})|Easy||||77.3%|
|
||||
|1465|Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts|[Go]({{< relref "/ChapterFour/1400~1499/1465.Maximum-Area-of-a-Piece-of-Cake-After-Horizontal-and-Vertical-Cuts.md" >}})|Medium||||36.6%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||61.2%|
|
||||
|1619|Mean of Array After Removing Some Elements|[Go]({{< relref "/ChapterFour/1600~1699/1619.Mean-of-Array-After-Removing-Some-Elements.md" >}})|Easy||||64.7%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.4%|
|
||||
|1647|Minimum Deletions to Make Character Frequencies Unique|[Go]({{< relref "/ChapterFour/1600~1699/1647.Minimum-Deletions-to-Make-Character-Frequencies-Unique.md" >}})|Medium||||55.7%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.3%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.8%|
|
||||
|1665|Minimum Initial Energy to Finish Tasks|[Go]({{< relref "/ChapterFour/1600~1699/1665.Minimum-Initial-Energy-to-Finish-Tasks.md" >}})|Hard||||55.1%|
|
||||
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.1%|
|
||||
|1383|Maximum Performance of a Team|[Go]({{< relref "/ChapterFour/1300~1399/1383.Maximum-Performance-of-a-Team.md" >}})|Hard||||41.3%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.2%|
|
||||
|1464|Maximum Product of Two Elements in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1464.Maximum-Product-of-Two-Elements-in-an-Array.md" >}})|Easy||||77.6%|
|
||||
|1465|Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts|[Go]({{< relref "/ChapterFour/1400~1499/1465.Maximum-Area-of-a-Piece-of-Cake-After-Horizontal-and-Vertical-Cuts.md" >}})|Medium||||37.0%|
|
||||
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||60.9%|
|
||||
|1619|Mean of Array After Removing Some Elements|[Go]({{< relref "/ChapterFour/1600~1699/1619.Mean-of-Array-After-Removing-Some-Elements.md" >}})|Easy||||64.5%|
|
||||
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.9%|
|
||||
|1647|Minimum Deletions to Make Character Frequencies Unique|[Go]({{< relref "/ChapterFour/1600~1699/1647.Minimum-Deletions-to-Make-Character-Frequencies-Unique.md" >}})|Medium||||55.9%|
|
||||
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.5%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.7%|
|
||||
|1665|Minimum Initial Energy to Finish Tasks|[Go]({{< relref "/ChapterFour/1600~1699/1665.Minimum-Initial-Energy-to-Finish-Tasks.md" >}})|Hard||||55.3%|
|
||||
|1679|Max Number of K-Sum Pairs|[Go]({{< relref "/ChapterFour/1600~1699/1679.Max-Number-of-K-Sum-Pairs.md" >}})|Medium||||53.5%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||51.1%|
|
||||
|1710|Maximum Units on a Truck|[Go]({{< relref "/ChapterFour/1700~1799/1710.Maximum-Units-on-a-Truck.md" >}})|Easy||||72.4%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.4%|
|
||||
|1846|Maximum Element After Decreasing and Rearranging|[Go]({{< relref "/ChapterFour/1800~1899/1846.Maximum-Element-After-Decreasing-and-Rearranging.md" >}})|Medium||||55.4%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||78.8%|
|
||||
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||52.7%|
|
||||
|1710|Maximum Units on a Truck|[Go]({{< relref "/ChapterFour/1700~1799/1710.Maximum-Units-on-a-Truck.md" >}})|Easy||||72.1%|
|
||||
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.3%|
|
||||
|1846|Maximum Element After Decreasing and Rearranging|[Go]({{< relref "/ChapterFour/1800~1899/1846.Maximum-Element-After-Decreasing-and-Rearranging.md" >}})|Medium||||56.0%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||80.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -17,61 +17,61 @@ weight: 5
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0020|Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0020.Valid-Parentheses.md" >}})|Easy| O(log n)| O(1)||40.3%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.4%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|53.0%|
|
||||
|0071|Simplify Path|[Go]({{< relref "/ChapterFour/0001~0099/0071.Simplify-Path.md" >}})|Medium| O(n)| O(n)|❤️|35.6%|
|
||||
|0084|Largest Rectangle in Histogram|[Go]({{< relref "/ChapterFour/0001~0099/0084.Largest-Rectangle-in-Histogram.md" >}})|Hard| O(n)| O(n)|❤️|38.4%|
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy| O(n)| O(1)||67.8%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium||||54.6%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium||||42.9%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy| O(n)| O(1)||59.2%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy| O(n)| O(1)||59.8%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium| O(n)| O(1)||40.0%|
|
||||
|0155|Min Stack|[Go]({{< relref "/ChapterFour/0100~0199/0155.Min-Stack.md" >}})|Easy| O(n)| O(n)||47.7%|
|
||||
|0173|Binary Search Tree Iterator|[Go]({{< relref "/ChapterFour/0100~0199/0173.Binary-Search-Tree-Iterator.md" >}})|Medium| O(n)| O(1)||62.1%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard| O(n)| O(n)||38.9%|
|
||||
|0225|Implement Stack using Queues|[Go]({{< relref "/ChapterFour/0200~0299/0225.Implement-Stack-using-Queues.md" >}})|Easy| O(n)| O(n)||49.4%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||39.4%|
|
||||
|0232|Implement Queue using Stacks|[Go]({{< relref "/ChapterFour/0200~0299/0232.Implement-Queue-using-Stacks.md" >}})|Easy| O(n)| O(n)||54.1%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy||||43.7%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium| O(n)| O(1)||41.5%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||56.8%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.0%|
|
||||
|0394|Decode String|[Go]({{< relref "/ChapterFour/0300~0399/0394.Decode-String.md" >}})|Medium| O(n)| O(n)||53.9%|
|
||||
|0402|Remove K Digits|[Go]({{< relref "/ChapterFour/0400~0499/0402.Remove-K-Digits.md" >}})|Medium| O(n)| O(1)||28.8%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium||||57.3%|
|
||||
|0020|Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0020.Valid-Parentheses.md" >}})|Easy| O(log n)| O(1)||40.5%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.8%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|54.6%|
|
||||
|0071|Simplify Path|[Go]({{< relref "/ChapterFour/0001~0099/0071.Simplify-Path.md" >}})|Medium| O(n)| O(n)|❤️|36.6%|
|
||||
|0084|Largest Rectangle in Histogram|[Go]({{< relref "/ChapterFour/0001~0099/0084.Largest-Rectangle-in-Histogram.md" >}})|Hard| O(n)| O(n)|❤️|39.1%|
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy| O(n)| O(1)||69.1%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium||||56.0%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium||||44.4%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy| O(n)| O(1)||60.5%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy| O(n)| O(1)||61.6%|
|
||||
|0150|Evaluate Reverse Polish Notation|[Go]({{< relref "/ChapterFour/0100~0199/0150.Evaluate-Reverse-Polish-Notation.md" >}})|Medium| O(n)| O(1)||40.9%|
|
||||
|0155|Min Stack|[Go]({{< relref "/ChapterFour/0100~0199/0155.Min-Stack.md" >}})|Easy| O(n)| O(n)||49.0%|
|
||||
|0173|Binary Search Tree Iterator|[Go]({{< relref "/ChapterFour/0100~0199/0173.Binary-Search-Tree-Iterator.md" >}})|Medium| O(n)| O(1)||63.6%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard| O(n)| O(n)||39.7%|
|
||||
|0225|Implement Stack using Queues|[Go]({{< relref "/ChapterFour/0200~0299/0225.Implement-Stack-using-Queues.md" >}})|Easy| O(n)| O(n)||50.6%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||40.1%|
|
||||
|0232|Implement Queue using Stacks|[Go]({{< relref "/ChapterFour/0200~0299/0232.Implement-Queue-using-Stacks.md" >}})|Easy| O(n)| O(n)||55.7%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy||||44.8%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium| O(n)| O(1)||43.4%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.6%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.4%|
|
||||
|0394|Decode String|[Go]({{< relref "/ChapterFour/0300~0399/0394.Decode-String.md" >}})|Medium| O(n)| O(n)||54.8%|
|
||||
|0402|Remove K Digits|[Go]({{< relref "/ChapterFour/0400~0499/0402.Remove-K-Digits.md" >}})|Medium| O(n)| O(1)||29.0%|
|
||||
|0445|Add Two Numbers II|[Go]({{< relref "/ChapterFour/0400~0499/0445.Add-Two-Numbers-II.md" >}})|Medium||||57.9%|
|
||||
|0456|132 Pattern|[Go]({{< relref "/ChapterFour/0400~0499/0456.132-Pattern.md" >}})|Medium| O(n)| O(n)||30.7%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy| O(n)| O(n)||67.0%|
|
||||
|0503|Next Greater Element II|[Go]({{< relref "/ChapterFour/0500~0599/0503.Next-Greater-Element-II.md" >}})|Medium| O(n)| O(n)||59.9%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.3%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||74.8%|
|
||||
|0636|Exclusive Time of Functions|[Go]({{< relref "/ChapterFour/0600~0699/0636.Exclusive-Time-of-Functions.md" >}})|Medium| O(n)| O(n)||56.6%|
|
||||
|0682|Baseball Game|[Go]({{< relref "/ChapterFour/0600~0699/0682.Baseball-Game.md" >}})|Easy| O(n)| O(n)||68.3%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard| O(n)| O(n) |❤️|51.2%|
|
||||
|0735|Asteroid Collision|[Go]({{< relref "/ChapterFour/0700~0799/0735.Asteroid-Collision.md" >}})|Medium| O(n)| O(n) ||43.7%|
|
||||
|0739|Daily Temperatures|[Go]({{< relref "/ChapterFour/0700~0799/0739.Daily-Temperatures.md" >}})|Medium| O(n)| O(n) ||65.6%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy| O(n)| O(n) ||47.3%|
|
||||
|0856|Score of Parentheses|[Go]({{< relref "/ChapterFour/0800~0899/0856.Score-of-Parentheses.md" >}})|Medium| O(n)| O(n)||65.2%|
|
||||
|0880|Decoded String at Index|[Go]({{< relref "/ChapterFour/0800~0899/0880.Decoded-String-at-Index.md" >}})|Medium| O(n)| O(n)||28.2%|
|
||||
|0895|Maximum Frequency Stack|[Go]({{< relref "/ChapterFour/0800~0899/0895.Maximum-Frequency-Stack.md" >}})|Hard| O(n)| O(n) ||63.8%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.3%|
|
||||
|0901|Online Stock Span|[Go]({{< relref "/ChapterFour/0900~0999/0901.Online-Stock-Span.md" >}})|Medium| O(n)| O(n) ||62.0%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium| O(n)| O(n)|❤️|32.9%|
|
||||
|0921|Minimum Add to Make Parentheses Valid|[Go]({{< relref "/ChapterFour/0900~0999/0921.Minimum-Add-to-Make-Parentheses-Valid.md" >}})|Medium| O(n)| O(n)||75.9%|
|
||||
|0946|Validate Stack Sequences|[Go]({{< relref "/ChapterFour/0900~0999/0946.Validate-Stack-Sequences.md" >}})|Medium| O(n)| O(n)||64.6%|
|
||||
|1003|Check If Word Is Valid After Substitutions|[Go]({{< relref "/ChapterFour/1000~1099/1003.Check-If-Word-Is-Valid-After-Substitutions.md" >}})|Medium| O(n)| O(1)||57.2%|
|
||||
|1006|Clumsy Factorial|[Go]({{< relref "/ChapterFour/1000~1099/1006.Clumsy-Factorial.md" >}})|Medium||||54.2%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium| O(n)| O(1)||59.0%|
|
||||
|0496|Next Greater Element I|[Go]({{< relref "/ChapterFour/0400~0499/0496.Next-Greater-Element-I.md" >}})|Easy| O(n)| O(n)||68.8%|
|
||||
|0503|Next Greater Element II|[Go]({{< relref "/ChapterFour/0500~0599/0503.Next-Greater-Element-II.md" >}})|Medium| O(n)| O(n)||60.8%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.7%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||75.3%|
|
||||
|0636|Exclusive Time of Functions|[Go]({{< relref "/ChapterFour/0600~0699/0636.Exclusive-Time-of-Functions.md" >}})|Medium| O(n)| O(n)||58.3%|
|
||||
|0682|Baseball Game|[Go]({{< relref "/ChapterFour/0600~0699/0682.Baseball-Game.md" >}})|Easy| O(n)| O(n)||68.8%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard| O(n)| O(n) |❤️|51.6%|
|
||||
|0735|Asteroid Collision|[Go]({{< relref "/ChapterFour/0700~0799/0735.Asteroid-Collision.md" >}})|Medium| O(n)| O(n) ||44.2%|
|
||||
|0739|Daily Temperatures|[Go]({{< relref "/ChapterFour/0700~0799/0739.Daily-Temperatures.md" >}})|Medium| O(n)| O(n) ||66.4%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy| O(n)| O(n) ||47.5%|
|
||||
|0856|Score of Parentheses|[Go]({{< relref "/ChapterFour/0800~0899/0856.Score-of-Parentheses.md" >}})|Medium| O(n)| O(n)||65.5%|
|
||||
|0880|Decoded String at Index|[Go]({{< relref "/ChapterFour/0800~0899/0880.Decoded-String-at-Index.md" >}})|Medium| O(n)| O(n)||28.3%|
|
||||
|0895|Maximum Frequency Stack|[Go]({{< relref "/ChapterFour/0800~0899/0895.Maximum-Frequency-Stack.md" >}})|Hard| O(n)| O(n) ||64.3%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.6%|
|
||||
|0901|Online Stock Span|[Go]({{< relref "/ChapterFour/0900~0999/0901.Online-Stock-Span.md" >}})|Medium| O(n)| O(n) ||62.5%|
|
||||
|0907|Sum of Subarray Minimums|[Go]({{< relref "/ChapterFour/0900~0999/0907.Sum-of-Subarray-Minimums.md" >}})|Medium| O(n)| O(n)|❤️|33.0%|
|
||||
|0921|Minimum Add to Make Parentheses Valid|[Go]({{< relref "/ChapterFour/0900~0999/0921.Minimum-Add-to-Make-Parentheses-Valid.md" >}})|Medium| O(n)| O(n)||77.2%|
|
||||
|0946|Validate Stack Sequences|[Go]({{< relref "/ChapterFour/0900~0999/0946.Validate-Stack-Sequences.md" >}})|Medium| O(n)| O(n)||65.0%|
|
||||
|1003|Check If Word Is Valid After Substitutions|[Go]({{< relref "/ChapterFour/1000~1099/1003.Check-If-Word-Is-Valid-After-Substitutions.md" >}})|Medium| O(n)| O(1)||57.3%|
|
||||
|1006|Clumsy Factorial|[Go]({{< relref "/ChapterFour/1000~1099/1006.Clumsy-Factorial.md" >}})|Medium||||54.3%|
|
||||
|1019|Next Greater Node In Linked List|[Go]({{< relref "/ChapterFour/1000~1099/1019.Next-Greater-Node-In-Linked-List.md" >}})|Medium| O(n)| O(1)||59.3%|
|
||||
|1021|Remove Outermost Parentheses|[Go]({{< relref "/ChapterFour/1000~1099/1021.Remove-Outermost-Parentheses.md" >}})|Easy| O(n)| O(1)||79.5%|
|
||||
|1047|Remove All Adjacent Duplicates In String|[Go]({{< relref "/ChapterFour/1000~1099/1047.Remove-All-Adjacent-Duplicates-In-String.md" >}})|Easy| O(n)| O(1)||71.5%|
|
||||
|1047|Remove All Adjacent Duplicates In String|[Go]({{< relref "/ChapterFour/1000~1099/1047.Remove-All-Adjacent-Duplicates-In-String.md" >}})|Easy| O(n)| O(1)||71.2%|
|
||||
|1111|Maximum Nesting Depth of Two Valid Parentheses Strings|[Go]({{< relref "/ChapterFour/1100~1199/1111.Maximum-Nesting-Depth-of-Two-Valid-Parentheses-Strings.md" >}})|Medium||||72.6%|
|
||||
|1190|Reverse Substrings Between Each Pair of Parentheses|[Go]({{< relref "/ChapterFour/1100~1199/1190.Reverse-Substrings-Between-Each-Pair-of-Parentheses.md" >}})|Medium||||65.0%|
|
||||
|1209|Remove All Adjacent Duplicates in String II|[Go]({{< relref "/ChapterFour/1200~1299/1209.Remove-All-Adjacent-Duplicates-in-String-II.md" >}})|Medium||||56.7%|
|
||||
|1249|Minimum Remove to Make Valid Parentheses|[Go]({{< relref "/ChapterFour/1200~1299/1249.Minimum-Remove-to-Make-Valid-Parentheses.md" >}})|Medium||||64.7%|
|
||||
|1614|Maximum Nesting Depth of the Parentheses|[Go]({{< relref "/ChapterFour/1600~1699/1614.Maximum-Nesting-Depth-of-the-Parentheses.md" >}})|Easy||||82.7%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||53.0%|
|
||||
|1673|Find the Most Competitive Subsequence|[Go]({{< relref "/ChapterFour/1600~1699/1673.Find-the-Most-Competitive-Subsequence.md" >}})|Medium||||46.6%|
|
||||
|1190|Reverse Substrings Between Each Pair of Parentheses|[Go]({{< relref "/ChapterFour/1100~1199/1190.Reverse-Substrings-Between-Each-Pair-of-Parentheses.md" >}})|Medium||||65.3%|
|
||||
|1209|Remove All Adjacent Duplicates in String II|[Go]({{< relref "/ChapterFour/1200~1299/1209.Remove-All-Adjacent-Duplicates-in-String-II.md" >}})|Medium||||56.1%|
|
||||
|1249|Minimum Remove to Make Valid Parentheses|[Go]({{< relref "/ChapterFour/1200~1299/1249.Minimum-Remove-to-Make-Valid-Parentheses.md" >}})|Medium||||65.0%|
|
||||
|1614|Maximum Nesting Depth of the Parentheses|[Go]({{< relref "/ChapterFour/1600~1699/1614.Maximum-Nesting-Depth-of-the-Parentheses.md" >}})|Easy||||82.9%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||54.1%|
|
||||
|1673|Find the Most Competitive Subsequence|[Go]({{< relref "/ChapterFour/1600~1699/1673.Find-the-Most-Competitive-Subsequence.md" >}})|Medium||||47.4%|
|
||||
|1700|Number of Students Unable to Eat Lunch|[Go]({{< relref "/ChapterFour/1700~1799/1700.Number-of-Students-Unable-to-Eat-Lunch.md" >}})|Easy||||67.7%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
@ -9,167 +9,176 @@ weight: 2
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.0%|
|
||||
|0005|Longest Palindromic Substring|[Go]({{< relref "/ChapterFour/0001~0099/0005.Longest-Palindromic-Substring.md" >}})|Medium||||31.1%|
|
||||
|0006|ZigZag Conversion|[Go]({{< relref "/ChapterFour/0001~0099/0006.ZigZag-Conversion.md" >}})|Medium||||39.3%|
|
||||
|0008|String to Integer (atoi)|[Go]({{< relref "/ChapterFour/0001~0099/0008.String-to-Integer-atoi.md" >}})|Medium||||15.9%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||57.9%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.5%|
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium| O(log n)| O(1)||51.1%|
|
||||
|0020|Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0020.Valid-Parentheses.md" >}})|Easy| O(log n)| O(1)||40.3%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium| O(log n)| O(1)||67.4%|
|
||||
|0028|Implement strStr()|[Go]({{< relref "/ChapterFour/0001~0099/0028.Implement-strStr.md" >}})|Easy| O(n)| O(1)||35.8%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard| O(n)| O(n)|❤️|26.9%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.4%|
|
||||
|0043|Multiply Strings|[Go]({{< relref "/ChapterFour/0001~0099/0043.Multiply-Strings.md" >}})|Medium||||35.7%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium| O(n log n)| O(n)||61.1%|
|
||||
|0065|Valid Number|[Go]({{< relref "/ChapterFour/0001~0099/0065.Valid-Number.md" >}})|Hard||||16.9%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||48.3%|
|
||||
|0071|Simplify Path|[Go]({{< relref "/ChapterFour/0001~0099/0071.Simplify-Path.md" >}})|Medium| O(n)| O(n)||35.6%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|37.0%|
|
||||
|0091|Decode Ways|[Go]({{< relref "/ChapterFour/0001~0099/0091.Decode-Ways.md" >}})|Medium| O(n)| O(n)||27.9%|
|
||||
|0093|Restore IP Addresses|[Go]({{< relref "/ChapterFour/0001~0099/0093.Restore-IP-Addresses.md" >}})|Medium| O(n)| O(n)|❤️|39.0%|
|
||||
|0097|Interleaving String|[Go]({{< relref "/ChapterFour/0001~0099/0097.Interleaving-String.md" >}})|Medium||||33.8%|
|
||||
|0115|Distinct Subsequences|[Go]({{< relref "/ChapterFour/0100~0199/0115.Distinct-Subsequences.md" >}})|Hard||||40.6%|
|
||||
|0125|Valid Palindrome|[Go]({{< relref "/ChapterFour/0100~0199/0125.Valid-Palindrome.md" >}})|Easy| O(n)| O(1)||39.4%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|25.2%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard||||33.1%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium||||54.6%|
|
||||
|0151|Reverse Words in a String|[Go]({{< relref "/ChapterFour/0100~0199/0151.Reverse-Words-in-a-String.md" >}})|Medium||||25.3%|
|
||||
|0168|Excel Sheet Column Title|[Go]({{< relref "/ChapterFour/0100~0199/0168.Excel-Sheet-Column-Title.md" >}})|Easy||||32.5%|
|
||||
|0171|Excel Sheet Column Number|[Go]({{< relref "/ChapterFour/0100~0199/0171.Excel-Sheet-Column-Number.md" >}})|Easy||||57.9%|
|
||||
|0179|Largest Number|[Go]({{< relref "/ChapterFour/0100~0199/0179.Largest-Number.md" >}})|Medium||||31.5%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||42.4%|
|
||||
|0205|Isomorphic Strings|[Go]({{< relref "/ChapterFour/0200~0299/0205.Isomorphic-Strings.md" >}})|Easy||||41.4%|
|
||||
|0208|Implement Trie (Prefix Tree)|[Go]({{< relref "/ChapterFour/0200~0299/0208.Implement-Trie-Prefix-Tree.md" >}})|Medium||||54.1%|
|
||||
|0211|Design Add and Search Words Data Structure|[Go]({{< relref "/ChapterFour/0200~0299/0211.Design-Add-and-Search-Words-Data-Structure.md" >}})|Medium||||41.7%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard||||37.9%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard||||38.9%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||39.4%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy||||59.6%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy||||55.6%|
|
||||
|0290|Word Pattern|[Go]({{< relref "/ChapterFour/0200~0299/0290.Word-Pattern.md" >}})|Easy||||38.8%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||51.4%|
|
||||
|0306|Additive Number|[Go]({{< relref "/ChapterFour/0300~0399/0306.Additive-Number.md" >}})|Medium||||30.0%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium||||55.6%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium||||41.5%|
|
||||
|0344|Reverse String|[Go]({{< relref "/ChapterFour/0300~0399/0344.Reverse-String.md" >}})|Easy| O(n)| O(1)||71.6%|
|
||||
|0345|Reverse Vowels of a String|[Go]({{< relref "/ChapterFour/0300~0399/0345.Reverse-Vowels-of-a-String.md" >}})|Easy| O(n)| O(1)||45.9%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.0%|
|
||||
|0387|First Unique Character in a String|[Go]({{< relref "/ChapterFour/0300~0399/0387.First-Unique-Character-in-a-String.md" >}})|Easy||||54.8%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.5%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy||||49.8%|
|
||||
|0394|Decode String|[Go]({{< relref "/ChapterFour/0300~0399/0394.Decode-String.md" >}})|Medium||||53.9%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.0%|
|
||||
|0402|Remove K Digits|[Go]({{< relref "/ChapterFour/0400~0499/0402.Remove-K-Digits.md" >}})|Medium||||28.8%|
|
||||
|0409|Longest Palindrome|[Go]({{< relref "/ChapterFour/0400~0499/0409.Longest-Palindrome.md" >}})|Easy||||52.5%|
|
||||
|0412|Fizz Buzz|[Go]({{< relref "/ChapterFour/0400~0499/0412.Fizz-Buzz.md" >}})|Easy||||64.7%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.2%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium||||49.3%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||44.2%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium||||45.9%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium||||65.4%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||43.6%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||66.6%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium||||50.4%|
|
||||
|0535|Encode and Decode TinyURL|[Go]({{< relref "/ChapterFour/0500~0599/0535.Encode-and-Decode-TinyURL.md" >}})|Medium||||82.8%|
|
||||
|0537|Complex Number Multiplication|[Go]({{< relref "/ChapterFour/0500~0599/0537.Complex-Number-Multiplication.md" >}})|Medium||||68.6%|
|
||||
|0541|Reverse String II|[Go]({{< relref "/ChapterFour/0500~0599/0541.Reverse-String-II.md" >}})|Easy||||49.8%|
|
||||
|0557|Reverse Words in a String III|[Go]({{< relref "/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III.md" >}})|Easy||||73.5%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium||||44.7%|
|
||||
|0583|Delete Operation for Two Strings|[Go]({{< relref "/ChapterFour/0500~0599/0583.Delete-Operation-for-Two-Strings.md" >}})|Medium||||52.7%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.5%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.1%|
|
||||
|0647|Palindromic Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0647.Palindromic-Substrings.md" >}})|Medium||||63.2%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium||||60.2%|
|
||||
|0676|Implement Magic Dictionary|[Go]({{< relref "/ChapterFour/0600~0699/0676.Implement-Magic-Dictionary.md" >}})|Medium||||55.9%|
|
||||
|0677|Map Sum Pairs|[Go]({{< relref "/ChapterFour/0600~0699/0677.Map-Sum-Pairs.md" >}})|Medium||||57.0%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.6%|
|
||||
|0696|Count Binary Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0696.Count-Binary-Substrings.md" >}})|Easy||||61.8%|
|
||||
|0709|To Lower Case|[Go]({{< relref "/ChapterFour/0700~0799/0709.To-Lower-Case.md" >}})|Easy||||80.7%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||49.9%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||53.4%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard||||51.2%|
|
||||
|0745|Prefix and Suffix Search|[Go]({{< relref "/ChapterFour/0700~0799/0745.Prefix-and-Suffix-Search.md" >}})|Hard||||35.3%|
|
||||
|0748|Shortest Completing Word|[Go]({{< relref "/ChapterFour/0700~0799/0748.Shortest-Completing-Word.md" >}})|Easy||||58.1%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||54.8%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium||||78.3%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium| O(n log n)| O(log n) |❤️|50.8%|
|
||||
|0771|Jewels and Stones|[Go]({{< relref "/ChapterFour/0700~0799/0771.Jewels-and-Stones.md" >}})|Easy||||87.3%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium||||69.5%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.1%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||49.1%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||72.4%|
|
||||
|0816|Ambiguous Coordinates|[Go]({{< relref "/ChapterFour/0800~0899/0816.Ambiguous-Coordinates.md" >}})|Medium||||55.7%|
|
||||
|0819|Most Common Word|[Go]({{< relref "/ChapterFour/0800~0899/0819.Most-Common-Word.md" >}})|Easy||||45.4%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.0%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.4%|
|
||||
|0828|Count Unique Characters of All Substrings of a Given String|[Go]({{< relref "/ChapterFour/0800~0899/0828.Count-Unique-Characters-of-All-Substrings-of-a-Given-String.md" >}})|Hard||||47.0%|
|
||||
|0830|Positions of Large Groups|[Go]({{< relref "/ChapterFour/0800~0899/0830.Positions-of-Large-Groups.md" >}})|Easy||||50.8%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium||||51.8%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||43.1%|
|
||||
|0842|Split Array into Fibonacci Sequence|[Go]({{< relref "/ChapterFour/0800~0899/0842.Split-Array-into-Fibonacci-Sequence.md" >}})|Medium| O(n^2)| O(1)|❤️|37.2%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy||||47.3%|
|
||||
|0856|Score of Parentheses|[Go]({{< relref "/ChapterFour/0800~0899/0856.Score-of-Parentheses.md" >}})|Medium| O(n)| O(n)||65.2%|
|
||||
|0880|Decoded String at Index|[Go]({{< relref "/ChapterFour/0800~0899/0880.Decoded-String-at-Index.md" >}})|Medium||||28.2%|
|
||||
|0884|Uncommon Words from Two Sentences|[Go]({{< relref "/ChapterFour/0800~0899/0884.Uncommon-Words-from-Two-Sentences.md" >}})|Easy||||64.7%|
|
||||
|0003|Longest Substring Without Repeating Characters|[Go]({{< relref "/ChapterFour/0001~0099/0003.Longest-Substring-Without-Repeating-Characters.md" >}})|Medium| O(n)| O(1)|❤️|32.5%|
|
||||
|0005|Longest Palindromic Substring|[Go]({{< relref "/ChapterFour/0001~0099/0005.Longest-Palindromic-Substring.md" >}})|Medium||||31.5%|
|
||||
|0006|Zigzag Conversion|[Go]({{< relref "/ChapterFour/0001~0099/0006.Zigzag-Conversion.md" >}})|Medium||||40.2%|
|
||||
|0008|String to Integer (atoi)|[Go]({{< relref "/ChapterFour/0001~0099/0008.String-to-Integer-atoi.md" >}})|Medium||||16.1%|
|
||||
|0012|Integer to Roman|[Go]({{< relref "/ChapterFour/0001~0099/0012.Integer-to-Roman.md" >}})|Medium||||58.5%|
|
||||
|0013|Roman to Integer|[Go]({{< relref "/ChapterFour/0001~0099/0013.Roman-to-Integer.md" >}})|Easy||||57.7%|
|
||||
|0014|Longest Common Prefix|[Go]({{< relref "/ChapterFour/0001~0099/0014.Longest-Common-Prefix.md" >}})|Easy||||38.2%|
|
||||
|0017|Letter Combinations of a Phone Number|[Go]({{< relref "/ChapterFour/0001~0099/0017.Letter-Combinations-of-a-Phone-Number.md" >}})|Medium| O(log n)| O(1)||52.2%|
|
||||
|0020|Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0020.Valid-Parentheses.md" >}})|Easy| O(log n)| O(1)||40.5%|
|
||||
|0022|Generate Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0022.Generate-Parentheses.md" >}})|Medium| O(log n)| O(1)||68.5%|
|
||||
|0028|Implement strStr()|[Go]({{< relref "/ChapterFour/0001~0099/0028.Implement-strStr.md" >}})|Easy| O(n)| O(1)||35.7%|
|
||||
|0030|Substring with Concatenation of All Words|[Go]({{< relref "/ChapterFour/0001~0099/0030.Substring-with-Concatenation-of-All-Words.md" >}})|Hard| O(n)| O(n)|❤️|27.4%|
|
||||
|0032|Longest Valid Parentheses|[Go]({{< relref "/ChapterFour/0001~0099/0032.Longest-Valid-Parentheses.md" >}})|Hard||||30.8%|
|
||||
|0043|Multiply Strings|[Go]({{< relref "/ChapterFour/0001~0099/0043.Multiply-Strings.md" >}})|Medium||||36.9%|
|
||||
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium| O(n log n)| O(n)||62.5%|
|
||||
|0058|Length of Last Word|[Go]({{< relref "/ChapterFour/0001~0099/0058.Length-of-Last-Word.md" >}})|Easy||||35.3%|
|
||||
|0065|Valid Number|[Go]({{< relref "/ChapterFour/0001~0099/0065.Valid-Number.md" >}})|Hard||||17.4%|
|
||||
|0067|Add Binary|[Go]({{< relref "/ChapterFour/0001~0099/0067.Add-Binary.md" >}})|Easy||||49.0%|
|
||||
|0071|Simplify Path|[Go]({{< relref "/ChapterFour/0001~0099/0071.Simplify-Path.md" >}})|Medium| O(n)| O(n)||36.6%|
|
||||
|0076|Minimum Window Substring|[Go]({{< relref "/ChapterFour/0001~0099/0076.Minimum-Window-Substring.md" >}})|Hard| O(n)| O(n)|❤️|38.0%|
|
||||
|0091|Decode Ways|[Go]({{< relref "/ChapterFour/0001~0099/0091.Decode-Ways.md" >}})|Medium| O(n)| O(n)||29.0%|
|
||||
|0093|Restore IP Addresses|[Go]({{< relref "/ChapterFour/0001~0099/0093.Restore-IP-Addresses.md" >}})|Medium| O(n)| O(n)|❤️|40.2%|
|
||||
|0097|Interleaving String|[Go]({{< relref "/ChapterFour/0001~0099/0097.Interleaving-String.md" >}})|Medium||||34.1%|
|
||||
|0115|Distinct Subsequences|[Go]({{< relref "/ChapterFour/0100~0199/0115.Distinct-Subsequences.md" >}})|Hard||||41.7%|
|
||||
|0125|Valid Palindrome|[Go]({{< relref "/ChapterFour/0100~0199/0125.Valid-Palindrome.md" >}})|Easy| O(n)| O(1)||40.1%|
|
||||
|0126|Word Ladder II|[Go]({{< relref "/ChapterFour/0100~0199/0126.Word-Ladder-II.md" >}})|Hard| O(n)| O(n^2)|❤️|26.0%|
|
||||
|0127|Word Ladder|[Go]({{< relref "/ChapterFour/0100~0199/0127.Word-Ladder.md" >}})|Hard||||33.9%|
|
||||
|0131|Palindrome Partitioning|[Go]({{< relref "/ChapterFour/0100~0199/0131.Palindrome-Partitioning.md" >}})|Medium||||56.1%|
|
||||
|0151|Reverse Words in a String|[Go]({{< relref "/ChapterFour/0100~0199/0151.Reverse-Words-in-a-String.md" >}})|Medium||||27.0%|
|
||||
|0168|Excel Sheet Column Title|[Go]({{< relref "/ChapterFour/0100~0199/0168.Excel-Sheet-Column-Title.md" >}})|Easy||||33.1%|
|
||||
|0171|Excel Sheet Column Number|[Go]({{< relref "/ChapterFour/0100~0199/0171.Excel-Sheet-Column-Number.md" >}})|Easy||||58.6%|
|
||||
|0179|Largest Number|[Go]({{< relref "/ChapterFour/0100~0199/0179.Largest-Number.md" >}})|Medium||||32.1%|
|
||||
|0187|Repeated DNA Sequences|[Go]({{< relref "/ChapterFour/0100~0199/0187.Repeated-DNA-Sequences.md" >}})|Medium||||43.2%|
|
||||
|0205|Isomorphic Strings|[Go]({{< relref "/ChapterFour/0200~0299/0205.Isomorphic-Strings.md" >}})|Easy||||41.6%|
|
||||
|0208|Implement Trie (Prefix Tree)|[Go]({{< relref "/ChapterFour/0200~0299/0208.Implement-Trie-Prefix-Tree.md" >}})|Medium||||56.1%|
|
||||
|0211|Design Add and Search Words Data Structure|[Go]({{< relref "/ChapterFour/0200~0299/0211.Design-Add-and-Search-Words-Data-Structure.md" >}})|Medium||||42.6%|
|
||||
|0212|Word Search II|[Go]({{< relref "/ChapterFour/0200~0299/0212.Word-Search-II.md" >}})|Hard||||38.4%|
|
||||
|0224|Basic Calculator|[Go]({{< relref "/ChapterFour/0200~0299/0224.Basic-Calculator.md" >}})|Hard||||39.7%|
|
||||
|0227|Basic Calculator II|[Go]({{< relref "/ChapterFour/0200~0299/0227.Basic-Calculator-II.md" >}})|Medium||||40.1%|
|
||||
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy||||60.4%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy||||56.8%|
|
||||
|0290|Word Pattern|[Go]({{< relref "/ChapterFour/0200~0299/0290.Word-Pattern.md" >}})|Easy||||39.1%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.4%|
|
||||
|0299|Bulls and Cows|[Go]({{< relref "/ChapterFour/0200~0299/0299.Bulls-and-Cows.md" >}})|Medium||||46.3%|
|
||||
|0301|Remove Invalid Parentheses|[Go]({{< relref "/ChapterFour/0300~0399/0301.Remove-Invalid-Parentheses.md" >}})|Hard||||46.1%|
|
||||
|0306|Additive Number|[Go]({{< relref "/ChapterFour/0300~0399/0306.Additive-Number.md" >}})|Medium||||30.2%|
|
||||
|0318|Maximum Product of Word Lengths|[Go]({{< relref "/ChapterFour/0300~0399/0318.Maximum-Product-of-Word-Lengths.md" >}})|Medium||||56.1%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium||||43.4%|
|
||||
|0344|Reverse String|[Go]({{< relref "/ChapterFour/0300~0399/0344.Reverse-String.md" >}})|Easy| O(n)| O(1)||72.7%|
|
||||
|0345|Reverse Vowels of a String|[Go]({{< relref "/ChapterFour/0300~0399/0345.Reverse-Vowels-of-a-String.md" >}})|Easy| O(n)| O(1)||46.3%|
|
||||
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.4%|
|
||||
|0387|First Unique Character in a String|[Go]({{< relref "/ChapterFour/0300~0399/0387.First-Unique-Character-in-a-String.md" >}})|Easy||||55.8%|
|
||||
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.9%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy||||50.0%|
|
||||
|0394|Decode String|[Go]({{< relref "/ChapterFour/0300~0399/0394.Decode-String.md" >}})|Medium||||54.8%|
|
||||
|0395|Longest Substring with At Least K Repeating Characters|[Go]({{< relref "/ChapterFour/0300~0399/0395.Longest-Substring-with-At-Least-K-Repeating-Characters.md" >}})|Medium||||44.3%|
|
||||
|0402|Remove K Digits|[Go]({{< relref "/ChapterFour/0400~0499/0402.Remove-K-Digits.md" >}})|Medium||||29.0%|
|
||||
|0409|Longest Palindrome|[Go]({{< relref "/ChapterFour/0400~0499/0409.Longest-Palindrome.md" >}})|Easy||||52.9%|
|
||||
|0412|Fizz Buzz|[Go]({{< relref "/ChapterFour/0400~0499/0412.Fizz-Buzz.md" >}})|Easy||||65.5%|
|
||||
|0423|Reconstruct Original Digits from English|[Go]({{< relref "/ChapterFour/0400~0499/0423.Reconstruct-Original-Digits-from-English.md" >}})|Medium||||51.5%|
|
||||
|0424|Longest Repeating Character Replacement|[Go]({{< relref "/ChapterFour/0400~0499/0424.Longest-Repeating-Character-Replacement.md" >}})|Medium||||49.9%|
|
||||
|0433|Minimum Genetic Mutation|[Go]({{< relref "/ChapterFour/0400~0499/0433.Minimum-Genetic-Mutation.md" >}})|Medium||||45.0%|
|
||||
|0434|Number of Segments in a String|[Go]({{< relref "/ChapterFour/0400~0499/0434.Number-of-Segments-in-a-String.md" >}})|Easy||||37.9%|
|
||||
|0438|Find All Anagrams in a String|[Go]({{< relref "/ChapterFour/0400~0499/0438.Find-All-Anagrams-in-a-String.md" >}})|Medium||||46.7%|
|
||||
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium||||66.9%|
|
||||
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||44.0%|
|
||||
|0488|Zuma Game|[Go]({{< relref "/ChapterFour/0400~0499/0488.Zuma-Game.md" >}})|Hard||||37.5%|
|
||||
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||67.2%|
|
||||
|0520|Detect Capital|[Go]({{< relref "/ChapterFour/0500~0599/0520.Detect-Capital.md" >}})|Easy||||54.3%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium||||50.7%|
|
||||
|0535|Encode and Decode TinyURL|[Go]({{< relref "/ChapterFour/0500~0599/0535.Encode-and-Decode-TinyURL.md" >}})|Medium||||83.1%|
|
||||
|0537|Complex Number Multiplication|[Go]({{< relref "/ChapterFour/0500~0599/0537.Complex-Number-Multiplication.md" >}})|Medium||||70.9%|
|
||||
|0541|Reverse String II|[Go]({{< relref "/ChapterFour/0500~0599/0541.Reverse-String-II.md" >}})|Easy||||49.9%|
|
||||
|0551|Student Attendance Record I|[Go]({{< relref "/ChapterFour/0500~0599/0551.Student-Attendance-Record-I.md" >}})|Easy||||47.1%|
|
||||
|0557|Reverse Words in a String III|[Go]({{< relref "/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III.md" >}})|Easy||||76.0%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium||||44.3%|
|
||||
|0583|Delete Operation for Two Strings|[Go]({{< relref "/ChapterFour/0500~0599/0583.Delete-Operation-for-Two-Strings.md" >}})|Medium||||54.0%|
|
||||
|0599|Minimum Index Sum of Two Lists|[Go]({{< relref "/ChapterFour/0500~0599/0599.Minimum-Index-Sum-of-Two-Lists.md" >}})|Easy||||52.9%|
|
||||
|0609|Find Duplicate File in System|[Go]({{< relref "/ChapterFour/0600~0699/0609.Find-Duplicate-File-in-System.md" >}})|Medium||||63.4%|
|
||||
|0647|Palindromic Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0647.Palindromic-Substrings.md" >}})|Medium||||63.8%|
|
||||
|0648|Replace Words|[Go]({{< relref "/ChapterFour/0600~0699/0648.Replace-Words.md" >}})|Medium||||61.1%|
|
||||
|0676|Implement Magic Dictionary|[Go]({{< relref "/ChapterFour/0600~0699/0676.Implement-Magic-Dictionary.md" >}})|Medium||||56.2%|
|
||||
|0677|Map Sum Pairs|[Go]({{< relref "/ChapterFour/0600~0699/0677.Map-Sum-Pairs.md" >}})|Medium||||56.9%|
|
||||
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.9%|
|
||||
|0696|Count Binary Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0696.Count-Binary-Substrings.md" >}})|Easy||||63.2%|
|
||||
|0709|To Lower Case|[Go]({{< relref "/ChapterFour/0700~0799/0709.To-Lower-Case.md" >}})|Easy||||80.8%|
|
||||
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||50.3%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium||||54.4%|
|
||||
|0726|Number of Atoms|[Go]({{< relref "/ChapterFour/0700~0799/0726.Number-of-Atoms.md" >}})|Hard||||51.6%|
|
||||
|0745|Prefix and Suffix Search|[Go]({{< relref "/ChapterFour/0700~0799/0745.Prefix-and-Suffix-Search.md" >}})|Hard||||35.8%|
|
||||
|0748|Shortest Completing Word|[Go]({{< relref "/ChapterFour/0700~0799/0748.Shortest-Completing-Word.md" >}})|Easy||||58.5%|
|
||||
|0752|Open the Lock|[Go]({{< relref "/ChapterFour/0700~0799/0752.Open-the-Lock.md" >}})|Medium||||55.1%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium||||78.4%|
|
||||
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium| O(n log n)| O(log n) |❤️|51.3%|
|
||||
|0771|Jewels and Stones|[Go]({{< relref "/ChapterFour/0700~0799/0771.Jewels-and-Stones.md" >}})|Easy||||87.4%|
|
||||
|0784|Letter Case Permutation|[Go]({{< relref "/ChapterFour/0700~0799/0784.Letter-Case-Permutation.md" >}})|Medium||||70.7%|
|
||||
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.8%|
|
||||
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||50.0%|
|
||||
|0811|Subdomain Visit Count|[Go]({{< relref "/ChapterFour/0800~0899/0811.Subdomain-Visit-Count.md" >}})|Medium||||73.3%|
|
||||
|0816|Ambiguous Coordinates|[Go]({{< relref "/ChapterFour/0800~0899/0816.Ambiguous-Coordinates.md" >}})|Medium||||55.8%|
|
||||
|0819|Most Common Word|[Go]({{< relref "/ChapterFour/0800~0899/0819.Most-Common-Word.md" >}})|Easy||||45.3%|
|
||||
|0820|Short Encoding of Words|[Go]({{< relref "/ChapterFour/0800~0899/0820.Short-Encoding-of-Words.md" >}})|Medium||||55.1%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.7%|
|
||||
|0828|Count Unique Characters of All Substrings of a Given String|[Go]({{< relref "/ChapterFour/0800~0899/0828.Count-Unique-Characters-of-All-Substrings-of-a-Given-String.md" >}})|Hard||||48.2%|
|
||||
|0830|Positions of Large Groups|[Go]({{< relref "/ChapterFour/0800~0899/0830.Positions-of-Large-Groups.md" >}})|Easy||||51.1%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium||||52.0%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard||||44.2%|
|
||||
|0842|Split Array into Fibonacci Sequence|[Go]({{< relref "/ChapterFour/0800~0899/0842.Split-Array-into-Fibonacci-Sequence.md" >}})|Medium| O(n^2)| O(1)|❤️|37.4%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy||||47.5%|
|
||||
|0856|Score of Parentheses|[Go]({{< relref "/ChapterFour/0800~0899/0856.Score-of-Parentheses.md" >}})|Medium| O(n)| O(n)||65.5%|
|
||||
|0859|Buddy Strings|[Go]({{< relref "/ChapterFour/0800~0899/0859.Buddy-Strings.md" >}})|Easy||||28.7%|
|
||||
|0880|Decoded String at Index|[Go]({{< relref "/ChapterFour/0800~0899/0880.Decoded-String-at-Index.md" >}})|Medium||||28.3%|
|
||||
|0884|Uncommon Words from Two Sentences|[Go]({{< relref "/ChapterFour/0800~0899/0884.Uncommon-Words-from-Two-Sentences.md" >}})|Easy||||65.0%|
|
||||
|0890|Find and Replace Pattern|[Go]({{< relref "/ChapterFour/0800~0899/0890.Find-and-Replace-Pattern.md" >}})|Medium||||75.5%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.8%|
|
||||
|0921|Minimum Add to Make Parentheses Valid|[Go]({{< relref "/ChapterFour/0900~0999/0921.Minimum-Add-to-Make-Parentheses-Valid.md" >}})|Medium||||75.9%|
|
||||
|0925|Long Pressed Name|[Go]({{< relref "/ChapterFour/0900~0999/0925.Long-Pressed-Name.md" >}})|Easy| O(n)| O(1)||35.9%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||74.6%|
|
||||
|0949|Largest Time for Given Digits|[Go]({{< relref "/ChapterFour/0900~0999/0949.Largest-Time-for-Given-Digits.md" >}})|Medium||||35.9%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.1%|
|
||||
|0916|Word Subsets|[Go]({{< relref "/ChapterFour/0900~0999/0916.Word-Subsets.md" >}})|Medium||||52.9%|
|
||||
|0921|Minimum Add to Make Parentheses Valid|[Go]({{< relref "/ChapterFour/0900~0999/0921.Minimum-Add-to-Make-Parentheses-Valid.md" >}})|Medium||||77.2%|
|
||||
|0925|Long Pressed Name|[Go]({{< relref "/ChapterFour/0900~0999/0925.Long-Pressed-Name.md" >}})|Easy| O(n)| O(1)||35.4%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||75.1%|
|
||||
|0949|Largest Time for Given Digits|[Go]({{< relref "/ChapterFour/0900~0999/0949.Largest-Time-for-Given-Digits.md" >}})|Medium||||35.7%|
|
||||
|0953|Verifying an Alien Dictionary|[Go]({{< relref "/ChapterFour/0900~0999/0953.Verifying-an-Alien-Dictionary.md" >}})|Easy||||52.2%|
|
||||
|0966|Vowel Spellchecker|[Go]({{< relref "/ChapterFour/0900~0999/0966.Vowel-Spellchecker.md" >}})|Medium||||51.7%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||54.0%|
|
||||
|0984|String Without AAA or BBB|[Go]({{< relref "/ChapterFour/0900~0999/0984.String-Without-AAA-or-BBB.md" >}})|Medium||||39.3%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium||||48.0%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.8%|
|
||||
|1003|Check If Word Is Valid After Substitutions|[Go]({{< relref "/ChapterFour/1000~1099/1003.Check-If-Word-Is-Valid-After-Substitutions.md" >}})|Medium| O(n)| O(1)||57.2%|
|
||||
|0981|Time Based Key-Value Store|[Go]({{< relref "/ChapterFour/0900~0999/0981.Time-Based-Key-Value-Store.md" >}})|Medium||||53.1%|
|
||||
|0984|String Without AAA or BBB|[Go]({{< relref "/ChapterFour/0900~0999/0984.String-Without-AAA-or-BBB.md" >}})|Medium||||40.3%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium||||49.1%|
|
||||
|1002|Find Common Characters|[Go]({{< relref "/ChapterFour/1000~1099/1002.Find-Common-Characters.md" >}})|Easy||||68.5%|
|
||||
|1003|Check If Word Is Valid After Substitutions|[Go]({{< relref "/ChapterFour/1000~1099/1003.Check-If-Word-Is-Valid-After-Substitutions.md" >}})|Medium| O(n)| O(1)||57.3%|
|
||||
|1021|Remove Outermost Parentheses|[Go]({{< relref "/ChapterFour/1000~1099/1021.Remove-Outermost-Parentheses.md" >}})|Easy||||79.5%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.4%|
|
||||
|1047|Remove All Adjacent Duplicates In String|[Go]({{< relref "/ChapterFour/1000~1099/1047.Remove-All-Adjacent-Duplicates-In-String.md" >}})|Easy||||71.5%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||56.4%|
|
||||
|1078|Occurrences After Bigram|[Go]({{< relref "/ChapterFour/1000~1099/1078.Occurrences-After-Bigram.md" >}})|Easy||||64.6%|
|
||||
|1079|Letter Tile Possibilities|[Go]({{< relref "/ChapterFour/1000~1099/1079.Letter-Tile-Possibilities.md" >}})|Medium||||76.2%|
|
||||
|1108|Defanging an IP Address|[Go]({{< relref "/ChapterFour/1100~1199/1108.Defanging-an-IP-Address.md" >}})|Easy||||88.5%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.9%|
|
||||
|1047|Remove All Adjacent Duplicates In String|[Go]({{< relref "/ChapterFour/1000~1099/1047.Remove-All-Adjacent-Duplicates-In-String.md" >}})|Easy||||71.2%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.2%|
|
||||
|1078|Occurrences After Bigram|[Go]({{< relref "/ChapterFour/1000~1099/1078.Occurrences-After-Bigram.md" >}})|Easy||||64.4%|
|
||||
|1079|Letter Tile Possibilities|[Go]({{< relref "/ChapterFour/1000~1099/1079.Letter-Tile-Possibilities.md" >}})|Medium||||76.1%|
|
||||
|1108|Defanging an IP Address|[Go]({{< relref "/ChapterFour/1100~1199/1108.Defanging-an-IP-Address.md" >}})|Easy||||88.7%|
|
||||
|1111|Maximum Nesting Depth of Two Valid Parentheses Strings|[Go]({{< relref "/ChapterFour/1100~1199/1111.Maximum-Nesting-Depth-of-Two-Valid-Parentheses-Strings.md" >}})|Medium||||72.6%|
|
||||
|1143|Longest Common Subsequence|[Go]({{< relref "/ChapterFour/1100~1199/1143.Longest-Common-Subsequence.md" >}})|Medium||||58.8%|
|
||||
|1154|Day of the Year|[Go]({{< relref "/ChapterFour/1100~1199/1154.Day-of-the-Year.md" >}})|Easy||||50.0%|
|
||||
|1154|Day of the Year|[Go]({{< relref "/ChapterFour/1100~1199/1154.Day-of-the-Year.md" >}})|Easy||||50.8%|
|
||||
|1160|Find Words That Can Be Formed by Characters|[Go]({{< relref "/ChapterFour/1100~1199/1160.Find-Words-That-Can-Be-Formed-by-Characters.md" >}})|Easy||||67.8%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.6%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||40.7%|
|
||||
|1189|Maximum Number of Balloons|[Go]({{< relref "/ChapterFour/1100~1199/1189.Maximum-Number-of-Balloons.md" >}})|Easy||||62.0%|
|
||||
|1190|Reverse Substrings Between Each Pair of Parentheses|[Go]({{< relref "/ChapterFour/1100~1199/1190.Reverse-Substrings-Between-Each-Pair-of-Parentheses.md" >}})|Medium||||65.0%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||49.8%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.0%|
|
||||
|1209|Remove All Adjacent Duplicates in String II|[Go]({{< relref "/ChapterFour/1200~1299/1209.Remove-All-Adjacent-Duplicates-in-String-II.md" >}})|Medium||||56.7%|
|
||||
|1221|Split a String in Balanced Strings|[Go]({{< relref "/ChapterFour/1200~1299/1221.Split-a-String-in-Balanced-Strings.md" >}})|Easy||||84.5%|
|
||||
|1234|Replace the Substring for Balanced String|[Go]({{< relref "/ChapterFour/1200~1299/1234.Replace-the-Substring-for-Balanced-String.md" >}})|Medium||||35.1%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.5%|
|
||||
|1249|Minimum Remove to Make Valid Parentheses|[Go]({{< relref "/ChapterFour/1200~1299/1249.Minimum-Remove-to-Make-Valid-Parentheses.md" >}})|Medium||||64.7%|
|
||||
|1268|Search Suggestions System|[Go]({{< relref "/ChapterFour/1200~1299/1268.Search-Suggestions-System.md" >}})|Medium||||65.6%|
|
||||
|1332|Remove Palindromic Subsequences|[Go]({{< relref "/ChapterFour/1300~1399/1332.Remove-Palindromic-Subsequences.md" >}})|Easy||||68.8%|
|
||||
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|
||||
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||46.8%|
|
||||
|1189|Maximum Number of Balloons|[Go]({{< relref "/ChapterFour/1100~1199/1189.Maximum-Number-of-Balloons.md" >}})|Easy||||62.5%|
|
||||
|1190|Reverse Substrings Between Each Pair of Parentheses|[Go]({{< relref "/ChapterFour/1100~1199/1190.Reverse-Substrings-Between-Each-Pair-of-Parentheses.md" >}})|Medium||||65.3%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||51.3%|
|
||||
|1208|Get Equal Substrings Within Budget|[Go]({{< relref "/ChapterFour/1200~1299/1208.Get-Equal-Substrings-Within-Budget.md" >}})|Medium||||45.6%|
|
||||
|1209|Remove All Adjacent Duplicates in String II|[Go]({{< relref "/ChapterFour/1200~1299/1209.Remove-All-Adjacent-Duplicates-in-String-II.md" >}})|Medium||||56.1%|
|
||||
|1221|Split a String in Balanced Strings|[Go]({{< relref "/ChapterFour/1200~1299/1221.Split-a-String-in-Balanced-Strings.md" >}})|Easy||||84.7%|
|
||||
|1234|Replace the Substring for Balanced String|[Go]({{< relref "/ChapterFour/1200~1299/1234.Replace-the-Substring-for-Balanced-String.md" >}})|Medium||||35.5%|
|
||||
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.7%|
|
||||
|1249|Minimum Remove to Make Valid Parentheses|[Go]({{< relref "/ChapterFour/1200~1299/1249.Minimum-Remove-to-Make-Valid-Parentheses.md" >}})|Medium||||65.0%|
|
||||
|1268|Search Suggestions System|[Go]({{< relref "/ChapterFour/1200~1299/1268.Search-Suggestions-System.md" >}})|Medium||||65.8%|
|
||||
|1332|Remove Palindromic Subsequences|[Go]({{< relref "/ChapterFour/1300~1399/1332.Remove-Palindromic-Subsequences.md" >}})|Easy||||69.1%|
|
||||
|1396|Design Underground System|[Go]({{< relref "/ChapterFour/1300~1399/1396.Design-Underground-System.md" >}})|Medium||||71.7%|
|
||||
|1455|Check If a Word Occurs As a Prefix of Any Word in a Sentence|[Go]({{< relref "/ChapterFour/1400~1499/1455.Check-If-a-Word-Occurs-As-a-Prefix-of-Any-Word-in-a-Sentence.md" >}})|Easy||||64.6%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.3%|
|
||||
|1573|Number of Ways to Split a String|[Go]({{< relref "/ChapterFour/1500~1599/1573.Number-of-Ways-to-Split-a-String.md" >}})|Medium||||31.4%|
|
||||
|1614|Maximum Nesting Depth of the Parentheses|[Go]({{< relref "/ChapterFour/1600~1699/1614.Maximum-Nesting-Depth-of-the-Parentheses.md" >}})|Easy||||82.7%|
|
||||
|1624|Largest Substring Between Two Equal Characters|[Go]({{< relref "/ChapterFour/1600~1699/1624.Largest-Substring-Between-Two-Equal-Characters.md" >}})|Easy||||58.7%|
|
||||
|1629|Slowest Key|[Go]({{< relref "/ChapterFour/1600~1699/1629.Slowest-Key.md" >}})|Easy||||59.1%|
|
||||
|1647|Minimum Deletions to Make Character Frequencies Unique|[Go]({{< relref "/ChapterFour/1600~1699/1647.Minimum-Deletions-to-Make-Character-Frequencies-Unique.md" >}})|Medium||||55.7%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||53.0%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.8%|
|
||||
|1455|Check If a Word Occurs As a Prefix of Any Word in a Sentence|[Go]({{< relref "/ChapterFour/1400~1499/1455.Check-If-a-Word-Occurs-As-a-Prefix-of-Any-Word-in-a-Sentence.md" >}})|Easy||||64.4%|
|
||||
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.5%|
|
||||
|1573|Number of Ways to Split a String|[Go]({{< relref "/ChapterFour/1500~1599/1573.Number-of-Ways-to-Split-a-String.md" >}})|Medium||||31.5%|
|
||||
|1614|Maximum Nesting Depth of the Parentheses|[Go]({{< relref "/ChapterFour/1600~1699/1614.Maximum-Nesting-Depth-of-the-Parentheses.md" >}})|Easy||||82.9%|
|
||||
|1624|Largest Substring Between Two Equal Characters|[Go]({{< relref "/ChapterFour/1600~1699/1624.Largest-Substring-Between-Two-Equal-Characters.md" >}})|Easy||||59.1%|
|
||||
|1629|Slowest Key|[Go]({{< relref "/ChapterFour/1600~1699/1629.Slowest-Key.md" >}})|Easy||||59.8%|
|
||||
|1647|Minimum Deletions to Make Character Frequencies Unique|[Go]({{< relref "/ChapterFour/1600~1699/1647.Minimum-Deletions-to-Make-Character-Frequencies-Unique.md" >}})|Medium||||55.9%|
|
||||
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||54.1%|
|
||||
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.7%|
|
||||
|1662|Check If Two String Arrays are Equivalent|[Go]({{< relref "/ChapterFour/1600~1699/1662.Check-If-Two-String-Arrays-are-Equivalent.md" >}})|Easy||||82.0%|
|
||||
|1663|Smallest String With A Given Numeric Value|[Go]({{< relref "/ChapterFour/1600~1699/1663.Smallest-String-With-A-Given-Numeric-Value.md" >}})|Medium||||64.3%|
|
||||
|1668|Maximum Repeating Substring|[Go]({{< relref "/ChapterFour/1600~1699/1668.Maximum-Repeating-Substring.md" >}})|Easy||||38.9%|
|
||||
|1678|Goal Parser Interpretation|[Go]({{< relref "/ChapterFour/1600~1699/1678.Goal-Parser-Interpretation.md" >}})|Easy||||85.0%|
|
||||
|1663|Smallest String With A Given Numeric Value|[Go]({{< relref "/ChapterFour/1600~1699/1663.Smallest-String-With-A-Given-Numeric-Value.md" >}})|Medium||||64.1%|
|
||||
|1668|Maximum Repeating Substring|[Go]({{< relref "/ChapterFour/1600~1699/1668.Maximum-Repeating-Substring.md" >}})|Easy||||39.4%|
|
||||
|1678|Goal Parser Interpretation|[Go]({{< relref "/ChapterFour/1600~1699/1678.Goal-Parser-Interpretation.md" >}})|Easy||||85.3%|
|
||||
|1684|Count the Number of Consistent Strings|[Go]({{< relref "/ChapterFour/1600~1699/1684.Count-the-Number-of-Consistent-Strings.md" >}})|Easy||||81.7%|
|
||||
|1689|Partitioning Into Minimum Number Of Deci-Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1689.Partitioning-Into-Minimum-Number-Of-Deci-Binary-Numbers.md" >}})|Medium||||88.0%|
|
||||
|1694|Reformat Phone Number|[Go]({{< relref "/ChapterFour/1600~1699/1694.Reformat-Phone-Number.md" >}})|Easy||||64.8%|
|
||||
|1704|Determine if String Halves Are Alike|[Go]({{< relref "/ChapterFour/1700~1799/1704.Determine-if-String-Halves-Are-Alike.md" >}})|Easy||||78.5%|
|
||||
|1736|Latest Time by Replacing Hidden Digits|[Go]({{< relref "/ChapterFour/1700~1799/1736.Latest-Time-by-Replacing-Hidden-Digits.md" >}})|Easy||||41.6%|
|
||||
|1758|Minimum Changes To Make Alternating Binary String|[Go]({{< relref "/ChapterFour/1700~1799/1758.Minimum-Changes-To-Make-Alternating-Binary-String.md" >}})|Easy||||58.7%|
|
||||
|1689|Partitioning Into Minimum Number Of Deci-Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1689.Partitioning-Into-Minimum-Number-Of-Deci-Binary-Numbers.md" >}})|Medium||||87.9%|
|
||||
|1694|Reformat Phone Number|[Go]({{< relref "/ChapterFour/1600~1699/1694.Reformat-Phone-Number.md" >}})|Easy||||65.1%|
|
||||
|1704|Determine if String Halves Are Alike|[Go]({{< relref "/ChapterFour/1700~1799/1704.Determine-if-String-Halves-Are-Alike.md" >}})|Easy||||78.4%|
|
||||
|1736|Latest Time by Replacing Hidden Digits|[Go]({{< relref "/ChapterFour/1700~1799/1736.Latest-Time-by-Replacing-Hidden-Digits.md" >}})|Easy||||41.9%|
|
||||
|1758|Minimum Changes To Make Alternating Binary String|[Go]({{< relref "/ChapterFour/1700~1799/1758.Minimum-Changes-To-Make-Alternating-Binary-String.md" >}})|Easy||||59.0%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -9,83 +9,86 @@ weight: 6
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy| O(n)| O(1)||67.8%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||44.6%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium| O(n^2)| O(n)||55.6%|
|
||||
|0098|Validate Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0098.Validate-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||29.4%|
|
||||
|0099|Recover Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0099.Recover-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||44.0%|
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy| O(n)| O(1)||54.6%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||49.5%|
|
||||
|0102|Binary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0102.Binary-Tree-Level-Order-Traversal.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0103|Binary Tree Zigzag Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0103.Binary-Tree-Zigzag-Level-Order-Traversal.md" >}})|Medium| O(n)| O(n)||51.4%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||69.4%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||54.5%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||51.7%|
|
||||
|0107|Binary Tree Level Order Traversal II|[Go]({{< relref "/ChapterFour/0100~0199/0107.Binary-Tree-Level-Order-Traversal-II.md" >}})|Medium| O(n)| O(1)||56.5%|
|
||||
|0108|Convert Sorted Array to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0108.Convert-Sorted-Array-to-Binary-Search-Tree.md" >}})|Easy| O(n)| O(1)||63.2%|
|
||||
|0109|Convert Sorted List to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0109.Convert-Sorted-List-to-Binary-Search-Tree.md" >}})|Medium||||53.0%|
|
||||
|0110|Balanced Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0110.Balanced-Binary-Tree.md" >}})|Easy| O(n)| O(1)||45.4%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||40.8%|
|
||||
|0112|Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0112.Path-Sum.md" >}})|Easy| O(n)| O(1)||43.5%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium| O(n)| O(1)||51.5%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium| O(n)| O(1)||54.6%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||51.4%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard| O(n)| O(1)||36.3%|
|
||||
|0129|Sum Root to Leaf Numbers|[Go]({{< relref "/ChapterFour/0100~0199/0129.Sum-Root-to-Leaf-Numbers.md" >}})|Medium| O(n)| O(1)||52.8%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy| O(n)| O(1)||59.2%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy| O(n)| O(1)||59.8%|
|
||||
|0173|Binary Search Tree Iterator|[Go]({{< relref "/ChapterFour/0100~0199/0173.Binary-Search-Tree-Iterator.md" >}})|Medium| O(n)| O(1)||62.1%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||57.5%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium| O(n)| O(1)||51.3%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy| O(n)| O(1)||68.6%|
|
||||
|0230|Kth Smallest Element in a BST|[Go]({{< relref "/ChapterFour/0200~0299/0230.Kth-Smallest-Element-in-a-BST.md" >}})|Medium| O(n)| O(1)||64.3%|
|
||||
|0235|Lowest Common Ancestor of a Binary Search Tree|[Go]({{< relref "/ChapterFour/0200~0299/0235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree.md" >}})|Easy| O(n)| O(1)||54.0%|
|
||||
|0236|Lowest Common Ancestor of a Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0236.Lowest-Common-Ancestor-of-a-Binary-Tree.md" >}})|Medium| O(n)| O(1)||51.5%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy| O(n)| O(1)||55.6%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||51.4%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium||||41.5%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.2%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||56.8%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy| O(n)| O(1)||52.9%|
|
||||
|0429|N-ary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal.md" >}})|Medium||||67.9%|
|
||||
|0437|Path Sum III|[Go]({{< relref "/ChapterFour/0400~0499/0437.Path-Sum-III.md" >}})|Medium| O(n)| O(1)||48.8%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||60.5%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||63.6%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.1%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.5%|
|
||||
|0538|Convert BST to Greater Tree|[Go]({{< relref "/ChapterFour/0500~0599/0538.Convert-BST-to-Greater-Tree.md" >}})|Medium||||61.0%|
|
||||
|0543|Diameter of Binary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0543.Diameter-of-Binary-Tree.md" >}})|Easy||||50.9%|
|
||||
|0563|Binary Tree Tilt|[Go]({{< relref "/ChapterFour/0500~0599/0563.Binary-Tree-Tilt.md" >}})|Easy||||54.3%|
|
||||
|0572|Subtree of Another Tree|[Go]({{< relref "/ChapterFour/0500~0599/0572.Subtree-of-Another-Tree.md" >}})|Easy||||44.7%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||74.8%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||76.2%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.3%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy| O(n)| O(n)||66.9%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||56.8%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.4%|
|
||||
|0094|Binary Tree Inorder Traversal|[Go]({{< relref "/ChapterFour/0001~0099/0094.Binary-Tree-Inorder-Traversal.md" >}})|Easy| O(n)| O(1)||69.1%|
|
||||
|0095|Unique Binary Search Trees II|[Go]({{< relref "/ChapterFour/0001~0099/0095.Unique-Binary-Search-Trees-II.md" >}})|Medium||||47.6%|
|
||||
|0096|Unique Binary Search Trees|[Go]({{< relref "/ChapterFour/0001~0099/0096.Unique-Binary-Search-Trees.md" >}})|Medium| O(n^2)| O(n)||57.3%|
|
||||
|0098|Validate Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0098.Validate-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||29.8%|
|
||||
|0099|Recover Binary Search Tree|[Go]({{< relref "/ChapterFour/0001~0099/0099.Recover-Binary-Search-Tree.md" >}})|Medium| O(n)| O(1)||45.0%|
|
||||
|0100|Same Tree|[Go]({{< relref "/ChapterFour/0100~0199/0100.Same-Tree.md" >}})|Easy| O(n)| O(1)||54.9%|
|
||||
|0101|Symmetric Tree|[Go]({{< relref "/ChapterFour/0100~0199/0101.Symmetric-Tree.md" >}})|Easy| O(n)| O(1)||50.4%|
|
||||
|0102|Binary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0102.Binary-Tree-Level-Order-Traversal.md" >}})|Medium| O(n)| O(1)||59.4%|
|
||||
|0103|Binary Tree Zigzag Level Order Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0103.Binary-Tree-Zigzag-Level-Order-Traversal.md" >}})|Medium| O(n)| O(n)||52.3%|
|
||||
|0104|Maximum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0104.Maximum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||70.3%|
|
||||
|0105|Construct Binary Tree from Preorder and Inorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0105.Construct-Binary-Tree-from-Preorder-and-Inorder-Traversal.md" >}})|Medium||||55.7%|
|
||||
|0106|Construct Binary Tree from Inorder and Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0106.Construct-Binary-Tree-from-Inorder-and-Postorder-Traversal.md" >}})|Medium||||53.7%|
|
||||
|0107|Binary Tree Level Order Traversal II|[Go]({{< relref "/ChapterFour/0100~0199/0107.Binary-Tree-Level-Order-Traversal-II.md" >}})|Medium| O(n)| O(1)||57.4%|
|
||||
|0108|Convert Sorted Array to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0108.Convert-Sorted-Array-to-Binary-Search-Tree.md" >}})|Easy| O(n)| O(1)||64.4%|
|
||||
|0109|Convert Sorted List to Binary Search Tree|[Go]({{< relref "/ChapterFour/0100~0199/0109.Convert-Sorted-List-to-Binary-Search-Tree.md" >}})|Medium||||54.1%|
|
||||
|0110|Balanced Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0110.Balanced-Binary-Tree.md" >}})|Easy| O(n)| O(1)||45.9%|
|
||||
|0111|Minimum Depth of Binary Tree|[Go]({{< relref "/ChapterFour/0100~0199/0111.Minimum-Depth-of-Binary-Tree.md" >}})|Easy| O(n)| O(1)||41.4%|
|
||||
|0112|Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0112.Path-Sum.md" >}})|Easy| O(n)| O(1)||44.3%|
|
||||
|0113|Path Sum II|[Go]({{< relref "/ChapterFour/0100~0199/0113.Path-Sum-II.md" >}})|Medium| O(n)| O(1)||52.6%|
|
||||
|0114|Flatten Binary Tree to Linked List|[Go]({{< relref "/ChapterFour/0100~0199/0114.Flatten-Binary-Tree-to-Linked-List.md" >}})|Medium| O(n)| O(1)||56.0%|
|
||||
|0116|Populating Next Right Pointers in Each Node|[Go]({{< relref "/ChapterFour/0100~0199/0116.Populating-Next-Right-Pointers-in-Each-Node.md" >}})|Medium||||53.5%|
|
||||
|0124|Binary Tree Maximum Path Sum|[Go]({{< relref "/ChapterFour/0100~0199/0124.Binary-Tree-Maximum-Path-Sum.md" >}})|Hard| O(n)| O(1)||36.9%|
|
||||
|0129|Sum Root to Leaf Numbers|[Go]({{< relref "/ChapterFour/0100~0199/0129.Sum-Root-to-Leaf-Numbers.md" >}})|Medium| O(n)| O(1)||55.1%|
|
||||
|0144|Binary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0144.Binary-Tree-Preorder-Traversal.md" >}})|Easy| O(n)| O(1)||60.5%|
|
||||
|0145|Binary Tree Postorder Traversal|[Go]({{< relref "/ChapterFour/0100~0199/0145.Binary-Tree-Postorder-Traversal.md" >}})|Easy| O(n)| O(1)||61.6%|
|
||||
|0173|Binary Search Tree Iterator|[Go]({{< relref "/ChapterFour/0100~0199/0173.Binary-Search-Tree-Iterator.md" >}})|Medium| O(n)| O(1)||63.6%|
|
||||
|0199|Binary Tree Right Side View|[Go]({{< relref "/ChapterFour/0100~0199/0199.Binary-Tree-Right-Side-View.md" >}})|Medium| O(n)| O(1)||58.4%|
|
||||
|0222|Count Complete Tree Nodes|[Go]({{< relref "/ChapterFour/0200~0299/0222.Count-Complete-Tree-Nodes.md" >}})|Medium| O(n)| O(1)||53.6%|
|
||||
|0226|Invert Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0226.Invert-Binary-Tree.md" >}})|Easy| O(n)| O(1)||70.1%|
|
||||
|0230|Kth Smallest Element in a BST|[Go]({{< relref "/ChapterFour/0200~0299/0230.Kth-Smallest-Element-in-a-BST.md" >}})|Medium| O(n)| O(1)||65.3%|
|
||||
|0235|Lowest Common Ancestor of a Binary Search Tree|[Go]({{< relref "/ChapterFour/0200~0299/0235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree.md" >}})|Easy| O(n)| O(1)||55.2%|
|
||||
|0236|Lowest Common Ancestor of a Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0236.Lowest-Common-Ancestor-of-a-Binary-Tree.md" >}})|Medium| O(n)| O(1)||53.1%|
|
||||
|0257|Binary Tree Paths|[Go]({{< relref "/ChapterFour/0200~0299/0257.Binary-Tree-Paths.md" >}})|Easy| O(n)| O(1)||56.8%|
|
||||
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.4%|
|
||||
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium||||43.4%|
|
||||
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.5%|
|
||||
|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.6%|
|
||||
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy| O(n)| O(1)||54.3%|
|
||||
|0429|N-ary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal.md" >}})|Medium||||68.2%|
|
||||
|0437|Path Sum III|[Go]({{< relref "/ChapterFour/0400~0499/0437.Path-Sum-III.md" >}})|Medium| O(n)| O(1)||49.7%|
|
||||
|0508|Most Frequent Subtree Sum|[Go]({{< relref "/ChapterFour/0500~0599/0508.Most-Frequent-Subtree-Sum.md" >}})|Medium||||61.5%|
|
||||
|0513|Find Bottom Left Tree Value|[Go]({{< relref "/ChapterFour/0500~0599/0513.Find-Bottom-Left-Tree-Value.md" >}})|Medium||||64.2%|
|
||||
|0515|Find Largest Value in Each Tree Row|[Go]({{< relref "/ChapterFour/0500~0599/0515.Find-Largest-Value-in-Each-Tree-Row.md" >}})|Medium| O(n)| O(n)||63.8%|
|
||||
|0530|Minimum Absolute Difference in BST|[Go]({{< relref "/ChapterFour/0500~0599/0530.Minimum-Absolute-Difference-in-BST.md" >}})|Easy||||55.8%|
|
||||
|0538|Convert BST to Greater Tree|[Go]({{< relref "/ChapterFour/0500~0599/0538.Convert-BST-to-Greater-Tree.md" >}})|Medium||||61.8%|
|
||||
|0543|Diameter of Binary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0543.Diameter-of-Binary-Tree.md" >}})|Easy||||52.6%|
|
||||
|0559|Maximum Depth of N-ary Tree|[Go]({{< relref "/ChapterFour/0500~0599/0559.Maximum-Depth-of-N-ary-Tree.md" >}})|Easy||||70.4%|
|
||||
|0563|Binary Tree Tilt|[Go]({{< relref "/ChapterFour/0500~0599/0563.Binary-Tree-Tilt.md" >}})|Easy||||55.0%|
|
||||
|0572|Subtree of Another Tree|[Go]({{< relref "/ChapterFour/0500~0599/0572.Subtree-of-Another-Tree.md" >}})|Easy||||44.9%|
|
||||
|0589|N-ary Tree Preorder Traversal|[Go]({{< relref "/ChapterFour/0500~0599/0589.N-ary-Tree-Preorder-Traversal.md" >}})|Easy||||75.3%|
|
||||
|0617|Merge Two Binary Trees|[Go]({{< relref "/ChapterFour/0600~0699/0617.Merge-Two-Binary-Trees.md" >}})|Easy||||77.0%|
|
||||
|0623|Add One Row to Tree|[Go]({{< relref "/ChapterFour/0600~0699/0623.Add-One-Row-to-Tree.md" >}})|Medium||||53.5%|
|
||||
|0637|Average of Levels in Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0637.Average-of-Levels-in-Binary-Tree.md" >}})|Easy| O(n)| O(n)||67.6%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||58.1%|
|
||||
|0662|Maximum Width of Binary Tree|[Go]({{< relref "/ChapterFour/0600~0699/0662.Maximum-Width-of-Binary-Tree.md" >}})|Medium||||39.7%|
|
||||
|0669|Trim a Binary Search Tree|[Go]({{< relref "/ChapterFour/0600~0699/0669.Trim-a-Binary-Search-Tree.md" >}})|Medium||||64.4%|
|
||||
|0703|Kth Largest Element in a Stream|[Go]({{< relref "/ChapterFour/0700~0799/0703.Kth-Largest-Element-in-a-Stream.md" >}})|Easy||||51.6%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||54.9%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||47.8%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||59.0%|
|
||||
|0872|Leaf-Similar Trees|[Go]({{< relref "/ChapterFour/0800~0899/0872.Leaf-Similar-Trees.md" >}})|Easy||||64.6%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.3%|
|
||||
|0938|Range Sum of BST|[Go]({{< relref "/ChapterFour/0900~0999/0938.Range-Sum-of-BST.md" >}})|Easy||||83.7%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||40.9%|
|
||||
|0700|Search in a Binary Search Tree|[Go]({{< relref "/ChapterFour/0700~0799/0700.Search-in-a-Binary-Search-Tree.md" >}})|Easy||||74.4%|
|
||||
|0703|Kth Largest Element in a Stream|[Go]({{< relref "/ChapterFour/0700~0799/0703.Kth-Largest-Element-in-a-Stream.md" >}})|Easy||||52.1%|
|
||||
|0783|Minimum Distance Between BST Nodes|[Go]({{< relref "/ChapterFour/0700~0799/0783.Minimum-Distance-Between-BST-Nodes.md" >}})|Easy||||55.4%|
|
||||
|0834|Sum of Distances in Tree|[Go]({{< relref "/ChapterFour/0800~0899/0834.Sum-of-Distances-in-Tree.md" >}})|Hard||||52.4%|
|
||||
|0863|All Nodes Distance K in Binary Tree|[Go]({{< relref "/ChapterFour/0800~0899/0863.All-Nodes-Distance-K-in-Binary-Tree.md" >}})|Medium||||60.0%|
|
||||
|0872|Leaf-Similar Trees|[Go]({{< relref "/ChapterFour/0800~0899/0872.Leaf-Similar-Trees.md" >}})|Easy||||64.7%|
|
||||
|0897|Increasing Order Search Tree|[Go]({{< relref "/ChapterFour/0800~0899/0897.Increasing-Order-Search-Tree.md" >}})|Easy||||75.6%|
|
||||
|0938|Range Sum of BST|[Go]({{< relref "/ChapterFour/0900~0999/0938.Range-Sum-of-BST.md" >}})|Easy||||84.1%|
|
||||
|0958|Check Completeness of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0958.Check-Completeness-of-a-Binary-Tree.md" >}})|Medium||||53.0%|
|
||||
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||41.2%|
|
||||
|0971|Flip Binary Tree To Match Preorder Traversal|[Go]({{< relref "/ChapterFour/0900~0999/0971.Flip-Binary-Tree-To-Match-Preorder-Traversal.md" >}})|Medium||||49.9%|
|
||||
|0979|Distribute Coins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0979.Distribute-Coins-in-Binary-Tree.md" >}})|Medium||||70.4%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||39.3%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy| O(n)| O(1)||52.4%|
|
||||
|1026|Maximum Difference Between Node and Ancestor|[Go]({{< relref "/ChapterFour/1000~1099/1026.Maximum-Difference-Between-Node-and-Ancestor.md" >}})|Medium||||70.3%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.4%|
|
||||
|1038|Binary Search Tree to Greater Sum Tree|[Go]({{< relref "/ChapterFour/1000~1099/1038.Binary-Search-Tree-to-Greater-Sum-Tree.md" >}})|Medium||||83.4%|
|
||||
|1104|Path In Zigzag Labelled Binary Tree|[Go]({{< relref "/ChapterFour/1100~1199/1104.Path-In-Zigzag-Labelled-Binary-Tree.md" >}})|Medium||||73.8%|
|
||||
|1110|Delete Nodes And Return Forest|[Go]({{< relref "/ChapterFour/1100~1199/1110.Delete-Nodes-And-Return-Forest.md" >}})|Medium||||68.4%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||68.6%|
|
||||
|0979|Distribute Coins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0979.Distribute-Coins-in-Binary-Tree.md" >}})|Medium||||70.8%|
|
||||
|0987|Vertical Order Traversal of a Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0987.Vertical-Order-Traversal-of-a-Binary-Tree.md" >}})|Hard||||40.1%|
|
||||
|0993|Cousins in Binary Tree|[Go]({{< relref "/ChapterFour/0900~0999/0993.Cousins-in-Binary-Tree.md" >}})|Easy| O(n)| O(1)||53.6%|
|
||||
|1026|Maximum Difference Between Node and Ancestor|[Go]({{< relref "/ChapterFour/1000~1099/1026.Maximum-Difference-Between-Node-and-Ancestor.md" >}})|Medium||||70.8%|
|
||||
|1028|Recover a Tree From Preorder Traversal|[Go]({{< relref "/ChapterFour/1000~1099/1028.Recover-a-Tree-From-Preorder-Traversal.md" >}})|Hard||||71.9%|
|
||||
|1038|Binary Search Tree to Greater Sum Tree|[Go]({{< relref "/ChapterFour/1000~1099/1038.Binary-Search-Tree-to-Greater-Sum-Tree.md" >}})|Medium||||84.0%|
|
||||
|1104|Path In Zigzag Labelled Binary Tree|[Go]({{< relref "/ChapterFour/1100~1199/1104.Path-In-Zigzag-Labelled-Binary-Tree.md" >}})|Medium||||74.0%|
|
||||
|1110|Delete Nodes And Return Forest|[Go]({{< relref "/ChapterFour/1100~1199/1110.Delete-Nodes-And-Return-Forest.md" >}})|Medium||||68.8%|
|
||||
|1123|Lowest Common Ancestor of Deepest Leaves|[Go]({{< relref "/ChapterFour/1100~1199/1123.Lowest-Common-Ancestor-of-Deepest-Leaves.md" >}})|Medium||||69.2%|
|
||||
|1145|Binary Tree Coloring Game|[Go]({{< relref "/ChapterFour/1100~1199/1145.Binary-Tree-Coloring-Game.md" >}})|Medium||||51.1%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.4%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.2%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||61.9%|
|
||||
|1302|Deepest Leaves Sum|[Go]({{< relref "/ChapterFour/1300~1399/1302.Deepest-Leaves-Sum.md" >}})|Medium||||85.6%|
|
||||
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.6%|
|
||||
|1600|Throne Inheritance|[Go]({{< relref "/ChapterFour/1600~1699/1600.Throne-Inheritance.md" >}})|Medium||||62.3%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -32,80 +32,80 @@ weight: 3
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0011|Container With Most Water|[Go]({{< relref "/ChapterFour/0001~0099/0011.Container-With-Most-Water.md" >}})|Medium| O(n)| O(1)||53.1%|
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium| O(n^2)| O(n)|❤️|29.1%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium| O(n^2)| O(1)|❤️|46.7%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium| O(n^3)| O(n^2)|❤️|36.4%|
|
||||
|0019|Remove Nth Node From End of List|[Go]({{< relref "/ChapterFour/0001~0099/0019.Remove-Nth-Node-From-End-of-List.md" >}})|Medium| O(n)| O(1)||36.6%|
|
||||
|0026|Remove Duplicates from Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0026.Remove-Duplicates-from-Sorted-Array.md" >}})|Easy| O(n)| O(1)||47.4%|
|
||||
|0027|Remove Element|[Go]({{< relref "/ChapterFour/0001~0099/0027.Remove-Element.md" >}})|Easy| O(n)| O(1)||50.1%|
|
||||
|0028|Implement strStr()|[Go]({{< relref "/ChapterFour/0001~0099/0028.Implement-strStr.md" >}})|Easy| O(n)| O(1)||35.8%|
|
||||
|0031|Next Permutation|[Go]({{< relref "/ChapterFour/0001~0099/0031.Next-Permutation.md" >}})|Medium||||34.4%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|53.0%|
|
||||
|0061|Rotate List|[Go]({{< relref "/ChapterFour/0001~0099/0061.Rotate-List.md" >}})|Medium| O(n)| O(1)||32.6%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|51.3%|
|
||||
|0080|Remove Duplicates from Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0080.Remove-Duplicates-from-Sorted-Array-II.md" >}})|Medium| O(n)| O(1||47.2%|
|
||||
|0082|Remove Duplicates from Sorted List II|[Go]({{< relref "/ChapterFour/0001~0099/0082.Remove-Duplicates-from-Sorted-List-II.md" >}})|Medium||||40.4%|
|
||||
|0086|Partition List|[Go]({{< relref "/ChapterFour/0001~0099/0086.Partition-List.md" >}})|Medium| O(n)| O(1)|❤️|45.9%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy| O(n)| O(1)|❤️|41.5%|
|
||||
|0125|Valid Palindrome|[Go]({{< relref "/ChapterFour/0100~0199/0125.Valid-Palindrome.md" >}})|Easy| O(n)| O(1)||39.4%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy| O(n)| O(1)|❤️|43.8%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium| O(n)| O(1)|❤️|41.1%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium||||42.9%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium||||48.1%|
|
||||
|0151|Reverse Words in a String|[Go]({{< relref "/ChapterFour/0100~0199/0151.Reverse-Words-in-a-String.md" >}})|Medium||||25.3%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy||||46.4%|
|
||||
|0167|Two Sum II - Input array is sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-array-is-sorted.md" >}})|Easy| O(n)| O(1)||56.5%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||36.8%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy||||51.9%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy| O(n)| O(1)||43.7%|
|
||||
|0283|Move Zeroes|[Go]({{< relref "/ChapterFour/0200~0299/0283.Move-Zeroes.md" >}})|Easy| O(n)| O(1)||59.0%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.1%|
|
||||
|0344|Reverse String|[Go]({{< relref "/ChapterFour/0300~0399/0344.Reverse-String.md" >}})|Easy| O(n)| O(1)||71.6%|
|
||||
|0345|Reverse Vowels of a String|[Go]({{< relref "/ChapterFour/0300~0399/0345.Reverse-Vowels-of-a-String.md" >}})|Easy| O(n)| O(1)||45.9%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||66.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||52.7%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy||||49.8%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||30.8%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium| O(n)| O(1) ||50.4%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium| O(n)| O(n)||36.3%|
|
||||
|0541|Reverse String II|[Go]({{< relref "/ChapterFour/0500~0599/0541.Reverse-String-II.md" >}})|Easy||||49.8%|
|
||||
|0557|Reverse Words in a String III|[Go]({{< relref "/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III.md" >}})|Easy||||73.5%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium| O(n)| O(1)|❤️|44.7%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.3%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.0%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||33.0%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||56.8%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.3%|
|
||||
|0696|Count Binary Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0696.Count-Binary-Substrings.md" >}})|Easy||||61.8%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.2%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium| O(n)| O(1)|❤️|78.3%|
|
||||
|0795|Number of Subarrays with Bounded Maximum|[Go]({{< relref "/ChapterFour/0700~0799/0795.Number-of-Subarrays-with-Bounded-Maximum.md" >}})|Medium||||52.0%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.4%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium| O(n log n)| O(n)||39.8%|
|
||||
|0832|Flipping an Image|[Go]({{< relref "/ChapterFour/0800~0899/0832.Flipping-an-Image.md" >}})|Easy||||78.8%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium| O(n)| O(n)||51.8%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy| O(n)| O(n) ||47.3%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium| O(n)| O(1) ||39.1%|
|
||||
|0876|Middle of the Linked List|[Go]({{< relref "/ChapterFour/0800~0899/0876.Middle-of-the-Linked-List.md" >}})|Easy||||69.7%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium| O(n log n)| O(1) ||49.3%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy||||70.7%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium| O(n^2)| O(n) ||41.1%|
|
||||
|0925|Long Pressed Name|[Go]({{< relref "/ChapterFour/0900~0999/0925.Long-Pressed-Name.md" >}})|Easy| O(n)| O(1)||35.9%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||74.6%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium||||69.1%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy| O(n)| O(1)||71.4%|
|
||||
|0986|Interval List Intersections|[Go]({{< relref "/ChapterFour/0900~0999/0986.Interval-List-Intersections.md" >}})|Medium| O(n)| O(1)||69.1%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.8%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||56.4%|
|
||||
|1089|Duplicate Zeros|[Go]({{< relref "/ChapterFour/1000~1099/1089.Duplicate-Zeros.md" >}})|Easy||||51.4%|
|
||||
|1093|Statistics from a Large Sample|[Go]({{< relref "/ChapterFour/1000~1099/1093.Statistics-from-a-Large-Sample.md" >}})|Medium| O(n)| O(1) ||47.2%|
|
||||
|1332|Remove Palindromic Subsequences|[Go]({{< relref "/ChapterFour/1300~1399/1332.Remove-Palindromic-Subsequences.md" >}})|Easy||||68.8%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.4%|
|
||||
|1658|Minimum Operations to Reduce X to Zero|[Go]({{< relref "/ChapterFour/1600~1699/1658.Minimum-Operations-to-Reduce-X-to-Zero.md" >}})|Medium||||33.3%|
|
||||
|0011|Container With Most Water|[Go]({{< relref "/ChapterFour/0001~0099/0011.Container-With-Most-Water.md" >}})|Medium| O(n)| O(1)||53.2%|
|
||||
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium| O(n^2)| O(n)|❤️|30.0%|
|
||||
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium| O(n^2)| O(1)|❤️|46.9%|
|
||||
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium| O(n^3)| O(n^2)|❤️|36.8%|
|
||||
|0019|Remove Nth Node From End of List|[Go]({{< relref "/ChapterFour/0001~0099/0019.Remove-Nth-Node-From-End-of-List.md" >}})|Medium| O(n)| O(1)||37.3%|
|
||||
|0026|Remove Duplicates from Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0026.Remove-Duplicates-from-Sorted-Array.md" >}})|Easy| O(n)| O(1)||47.8%|
|
||||
|0027|Remove Element|[Go]({{< relref "/ChapterFour/0001~0099/0027.Remove-Element.md" >}})|Easy| O(n)| O(1)||50.5%|
|
||||
|0028|Implement strStr()|[Go]({{< relref "/ChapterFour/0001~0099/0028.Implement-strStr.md" >}})|Easy| O(n)| O(1)||35.7%|
|
||||
|0031|Next Permutation|[Go]({{< relref "/ChapterFour/0001~0099/0031.Next-Permutation.md" >}})|Medium||||34.8%|
|
||||
|0042|Trapping Rain Water|[Go]({{< relref "/ChapterFour/0001~0099/0042.Trapping-Rain-Water.md" >}})|Hard| O(n)| O(1)|❤️|54.6%|
|
||||
|0061|Rotate List|[Go]({{< relref "/ChapterFour/0001~0099/0061.Rotate-List.md" >}})|Medium| O(n)| O(1)||33.2%|
|
||||
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|53.0%|
|
||||
|0080|Remove Duplicates from Sorted Array II|[Go]({{< relref "/ChapterFour/0001~0099/0080.Remove-Duplicates-from-Sorted-Array-II.md" >}})|Medium| O(n)| O(1||47.9%|
|
||||
|0082|Remove Duplicates from Sorted List II|[Go]({{< relref "/ChapterFour/0001~0099/0082.Remove-Duplicates-from-Sorted-List-II.md" >}})|Medium||||41.5%|
|
||||
|0086|Partition List|[Go]({{< relref "/ChapterFour/0001~0099/0086.Partition-List.md" >}})|Medium| O(n)| O(1)|❤️|46.8%|
|
||||
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy| O(n)| O(1)|❤️|42.4%|
|
||||
|0125|Valid Palindrome|[Go]({{< relref "/ChapterFour/0100~0199/0125.Valid-Palindrome.md" >}})|Easy| O(n)| O(1)||40.1%|
|
||||
|0141|Linked List Cycle|[Go]({{< relref "/ChapterFour/0100~0199/0141.Linked-List-Cycle.md" >}})|Easy| O(n)| O(1)|❤️|44.5%|
|
||||
|0142|Linked List Cycle II|[Go]({{< relref "/ChapterFour/0100~0199/0142.Linked-List-Cycle-II.md" >}})|Medium| O(n)| O(1)|❤️|42.0%|
|
||||
|0143|Reorder List|[Go]({{< relref "/ChapterFour/0100~0199/0143.Reorder-List.md" >}})|Medium||||44.4%|
|
||||
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium||||49.2%|
|
||||
|0151|Reverse Words in a String|[Go]({{< relref "/ChapterFour/0100~0199/0151.Reverse-Words-in-a-String.md" >}})|Medium||||27.0%|
|
||||
|0160|Intersection of Two Linked Lists|[Go]({{< relref "/ChapterFour/0100~0199/0160.Intersection-of-Two-Linked-Lists.md" >}})|Easy||||47.8%|
|
||||
|0167|Two Sum II - Input Array Is Sorted|[Go]({{< relref "/ChapterFour/0100~0199/0167.Two-Sum-II-Input-Array-Is-Sorted.md" >}})|Easy| O(n)| O(1)||57.5%|
|
||||
|0189|Rotate Array|[Go]({{< relref "/ChapterFour/0100~0199/0189.Rotate-Array.md" >}})|Medium||||37.3%|
|
||||
|0202|Happy Number|[Go]({{< relref "/ChapterFour/0200~0299/0202.Happy-Number.md" >}})|Easy||||52.3%|
|
||||
|0234|Palindrome Linked List|[Go]({{< relref "/ChapterFour/0200~0299/0234.Palindrome-Linked-List.md" >}})|Easy| O(n)| O(1)||44.8%|
|
||||
|0283|Move Zeroes|[Go]({{< relref "/ChapterFour/0200~0299/0283.Move-Zeroes.md" >}})|Easy| O(n)| O(1)||59.7%|
|
||||
|0287|Find the Duplicate Number|[Go]({{< relref "/ChapterFour/0200~0299/0287.Find-the-Duplicate-Number.md" >}})|Medium| O(n)| O(1)|❤️|58.3%|
|
||||
|0344|Reverse String|[Go]({{< relref "/ChapterFour/0300~0399/0344.Reverse-String.md" >}})|Easy| O(n)| O(1)||72.7%|
|
||||
|0345|Reverse Vowels of a String|[Go]({{< relref "/ChapterFour/0300~0399/0345.Reverse-Vowels-of-a-String.md" >}})|Easy| O(n)| O(1)||46.3%|
|
||||
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||67.6%|
|
||||
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||53.9%|
|
||||
|0392|Is Subsequence|[Go]({{< relref "/ChapterFour/0300~0399/0392.Is-Subsequence.md" >}})|Easy||||50.0%|
|
||||
|0457|Circular Array Loop|[Go]({{< relref "/ChapterFour/0400~0499/0457.Circular-Array-Loop.md" >}})|Medium||||31.1%|
|
||||
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.6%|
|
||||
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium| O(n)| O(1) ||50.7%|
|
||||
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium| O(n)| O(n)||37.1%|
|
||||
|0541|Reverse String II|[Go]({{< relref "/ChapterFour/0500~0599/0541.Reverse-String-II.md" >}})|Easy||||49.9%|
|
||||
|0557|Reverse Words in a String III|[Go]({{< relref "/ChapterFour/0500~0599/0557.Reverse-Words-in-a-String-III.md" >}})|Easy||||76.0%|
|
||||
|0567|Permutation in String|[Go]({{< relref "/ChapterFour/0500~0599/0567.Permutation-in-String.md" >}})|Medium| O(n)| O(1)|❤️|44.3%|
|
||||
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.7%|
|
||||
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.3%|
|
||||
|0633|Sum of Square Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0633.Sum-of-Square-Numbers.md" >}})|Medium||||34.7%|
|
||||
|0653|Two Sum IV - Input is a BST|[Go]({{< relref "/ChapterFour/0600~0699/0653.Two-Sum-IV-Input-is-a-BST.md" >}})|Easy||||58.1%|
|
||||
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.8%|
|
||||
|0696|Count Binary Substrings|[Go]({{< relref "/ChapterFour/0600~0699/0696.Count-Binary-Substrings.md" >}})|Easy||||63.2%|
|
||||
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.9%|
|
||||
|0763|Partition Labels|[Go]({{< relref "/ChapterFour/0700~0799/0763.Partition-Labels.md" >}})|Medium| O(n)| O(1)|❤️|78.4%|
|
||||
|0795|Number of Subarrays with Bounded Maximum|[Go]({{< relref "/ChapterFour/0700~0799/0795.Number-of-Subarrays-with-Bounded-Maximum.md" >}})|Medium||||52.2%|
|
||||
|0821|Shortest Distance to a Character|[Go]({{< relref "/ChapterFour/0800~0899/0821.Shortest-Distance-to-a-Character.md" >}})|Easy||||70.7%|
|
||||
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium| O(n log n)| O(n)||40.5%|
|
||||
|0832|Flipping an Image|[Go]({{< relref "/ChapterFour/0800~0899/0832.Flipping-an-Image.md" >}})|Easy||||79.1%|
|
||||
|0838|Push Dominoes|[Go]({{< relref "/ChapterFour/0800~0899/0838.Push-Dominoes.md" >}})|Medium| O(n)| O(n)||52.0%|
|
||||
|0844|Backspace String Compare|[Go]({{< relref "/ChapterFour/0800~0899/0844.Backspace-String-Compare.md" >}})|Easy| O(n)| O(n) ||47.5%|
|
||||
|0845|Longest Mountain in Array|[Go]({{< relref "/ChapterFour/0800~0899/0845.Longest-Mountain-in-Array.md" >}})|Medium| O(n)| O(1) ||39.3%|
|
||||
|0876|Middle of the Linked List|[Go]({{< relref "/ChapterFour/0800~0899/0876.Middle-of-the-Linked-List.md" >}})|Easy||||70.8%|
|
||||
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium| O(n log n)| O(1) ||49.6%|
|
||||
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy||||70.6%|
|
||||
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium| O(n^2)| O(n) ||41.3%|
|
||||
|0925|Long Pressed Name|[Go]({{< relref "/ChapterFour/0900~0999/0925.Long-Pressed-Name.md" >}})|Easy| O(n)| O(1)||35.4%|
|
||||
|0942|DI String Match|[Go]({{< relref "/ChapterFour/0900~0999/0942.DI-String-Match.md" >}})|Easy||||75.1%|
|
||||
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium||||69.3%|
|
||||
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy| O(n)| O(1)||71.5%|
|
||||
|0986|Interval List Intersections|[Go]({{< relref "/ChapterFour/0900~0999/0986.Interval-List-Intersections.md" >}})|Medium| O(n)| O(1)||70.4%|
|
||||
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.9%|
|
||||
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.2%|
|
||||
|1089|Duplicate Zeros|[Go]({{< relref "/ChapterFour/1000~1099/1089.Duplicate-Zeros.md" >}})|Easy||||51.2%|
|
||||
|1093|Statistics from a Large Sample|[Go]({{< relref "/ChapterFour/1000~1099/1093.Statistics-from-a-Large-Sample.md" >}})|Medium| O(n)| O(1) ||46.4%|
|
||||
|1332|Remove Palindromic Subsequences|[Go]({{< relref "/ChapterFour/1300~1399/1332.Remove-Palindromic-Subsequences.md" >}})|Easy||||69.1%|
|
||||
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.2%|
|
||||
|1679|Max Number of K-Sum Pairs|[Go]({{< relref "/ChapterFour/1600~1699/1679.Max-Number-of-K-Sum-Pairs.md" >}})|Medium||||53.5%|
|
||||
|1721|Swapping Nodes in a Linked List|[Go]({{< relref "/ChapterFour/1700~1799/1721.Swapping-Nodes-in-a-Linked-List.md" >}})|Medium||||66.3%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||78.8%|
|
||||
|1721|Swapping Nodes in a Linked List|[Go]({{< relref "/ChapterFour/1700~1799/1721.Swapping-Nodes-in-a-Linked-List.md" >}})|Medium||||66.0%|
|
||||
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||80.1%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
@ -19,32 +19,32 @@ weight: 16
|
||||
|
||||
| No. | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|
||||
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium| O(n)| O(n)|❤️|47.6%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium| O(m\*n)| O(m\*n)||30.9%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(m\*n)| O(m\*n)||50.9%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium| O(n)| O(n)||55.4%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium| O(n^2)| O(n)||61.7%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium| O(n)| O(n)||60.1%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard| O(n)| O(n)||33.3%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||67.1%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium| O(n)| O(n)|❤️|53.4%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard| O(n)| O(n)|❤️|56.0%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard| O(n^2)| O(n)|❤️|57.8%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.3%|
|
||||
|0803|Bricks Falling When Hit|[Go]({{< relref "/ChapterFour/0800~0899/0803.Bricks-Falling-When-Hit.md" >}})|Hard| O(n^2)| O(n)|❤️|32.4%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard| O(n^2)| O(n)||43.1%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard| O(m\*n)| O(n)||41.9%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard| O(m\*n)| O(n)|❤️|41.6%|
|
||||
|0947|Most Stones Removed with Same Row or Column|[Go]({{< relref "/ChapterFour/0900~0999/0947.Most-Stones-Removed-with-Same-Row-or-Column.md" >}})|Medium| O(n)| O(n)||56.0%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard| O(n)| O(n)|❤️|36.6%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium| O(n^2)| O(n^2)|❤️|68.0%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium| O(n)| O(n)||48.0%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.2%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||49.8%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.4%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||55.8%|
|
||||
|1579|Remove Max Number of Edges to Keep Graph Fully Traversable|[Go]({{< relref "/ChapterFour/1500~1599/1579.Remove-Max-Number-of-Edges-to-Keep-Graph-Fully-Traversable.md" >}})|Hard||||47.7%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||50.4%|
|
||||
|0128|Longest Consecutive Sequence|[Go]({{< relref "/ChapterFour/0100~0199/0128.Longest-Consecutive-Sequence.md" >}})|Medium| O(n)| O(n)|❤️|48.1%|
|
||||
|0130|Surrounded Regions|[Go]({{< relref "/ChapterFour/0100~0199/0130.Surrounded-Regions.md" >}})|Medium| O(m\*n)| O(m\*n)||32.7%|
|
||||
|0200|Number of Islands|[Go]({{< relref "/ChapterFour/0200~0299/0200.Number-of-Islands.md" >}})|Medium| O(m\*n)| O(m\*n)||52.2%|
|
||||
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium| O(n)| O(n)||56.1%|
|
||||
|0547|Number of Provinces|[Go]({{< relref "/ChapterFour/0500~0599/0547.Number-of-Provinces.md" >}})|Medium| O(n^2)| O(n)||62.3%|
|
||||
|0684|Redundant Connection|[Go]({{< relref "/ChapterFour/0600~0699/0684.Redundant-Connection.md" >}})|Medium| O(n)| O(n)||60.6%|
|
||||
|0685|Redundant Connection II|[Go]({{< relref "/ChapterFour/0600~0699/0685.Redundant-Connection-II.md" >}})|Hard| O(n)| O(n)||33.4%|
|
||||
|0695|Max Area of Island|[Go]({{< relref "/ChapterFour/0600~0699/0695.Max-Area-of-Island.md" >}})|Medium||||68.2%|
|
||||
|0721|Accounts Merge|[Go]({{< relref "/ChapterFour/0700~0799/0721.Accounts-Merge.md" >}})|Medium| O(n)| O(n)|❤️|54.4%|
|
||||
|0765|Couples Holding Hands|[Go]({{< relref "/ChapterFour/0700~0799/0765.Couples-Holding-Hands.md" >}})|Hard| O(n)| O(n)|❤️|56.2%|
|
||||
|0778|Swim in Rising Water|[Go]({{< relref "/ChapterFour/0700~0799/0778.Swim-in-Rising-Water.md" >}})|Hard| O(n^2)| O(n)|❤️|58.1%|
|
||||
|0785|Is Graph Bipartite?|[Go]({{< relref "/ChapterFour/0700~0799/0785.Is-Graph-Bipartite.md" >}})|Medium||||49.6%|
|
||||
|0803|Bricks Falling When Hit|[Go]({{< relref "/ChapterFour/0800~0899/0803.Bricks-Falling-When-Hit.md" >}})|Hard| O(n^2)| O(n)|❤️|33.3%|
|
||||
|0839|Similar String Groups|[Go]({{< relref "/ChapterFour/0800~0899/0839.Similar-String-Groups.md" >}})|Hard| O(n^2)| O(n)||44.2%|
|
||||
|0924|Minimize Malware Spread|[Go]({{< relref "/ChapterFour/0900~0999/0924.Minimize-Malware-Spread.md" >}})|Hard| O(m\*n)| O(n)||41.8%|
|
||||
|0928|Minimize Malware Spread II|[Go]({{< relref "/ChapterFour/0900~0999/0928.Minimize-Malware-Spread-II.md" >}})|Hard| O(m\*n)| O(n)|❤️|41.8%|
|
||||
|0947|Most Stones Removed with Same Row or Column|[Go]({{< relref "/ChapterFour/0900~0999/0947.Most-Stones-Removed-with-Same-Row-or-Column.md" >}})|Medium| O(n)| O(n)||56.2%|
|
||||
|0952|Largest Component Size by Common Factor|[Go]({{< relref "/ChapterFour/0900~0999/0952.Largest-Component-Size-by-Common-Factor.md" >}})|Hard| O(n)| O(n)|❤️|40.4%|
|
||||
|0959|Regions Cut By Slashes|[Go]({{< relref "/ChapterFour/0900~0999/0959.Regions-Cut-By-Slashes.md" >}})|Medium| O(n^2)| O(n^2)|❤️|68.3%|
|
||||
|0990|Satisfiability of Equality Equations|[Go]({{< relref "/ChapterFour/0900~0999/0990.Satisfiability-of-Equality-Equations.md" >}})|Medium| O(n)| O(n)||49.1%|
|
||||
|1020|Number of Enclaves|[Go]({{< relref "/ChapterFour/1000~1099/1020.Number-of-Enclaves.md" >}})|Medium||||60.9%|
|
||||
|1202|Smallest String With Swaps|[Go]({{< relref "/ChapterFour/1200~1299/1202.Smallest-String-With-Swaps.md" >}})|Medium||||51.3%|
|
||||
|1254|Number of Closed Islands|[Go]({{< relref "/ChapterFour/1200~1299/1254.Number-of-Closed-Islands.md" >}})|Medium||||62.7%|
|
||||
|1319|Number of Operations to Make Network Connected|[Go]({{< relref "/ChapterFour/1300~1399/1319.Number-of-Operations-to-Make-Network-Connected.md" >}})|Medium||||56.5%|
|
||||
|1579|Remove Max Number of Edges to Keep Graph Fully Traversable|[Go]({{< relref "/ChapterFour/1500~1599/1579.Remove-Max-Number-of-Edges-to-Keep-Graph-Fully-Traversable.md" >}})|Hard||||49.1%|
|
||||
|1631|Path With Minimum Effort|[Go]({{< relref "/ChapterFour/1600~1699/1631.Path-With-Minimum-Effort.md" >}})|Medium||||51.2%|
|
||||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user