algorithm/hello-algo
1
0
Fork 0
mirror of https://github.com/krahets/hello-algo.git synced 2025-07-24 18:55:36 +08:00
Code Issues Packages Projects Releases Wiki Activity

1. Add build script for Java.

Browse Source 
2. Add height limitation for code blocks in extra.css.
3. Fix "节点" to "结点".
This commit is contained in:
krahets
2023-02-07 04:43:52 +08:00
parent b14568151c
commit ecbf2d1560
54 changed files with 457 additions and 1633 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
docs/chapter_computational_complexity/space_time_tradeoff.md
View File

@ -33,19 +33,7 @@ comments: true
=== "Java"
```java title="leetcode_two_sum.java"
class SolutionBruteForce {
public int[] twoSum(int[] nums, int target) {
int size = nums.length;
// 两层循环，时间复杂度 O(n^2)
for (int i = 0; i < size - 1; i++) {
for (int j = i + 1; j < size; j++) {
if (nums[i] + nums[j] == target)
return new int[] { i, j };
}
}
return new int[0];
}
}
[class]{SolutionBruteForce}-[func]{}
```
=== "C++"
@ -199,21 +187,7 @@ comments: true
=== "Java"
```java title="leetcode_two_sum.java"
class SolutionHashMap {
public int[] twoSum(int[] nums, int target) {
int size = nums.length;
// 辅助哈希表，空间复杂度 O(n)
Map<Integer, Integer> dic = new HashMap<>();
// 单层循环，时间复杂度 O(n)
for (int i = 0; i < size; i++) {
if (dic.containsKey(target - nums[i])) {
return new int[] { dic.get(target - nums[i]), i };
}
dic.put(nums[i], i);
}
return new int[0];
}
}
[class]{SolutionHashMap}-[func]{}
```
=== "C++"