leetcode-master/README.md

# Leetcode精选：   

* [leetcode面试高频题目题解](https://github.com/youngyangyang04/leetcode-master)
* [究竟什么是时间复杂度，怎么求时间复杂度，看这一篇就够了](https://mp.weixin.qq.com/s/ma615my-adxMNKmzcdYVlg)
* [一文带你彻底理解程序为什么会超时](https://mp.weixin.qq.com/s/ZLHsvkxppD8QJMBj3njOiw)
* [一场面试，带你彻底掌握递归算法的时间复杂度](https://mp.weixin.qq.com/s/GOYVzUVrfLUjOrDg21YOAw)
* [算法分析中的空间复杂度，你真的会了么？](https://mp.weixin.qq.com/s/uU6cn0SYRUbIf5tU2QkcOQ)
* [二分法其实很简单，为什么老是写不对！！](https://mp.weixin.qq.com/s/mZ87E2vdvqhbv55uYpdrAQ)
* [程序员算法面试中，必须掌握的数组理论知识](https://mp.weixin.qq.com/s/hgSxlgs12IQPUvG0BQukBg)
* [这五道数组相关的面试题，你一定要会！](https://mp.weixin.qq.com/s/tMgABUtR1Ydv330NogS3Jg)
* [关于哈希表，你该了解这些！](https://mp.weixin.qq.com/s/UnuQIRZSn_i2G4VhTWK5CQ)
* 精选链表相关的面试题
* 精选哈希表相关的面试题
* 精选字符串相关的面试题
* 精选栈与队列相关的面试题
* 精选二叉树相关的面试题
* 精选递归与回溯面试题


# LeetCode 最强题解:

|题目 | 类型 | 难度 | 解题方法 |
|---|---| ---| --- |
|[0000.两数之和](https://github.com/youngyangyang04/leetcode/blob/master/problems/0000.两数之和.md) | 数组|简单|**暴力** **哈希**| 
|[0015.三数之和](https://github.com/youngyangyang04/leetcode/blob/master/problems/0015.三数之和.md) | 数组 |中等|**双指针** **哈希**| 
|[0018.四数之和](https://github.com/youngyangyang04/leetcode/blob/master/problems/0018.四数之和) | 数组 |中等|**双指针**| 
|[0020.有效的括号](https://github.com/youngyangyang04/leetcode/blob/master/problems/0020.有效的括号) | 栈 |简单|**栈**| 
|[0021.合并两个有序链表](https://github.com/youngyangyang04/leetcode/blob/master/problems/0021.合并两个有序链表.md)  |链表 |简单|**模拟** |
|[0026.删除排序数组中的重复项](https://github.com/youngyangyang04/leetcode/blob/master/problems/0026.删除排序数组中的重复项.md)  |数组 |简单|**暴力** **快慢指针** |
|[0027.移除元素](https://github.com/youngyangyang04/leetcode/blob/master/problems/0027.移除元素.md)  |数组 |简单| **暴力** **快慢指针/双指针**|
|[0028.实现strStr()](https://github.com/youngyangyang04/leetcode/blob/master/problems/0028.实现strStr().md)  |字符串 |简单| **KMP** |
|[0035.搜索插入位置](https://github.com/youngyangyang04/leetcode/blob/master/problems/0035.搜索插入位置.md) |数组 |简单| **暴力** **二分**|
|[0053.最大子序和](https://github.com/youngyangyang04/leetcode/blob/master/problems/0053.最大子序和.md) |数组 |简单|**暴力** **贪心** 动态规划 分治|
|[0059.螺旋矩阵II](https://github.com/youngyangyang04/leetcode/blob/master/problems/0059.螺旋矩阵II.md) |数组 |中等|**模拟**|
|[0083.删除排序链表中的重复元素](https://github.com/youngyangyang04/leetcode/blob/master/problems/0083.删除排序链表中的重复元素.md) |链表 |简单|**模拟**|
|[0142.环形链表II](https://github.com/youngyangyang04/leetcode/blob/master/problems/0142.环形链表II.md) |链表 |中等|**快慢指针/双指针**|
|[0151.翻转字符串里的单词](https://github.com/youngyangyang04/leetcode/blob/master/problems/0151.翻转字符串里的单词.md) |字符串 |中等|**模拟/双指针**|
|[0155.最小栈](https://github.com/youngyangyang04/leetcode/blob/master/problems/0155.最小栈.md) |栈 |简单|**栈**|
|[0202.快乐数](https://github.com/youngyangyang04/leetcode/blob/master/problems/0202.快乐数.md) |哈希表 |简单|**哈希**|
|[0203.移除链表元素](https://github.com/youngyangyang04/leetcode/blob/master/problems/0203.移除链表元素.md) |链表 |简单|**模拟** **虚拟头结点**|
|[0205.同构字符串](https://github.com/youngyangyang04/leetcode/blob/master/problems/0205.同构字符串.md) |哈希表 |简单| **哈希**|
|[0206.翻转链表](https://github.com/youngyangyang04/leetcode/blob/master/problems/0206.翻转链表.md) |链表 |简单| **模拟** **递归**|
|[0209.长度最小的子数组](https://github.com/youngyangyang04/leetcode/blob/master/problems/0209.长度最小的子数组.md) |数组 |中等| **暴力** **滑动窗口**|
|[0219.存在重复元素II](https://github.com/youngyangyang04/leetcode/blob/master/problems/0219.存在重复元素II.md) | 哈希表 |简单| **哈希** |
|[0225.用队列实现栈](https://github.com/youngyangyang04/leetcode/blob/master/problems/0225.用队列实现栈.md) | 队列 |简单| **队列** |
|[0232.用栈实现队列](https://github.com/youngyangyang04/leetcode/blob/master/problems/0232.用栈实现队列.md) | 栈 |简单| **栈** |
|[0237.删除链表中的节点](https://github.com/youngyangyang04/leetcode/blob/master/problems/0237.删除链表中的节点.md) |链表 |简单| **原链表移除** **添加虚拟节点** 递归|
|[0239.滑动窗口最大值](https://github.com/youngyangyang04/leetcode/blob/master/problems/0239.滑动窗口最大值.md) |滑动窗口/队列 |困难| **单调队列**|
|[0242.有效的字母异位词](https://github.com/youngyangyang04/leetcode/blob/master/problems/0242.有效的字母异位词.md) |哈希表 |简单| **哈希**|
|[0344.反转字符串](https://github.com/youngyangyang04/leetcode/blob/master/problems/0344.反转字符串.md) |字符串 |简单| **双指针**|
|[0347.前K个高频元素](https://github.com/youngyangyang04/leetcode/blob/master/problems/0347.前K个高频元素.md) |哈希/堆/优先级队列 |中等| **哈希/优先级队列**|
|[0349.两个数组的交集](https://github.com/youngyangyang04/leetcode/blob/master/problems/0349.两个数组的交集.md) |哈希表 |简单|**哈希**|
|[0350.两个数组的交集II](https://github.com/youngyangyang04/leetcode/blob/master/problems/0350.两个数组的交集II.md) |哈希表 |简单|**哈希**|
|[0383.赎金信](https://github.com/youngyangyang04/leetcode/blob/master/problems/0383.赎金信.md) |数组 |简单|**暴力** **字典计数** **哈希**|
|[0434.字符串中的单词数](https://github.com/youngyangyang04/leetcode/blob/master/problems/0434.字符串中的单词数.md) |字符串 |简单|**模拟**|
|[0454.四数相加II](https://github.com/youngyangyang04/leetcode/blob/master/problems/0454.四数相加II.md) |哈希表 |中等| **哈希**|
|[0575.分糖果.md](https://github.com/youngyangyang04/leetcode/blob/master/problems/0575.分糖果.md) |哈希表 |简单|**哈希**|
|[0705.设计哈希集合](https://github.com/youngyangyang04/leetcode/blob/master/problems/0705.设计哈希集合.md) |哈希表 |简单|**模拟**|
|[0707.设计链表](https://github.com/youngyangyang04/leetcode/blob/master/problems/0707.设计链表.md) |链表 |中等|**模拟**|
|[1047.删除字符串中的所有相邻重复项](https://github.com/youngyangyang04/leetcode/blob/master/problems/1047.删除字符串中的所有相邻重复项.md) |栈 |简单|**栈**|
|[剑指Offer05.替换空格](https://github.com/youngyangyang04/leetcode/blob/master/problems/剑指Offer05.替换空格.md) |字符串 |简单|**双指针**|

持续更新中....

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