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Python for algorithm.
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提交通過就直接commit，想到最優解會慢慢更新，上面不一定是最優解，歡迎大家PR。
| # | Title | Solution | Tag | Note |
|---|---|---|---|---|
| 938 | Range Sum of BST | dfs, devide and conquer | tree | |
| 687 | 最长同值路径 | Recursive | tree | |
| 617 | Merge Two Binary Trees | Recursive | tree | |
| 590 | n叉树的后序遍历 | Recursive | tree | |
| 572 | Subtree of Another Tree | Recursive | tree | |
| 543 | 二叉树的直径 | Recursive, divide and conquer | tree | |
| 226 | 翻转二叉树 | Recursive | tree | |
| 202 | happyNumber | array | array | |
| 155 | minStack | stack | stack | |
| 111 | 二叉树的最小深度 | Recursive, dfs-todo | tree | |
| 110 | 平衡二叉树 | Recursive | tree | |
| 104 | 二叉树的最大深度 | Recursive | tree | |
| 100 | 相同的树 | Recursive | tree | |
| 94 | 二叉树的中序遍历 | Recursive | tree | |
| 70 | 爬楼梯 | dp | dp | |
| 53 | 最大子序和 | dp | dp | |
| 26 | 删除排序数组中的重复项 | swap | array | |
| 1 | 两数之和 | hash | array |
| # | Title | Solution | Tag | Note |
|---|---|---|---|---|
| 1111 | 有效括号的嵌套深度 | stack | stack | |
| 445 | 两数相加ii | stack | stack | |
| 355 | 设计推特 | design | design | |
| 289 | 生命游戲 | convolution | array | |
| 200 | 岛屿数量 | dfs bfs | 搜索 | |
| 199 | 二叉树的右视图 | dfs | tree | |
| 151 | 翻转字符串里的单词 | spilit | string | |
| 130 | 被围绕的区域 | dfs | 搜索 | |
| 98 | 验证二叉搜索树 | devide and conquer, 也可中序遍歷是否從小到大排序recursive | tree | |
| 96 | 不同的二叉搜索树 | DP | tree | |
| 90 | 子集-ii | backtracking | dfs | |
| 78 | 子集 | backtracking | dfs | |
| 56 | 合併區間 | sort | array | |
| 55 | 跳跃游戏 | greedy | array | |
| 50 | pow | recursive | divide_and_conquer | |
| 47 | 全排列-ii | backtracking | dfs | |
| 46 | 全排列 | backtracking | dfs | |
| 39 | 组合总和 | dfs | dfs | |
| 33 | 搜索旋转排序数组 | binary_search | binary_search | |
| 22 | 括号生成 | dfs | backtraking | |
| 11 | 盛最多水的容器 | two_pointer | two_pointer | |
| 8 | atoi | array | string | |
| 2 | 两数相加 | list | list |
| # | Title | Solution | Tag | Note |
|---|---|---|---|---|
| 887 | 鸡蛋掉落 | dp1, dp + binarySearch, dp2-todo | dp | |
| 99 | 恢复二叉搜索树 | O(n)traversal, refine traversal 解法, Morris算法 | tree | |
| 72 | 编辑距离 | dp | dp | |
| 45 | 跳跃游戏II | dfs | dfs | |
| 42 | 接雨水 | dp | array | |
| 23 | 合并k个排序链表 | priority_queue | priority_queue |
| # | Title | Solution | Tag | Note |
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