Rank 17667
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| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 15 | 三数之和 | 23.90% | Medium | 排序，暴力 |
| 16 | 最接近的三数之和 | 41.60% | Medium | 和15题一样思路 |
| 26 | 删除排序数组中的重复项 | 46.10% | Easy | 快慢指针 |
| 27 | 移除元素 | 55.90% | Easy | |
| 35 | 搜索插入位置 | 44.30% | Easy | |
| 66 | 加一 | 40.80% | Easy | |
| 414 | 第三大的数 | 32.60% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 28 | 实现 strStr() | 38.80% | Easy | |
| 58 | 最后一个单词的长度 | 31.30% | Easy | |
| 67 | Add Binary | 39.70% | Easy | |
| 165 | Compare Version Numbers | 23.90% | Medium | |
| 227 | Basic Calculator II | 33.80% | Medium | |
| 344 | 反转字符串 | 67.60% | Easy | |
| 383 | 赎金信 | 49.80% | Easy | |
| 791 | Custom Sort String | 62.40% | Medium | |
| 859 | Buddy Strings | 27.70% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 2 | Add Two Numbers | 31.40% | Medium | |
| 19 | Remove Nth Node From End of List | 34.40% | Medium | |
| 21 | Merge Two Sorted Lists | 47.90% | Easy | |
| 23 | Merge k Sorted Lists | 35.10% | Hard | |
| 24 | Swap Nodes in Pairs | 45.40% | Medium | |
| 25 | Reverse Nodes in k-Group | 37.00% | Hard | |
| 61 | 旋转链表 | 38.90% | Medium | |
| 82 | Remove Duplicates from Sorted List II | 33.40% | Medium | |
| 83 | Remove Duplicates from Sorted List | 42.90% | Easy | |
| 86 | Partition List | 37.70% | Medium | |
| 92 | 反转链表 II | 45.90% | Medium | |
| 141 | Linked List Cycle | 37.40% | Easy | |
| 142 | Linked List Cycle II | 32.60% | Medium | |
| 143 | 重排链表 | 51.80% | Medium | |
| 160 | 相交链表 | 46.50% | Easy | |
| 203 | 移除链表元素 | 42.00% | Easy | |
| 206* | 反转链表 | 63.40% | Easy | 递归 |
| 234 | 回文链表 | 38.20% | Easy | |
| 237 | 删除链表中的节点 | 77.30% | Easy | |
| 328 | 奇偶链表 | 58.90% | Medium | |
| 445 | Add Two Numbers II | 50.50% | Medium | |
| 725 | 分隔链表 | 50.60% | Medium | |
| 876 | 链表的中间结点 | 62.30% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 56 | 合并区间 | 38.20% | Medium | |
| 57 | 插入区间 | 35.40% | Hard | |
| 75 | Sort Colors | 34.90% | Medium | |
| 147 | 对链表进行插入排序 | 59.30% | Medium | |
| 148* | 排序链表 | 61.30% | Medium | |
| 164 | 最大间距 | 50.90% | Hard | |
| 242 | Valid Anagram | 52.90% | Easy | |
| 274 | H指数 | 35.60% | Medium | |
| 324 | 摆动排序 II | 33.50% | Medium | |
| 349 | 两个数组的交集 | 64.60% | Easy | |
| 350 | 两个数组的交集 II | 43.10% | Easy | |
| 524 | 通过删除字母匹配到字典里最长单词 | 44.60% | Medium | |
| 767* | 重构字符串 | 35.20% | Medium | 使用优先队列，priority_queue<pair<int,char>> |
| 922 | 按奇偶排序数组 II | 64.60% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 1 | 两数之和 | 46.30% | Easy | |
| 3* | 无重复字符的最长子串 | 30.50% | Medium | |
| 18 | 四数之和 | 35.30% | Medium | 用的暴力 |
| 30 | 串联所有单词的子串 | 27.80% | Hard | |
| 49 | 字母异位词分组 | 58.30% | Medium | |
| 136 | 只出现一次的数字 | 62.50% | Easy | |
| 202 | 快乐数 | 54.90% | Easy | |
| 204 | 计数质数 | 29.20% | Easy | |
| 217 | 存在重复元素 | 49.40% | Easy | |
| 219 | 存在重复元素II | 35.50% | Easy | |
| 290 | 单词规律 | 40.10% | Easy | |
| 387 | 字符串中的第一个唯一字符 | 40.20% | Easy | |
| 389 | 找不同 | 57.90% | Easy | |
| 409 | 最长回文串 | 49.90% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 94* | 二叉树的中序遍历 | 67.10% | Medium | |
| 100 | 相同的树 | 54.00% | Easy | |
| 101 | 对称二叉树 | 47.80% | Easy | |
| 104 | 二叉树的最大深度 | 70.30% | Easy | |
| 108 | 将有序数组转换为二叉搜索树 | 65.60% | Easy | 二分法 |
| 110 | 平衡二叉树 | 49.00% | Easy | |
| 112 | 路径总和 | 47.60% | Easy | |
| 226 | 翻转二叉树 | 71.40% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 208 | 实现 Trie (前缀树) | 60.60% | Medium | |
| 211* | 添加与搜索单词 - 数据结构设计 | 39.20% | Medium | DFS |
| 648 | 单词替换 | 52.20% | Medium | |
| 676 | 实现一个魔法字典 | 52.60% | Medium | 没用树，用map |
| 677 | 键值映射 | 59.00% | Medium |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 20 | 有效的括号 | 39.20% | Easy | |
| 71 | 简化路径 | 36.90% | Medium | |
| 144 | 二叉树的前序遍历 | 61.10% | Medium | |
| 145* | 二叉树的后序遍历 | 67.20% | Hard | |
| 150 | 逆波兰表达式求值 | 45.30% | Medium | |
| 155 | 最小栈 | 49.50% | Easy | |
| 224 | 基本计算器 | 34.10% | Hard | |
| 225 | 用队列实现栈 | 59.70% | Easy | |
| 232 | 用栈实现队列 | 60.70% | Easy | |
| 394 | 字符串解码 | 35.60% | Medium | |
| 402 | 移掉K位数字 | 35.60% | Medium | 单调栈 |
| 496 | 下一个更大元素 I | 60.40% | Easy | |
| 735 | 行星碰撞 | 32.70% | Medium | |
| 844 | 比较含退格的字符串 | 47.90% | Easy | |
| 921 | 使括号有效的最少添加 | 66.00% | Medium | |
| 1019 | 链表中的下一个更大节点 | 42.60% | Medium |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 622* | 设计循环队列 | 38.80% | Medium | |
| 933 | 最近的请求次数 | 67.80% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 55 | 跳跃游戏* | 36.00% | Medium | |
| 122 | 买卖股票的最佳时机 II | 55.30% | Easy | |
| 134 | 加油站* | 48.80% | Medium | |
| 392 | 判断子序列 | 48.30% | Easy | |
| 435 | 无重叠区间 | 43.40% | Medium | |
| 455 | 分发饼干 | 51.60% | Easy | |
| 763 | 划分字母区间 | 66.80% | Medium | |
| 860 | 柠檬水找零 | 51.70% | Easy |
| # | Title | Solution | Difficulty | Key |
|---|---|---|---|---|
| 29 | 两数相除 | 18.60% | Medium | 位运算 |
| 34 | 在排序数组中查找元素的第一个和最后一个位置 | 37.60% | Medium | |
| 50* | Pow(x, n) | 33.20% | Medium | 递归 |
| 153 | 寻找旋转排序数组中的最小值 | 49.60% | Medium |