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CodeTop 面试算法题按照频率排序，链接用 leetcode.cn 前缀拼接 slug name 得到的，可能有误，以序号为准~
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| id | title | url | freq | |
|---|---|---|---|---|
| 3 | 无重复字符的最长子串 | https://leetcode.cn/problems/longest-substring-without-repeating-characters/ | 566 | |
| 206 | 反转链表 | https://leetcode.cn/problems/reverse-linked-list/ | 540 | |
| 146 | LRU缓存机制 | https://leetcode.cn/problems/lru-cache/ | 455 | |
| 215 | 数组中的第K个最大元素 | https://leetcode.cn/problems/kth-largest-element-in-an-array/ | 388 | |
| 25 | K 个一组翻转链表 | https://leetcode.cn/problems/reverse-nodes-in-k-group/ | 298 | |
| 15 | 三数之和 | https://leetcode.cn/problems/3sum/ | 276 | |
| 53 | 最大子序和 | https://leetcode.cn/problems/maximum-subarray/ | 243 | |
| 补充题4 | 手撕快速排序 | https://leetcode.cn/problems/sort-an-array/ | 242 | |
| 21 | 合并两个有序链表 | https://leetcode.cn/problems/merge-two-sorted-lists/ | 224 | |
| 1 | 两数之和 | https://leetcode.cn/problems/two-sum/ | 218 | |
| 102 | 二叉树的层序遍历 | https://leetcode.cn/problems/binary-tree-level-order-traversal/ | 205 | |
| 5 | 最长回文子串 | https://leetcode.cn/problems/longest-palindromic-substring/ | 199 | |
| 33 | 搜索旋转排序数组 | https://leetcode.cn/problems/search-in-rotated-sorted-array/ | 198 | |
| 141 | 环形链表 | https://leetcode.cn/problems/linked-list-cycle/ | 195 | |
| 20 | 有效的括号 | https://leetcode.cn/problems/valid-parentheses/ | 195 | |
| 121 | 买卖股票的最佳时机 | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock/ | 194 | |
| 200 | 岛屿数量 | https://leetcode.cn/problems/number-of-islands/ | 191 | |
| 88 | 合并两个有序数组 | https://leetcode.cn/problems/merge-sorted-array/ | 190 | |
| 103 | 二叉树的锯齿形层次遍历 | https://leetcode.cn/problems/binary-tree-zigzag-level-order-traversal/ | 188 | |
| 236 | 二叉树的最近公共祖先 | https://leetcode.cn/problems/lowest-common-ancestor-of-a-binary-tree/ | 187 | |
| 46 | 全排列 | https://leetcode.cn/problems/permutations/ | 185 | |
| 160 | 相交链表 | https://leetcode.cn/problems/intersection-of-two-linked-lists/ | 172 | |
| 54 | 螺旋矩阵 | https://leetcode.cn/problems/spiral-matrix/ | 172 | |
| 23 | 合并K个排序链表 | https://leetcode.cn/problems/merge-k-sorted-lists/ | 159 | |
| 92 | 反转链表 II | https://leetcode.cn/problems/reverse-linked-list-ii/ | 158 | |
| 415 | 字符串相加 | https://leetcode.cn/problems/add-strings/ | 151 | |
| 142 | 环形链表 II | https://leetcode.cn/problems/linked-list-cycle-ii/ | 146 | |
| 300 | 最长上升子序列 | https://leetcode.cn/problems/longest-increasing-subsequence/ | 144 | |
| 42 | 接雨水 | https://leetcode.cn/problems/trapping-rain-water/ | 140 | |
| 143 | 重排链表 | https://leetcode.cn/problems/reorder-list/ | 127 | |
| 124 | 二叉树中的最大路径和 | https://leetcode.cn/problems/binary-tree-maximum-path-sum/ | 124 | |
| 94 | 二叉树的中序遍历 | https://leetcode.cn/problems/binary-tree-inorder-traversal/ | 118 | |
| 19 | 删除链表的倒数第N个节点 | https://leetcode.cn/problems/remove-nth-node-from-end-of-list/ | 116 | |
| 72 | 编辑距离 | https://leetcode.cn/problems/edit-distance/ | 115 | |
| 232 | 用栈实现队列 | https://leetcode.cn/problems/implement-queue-using-stacks/ | 115 | |
| 704 | 二分查找 | https://leetcode.cn/problems/binary-search/ | 115 | |
| 4 | 寻找两个正序数组的中位数 | https://leetcode.cn/problems/median-of-two-sorted-arrays/ | 114 | |
| 199 | 二叉树的右视图 | https://leetcode.cn/problems/binary-tree-right-side-view/ | 111 | |
| 70 | 爬楼梯 | https://leetcode.cn/problems/climbing-stairs/ | 107 | |
| 56 | 合并区间 | https://leetcode.cn/problems/merge-intervals/ | 107 | |
| 148 | 排序链表 | https://leetcode.cn/problems/sort-list/ | 106 | |
| 82 | 删除排序链表中的重复元素 II | https://leetcode.cn/problems/remove-duplicates-from-sorted-list-ii/ | 105 | |
| 31 | 下一个排列 | https://leetcode.cn/problems/next-permutation/ | 105 | |
| 1143 | 最长公共子序列 | https://leetcode.cn/problems/longest-common-subsequence/ | 104 | |
| 2 | 两数相加 | https://leetcode.cn/problems/add-two-numbers/ | 102 | |
| 69 | x 的平方根 | https://leetcode.cn/problems/sqrtx/ | 101 | |
| 22 | 括号生成 | https://leetcode.cn/problems/generate-parentheses/ | 100 | |
| 93 | 复原IP地址 | https://leetcode.cn/problems/restore-ip-addresses/ | 98 | |
| 8 | 字符串转换整数 (atoi) | https://leetcode.cn/problems/string-to-integer-atoi/ | 98 | |
| 41 | 缺失的第一个正数 | https://leetcode.cn/problems/first-missing-positive/ | 93 | |
| 239 | 滑动窗口最大值 | https://leetcode.cn/problems/sliding-window-maximum/ | 93 | |
| 剑指 Offer 22 | 链表中倒数第k个节点 | https://leetcode.cn/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof/ | 91 | |
| 76 | 最小覆盖子串 | https://leetcode.cn/problems/minimum-window-substring/ | 81 | |
| 165 | 比较版本号 | https://leetcode.cn/problems/compare-version-numbers/ | 80 | |
| 105 | 从前序与中序遍历序列构造二叉树 | https://leetcode.cn/problems/construct-binary-tree-from-preorder-and-inorder-traversal/ | 80 | |
| 151 | 翻转字符串里的单词 | https://leetcode.cn/problems/reverse-words-in-a-string/ | 79 | |
| 322 | 零钱兑换 | https://leetcode.cn/problems/coin-change/ | 79 | |
| 32 | 最长有效括号 | https://leetcode.cn/problems/longest-valid-parentheses/ | 77 | |
| 43 | 字符串相乘 | https://leetcode.cn/problems/multiply-strings/ | 77 | |
| 144 | 二叉树的前序遍历 | https://leetcode.cn/problems/binary-tree-preorder-traversal/ | 77 | |
| 155 | 最小栈 | https://leetcode.cn/problems/min-stack/ | 76 | |
| 78 | 子集 | https://leetcode.cn/problems/subsets/ | 76 | |
| 104 | 二叉树的最大深度 | https://leetcode.cn/problems/maximum-depth-of-binary-tree/ | 75 | |
| 110 | 平衡二叉树 | https://leetcode.cn/problems/balanced-binary-tree/ | 75 | |
| 129 | 求根到叶子节点数字之和 | https://leetcode.cn/problems/sum-root-to-leaf-numbers/ | 74 | |
| 101 | 对称二叉树 | https://leetcode.cn/problems/symmetric-tree/ | 74 | |
| 543 | 二叉树的直径 | https://leetcode.cn/problems/diameter-of-binary-tree/ | 70 | |
| 470 | 用 Rand7() 实现 Rand10() | https://leetcode.cn/problems/implement-rand10-using-rand7/ | 68 | |
| 113 | 路径总和 II | https://leetcode.cn/problems/path-sum-ii/ | 68 | |
| 98 | 验证二叉搜索树 | https://leetcode.cn/problems/validate-binary-search-tree/ | 68 | |
| 64 | 最小路径和 | https://leetcode.cn/problems/minimum-path-sum/ | 68 | |
| 48 | 旋转图像 | https://leetcode.cn/problems/rotate-image/ | 65 | |
| 112 | 路径总和 | https://leetcode.cn/problems/path-sum/ | 65 | |
| 39 | 组合总和 | https://leetcode.cn/problems/combination-sum/ | 64 | |
| 234 | 回文链表 | https://leetcode.cn/problems/palindrome-linked-list/ | 63 | |
| 169 | 多数元素 | https://leetcode.cn/problems/majority-element/ | 61 | |
| 394 | 字符串解码 | https://leetcode.cn/problems/decode-string/ | 59 | |
| 240 | 搜索二维矩阵 II | https://leetcode.cn/problems/search-a-2d-matrix-ii/ | 58 | |
| 34 | 在排序数组中查找元素的第一个和最后一个位置 | https://leetcode.cn/problems/find-first-and-last-position-of-element-in-sorted-array/ | 58 | |
| 221 | 最大正方形 | https://leetcode.cn/problems/maximal-square/ | 58 | |
| 718 | 最长重复子数组 | https://leetcode.cn/problems/maximum-length-of-repeated-subarray/ | 58 | |
| 226 | 翻转二叉树 | https://leetcode.cn/problems/invert-binary-tree/ | 57 | |
| 14 | 最长公共前缀 | https://leetcode.cn/problems/longest-common-prefix/ | 56 | |
| 162 | 寻找峰值 | https://leetcode.cn/problems/find-peak-element/ | 54 | |
| 62 | 不同路径 | https://leetcode.cn/problems/unique-paths/ | 53 | |
| 227 | 基本计算器 II | https://leetcode.cn/problems/basic-calculator-ii/ | 53 | |
| 128 | 最长连续序列 | https://leetcode.cn/problems/longest-consecutive-sequence/ | 53 | |
| 83 | 删除排序链表中的重复元素 | https://leetcode.cn/problems/remove-duplicates-from-sorted-list/ | 52 | |
| 695 | 岛屿的最大面积 | https://leetcode.cn/problems/max-area-of-island/ | 52 | |
| 662 | 二叉树最大宽度 | https://leetcode.cn/problems/maximum-width-of-binary-tree/ | 50 | |
| 122 | 买卖股票的最佳时机 II | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock-ii/ | 50 | |
| 198 | 打家劫舍 | https://leetcode.cn/problems/house-robber/ | 50 | |
| 补充题6 | 手撕堆排序 | https://leetcode.cn/problems/sort-an-array/ | 50 | |
| 24 | 两两交换链表中的节点 | https://leetcode.cn/problems/swap-nodes-in-pairs/ | 49 | |
| 152 | 乘积最大子数组 | https://leetcode.cn/problems/maximum-product-subarray/ | 49 | |
| 153 | 寻找旋转排序数组中的最小值 | https://leetcode.cn/problems/find-minimum-in-rotated-sorted-array/ | 48 | |
| 179 | 最大数 | https://leetcode.cn/problems/largest-number/ | 48 | |
| 139 | 单词拆分 | https://leetcode.cn/problems/word-break/ | 47 | |
| 283 | 移动零 | https://leetcode.cn/problems/move-zeroes/ | 47 | |
| 138 | 复制带随机指针的链表 | https://leetcode.cn/problems/copy-list-with-random-pointer/ | 47 | |
| 468 | 验证IP地址 | https://leetcode.cn/problems/validate-ip-address/ | 46 | |
| 560 | 和为K的子数组 | https://leetcode.cn/problems/subarray-sum-equals-k/ | 46 | |
| 297 | 二叉树的序列化与反序列化 | https://leetcode.cn/problems/serialize-and-deserialize-binary-tree/ | 46 | |
| 209 | 长度最小的子数组 | https://leetcode.cn/problems/minimum-size-subarray-sum/ | 45 | |
| 136 | 只出现一次的数字 | https://leetcode.cn/problems/single-number/ | 44 | |
| 739 | 每日温度 | https://leetcode.cn/problems/daily-temperatures/ | 43 | |
| 224 | 基本计算器 | https://leetcode.cn/problems/basic-calculator/ | 42 | |
| 剑指 Offer 09 | 用两个栈实现队列 | https://leetcode.cn/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof/ | 42 | |
| 补充题5 | 手撕归并排序 | https://leetcode.cn/problems/sort-an-array/ | 41 | |
| 207 | 课程表 | https://leetcode.cn/problems/course-schedule/ | 41 | |
| 498 | 对角线遍历 | https://leetcode.cn/problems/diagonal-traverse/ | 41 | |
| 460 | LFU缓存 | https://leetcode.cn/problems/lfu-cache/ | 40 | |
| 402 | 移掉K位数字 | https://leetcode.cn/problems/remove-k-digits/ | 40 | |
| 剑指 Offer 36 | 二叉搜索树与双向链表 | https://leetcode.cn/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof/ | 40 | |
| 958 | 二叉树的完全性检验 | https://leetcode.cn/problems/check-completeness-of-a-binary-tree/ | 39 | |
| 61 | 旋转链表 | https://leetcode.cn/problems/rotate-list/ | 38 | |
| 补充题23 | 检测循环依赖 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/pCRscwKqQdYYN7M1Sia7xA/ | 38 | |
| 补充题1 | 排序奇升偶降链表 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/0WVa2wIAeG0nYnVndZiEXQ/ | 38 | |
| 剑指 Offer 54 | 二叉搜索树的第k大节点 | https://leetcode.cn/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof/ | 37 | |
| 11 | 盛最多水的容器 | https://leetcode.cn/problems/container-with-most-water/ | 36 | |
| 剑指 Offer 10- II | 青蛙跳台阶问题 | https://leetcode.cn/problems/qing-wa-tiao-tai-jie-wen-ti-lcof/ | 36 | |
| 79 | 单词搜索 | https://leetcode.cn/problems/word-search/ | 36 | |
| 59 | 螺旋矩阵 II | https://leetcode.cn/problems/spiral-matrix-ii/ | 35 | |
| 47 | 全排列 II | https://leetcode.cn/problems/permutations-ii/ | 35 | |
| 55 | 跳跃游戏 | https://leetcode.cn/problems/jump-game/ | 35 | |
| 40 | 组合总和 II | https://leetcode.cn/problems/combination-sum-ii/ | 35 | |
| 26 | 删除排序数组中的重复项 | https://leetcode.cn/problems/remove-duplicates-from-sorted-array/ | 34 | |
| 剑指 Offer 42 | 连续子数组的最大和 | https://leetcode.cn/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof/ | 34 | |
| 50 | Pow(x, n) | https://leetcode.cn/problems/powx-n/ | 34 | |
| 补充题2 | 圆环回原点问题 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/NZPaFsFrTybO3K3s7p7EVg/ | 34 | |
| 518 | 零钱兑换 II | https://leetcode.cn/problems/coin-change-2/ | 34 | |
| 145 | 二叉树的后序遍历 | https://leetcode.cn/problems/binary-tree-postorder-traversal/ | 34 | |
| 剑指 Offer 51 | 数组中的逆序对 | https://leetcode.cn/problems/shu-zu-zhong-de-ni-xu-dui-lcof/ | 34 | |
| 剑指 Offer 40 | 最小的k个数 | https://leetcode.cn/problems/zui-xiao-de-kge-shu-lcof/ | 33 | |
| 7 | 整数反转 | https://leetcode.cn/problems/reverse-integer/ | 33 | |
| 123 | 买卖股票的最佳时机 III | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock-iii/ | 33 | |
| 74 | 搜索二维矩阵 | https://leetcode.cn/problems/search-a-2d-matrix/ | 33 | |
| 剑指 Offer 10- I | 斐波那契数列 | https://leetcode.cn/problems/fei-bo-na-qi-shu-lie-lcof/ | 33 | |
| 440 | 字典序的第K小数字 | https://leetcode.cn/problems/k-th-smallest-in-lexicographical-order/ | 31 | |
| 450 | 删除二叉搜索树中的节点 | https://leetcode.cn/problems/delete-node-in-a-bst/ | 31 | |
| 75 | 颜色分类 | https://leetcode.cn/problems/sort-colors/ | 30 | |
| 剑指 Offer 21 | 调整数组顺序使奇数位于偶数前面 | https://leetcode.cn/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof/ | 30 | |
| 230 | 二叉搜索树中第K小的元素 | https://leetcode.cn/problems/kth-smallest-element-in-a-bst/ | 30 | |
| 剑指 Offer 04 | 二维数组中的查找 | https://leetcode.cn/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof/ | 29 | |
| 225 | 用队列实现栈 | https://leetcode.cn/problems/implement-stack-using-queues/ | 29 | |
| 135 | 分发糖果 | https://leetcode.cn/problems/candy/ | 29 | |
| 剑指 Offer 62 | 圆圈中最后剩下的数字 | https://leetcode.cn/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof/ | 29 | |
| 91 | 解码方法 | https://leetcode.cn/problems/decode-ways/ | 28 | |
| 329 | 矩阵中的最长递增路径 | https://leetcode.cn/problems/longest-increasing-path-in-a-matrix/ | 28 | |
| 328 | 奇偶链表 | https://leetcode.cn/problems/odd-even-linked-list/ | 27 | |
| 208 | 实现 Trie (前缀树) | https://leetcode.cn/problems/implement-trie-prefix-tree/ | 26 | |
| 9 | 回文数 | https://leetcode.cn/problems/palindrome-number/ | 26 | |
| 剑指 Offer 26 | 树的子结构 | https://leetcode.cn/problems/shu-de-zi-jie-gou-lcof/ | 26 | |
| 189 | 轮转数组 | https://leetcode.cn/problems/rotate-array/ | 26 | |
| 45 | 跳跃游戏 II | https://leetcode.cn/problems/jump-game-ii/ | 26 | |
| 572 | 另一个树的子树 | https://leetcode.cn/problems/subtree-of-another-tree/ | 26 | |
| 384 | 打乱数组 | https://leetcode.cn/problems/shuffle-an-array/ | 26 | |
| 125 | 验证回文串 | https://leetcode.cn/problems/valid-palindrome/ | 26 | |
| 114 | 二叉树展开为链表 | https://leetcode.cn/problems/flatten-binary-tree-to-linked-list/ | 25 | |
| 295 | 数据流的中位数 | https://leetcode.cn/problems/find-median-from-data-stream/ | 25 | |
| 445 | 两数相加 II | https://leetcode.cn/problems/add-two-numbers-ii/ | 25 | |
| 剑指 Offer 27 | 二叉树的镜像 | https://leetcode.cn/problems/er-cha-shu-de-jing-xiang-lcof/ | 25 | |
| 16 | 最接近的三数之和 | https://leetcode.cn/problems/3sum-closest/ | 24 | |
| 10 | 正则表达式匹配 | https://leetcode.cn/problems/regular-expression-matching/ | 24 | |
| 287 | 寻找重复数 | https://leetcode.cn/problems/find-the-duplicate-number/ | 24 | |
| 106 | 从中序与后序遍历序列构造二叉树 | https://leetcode.cn/problems/construct-binary-tree-from-inorder-and-postorder-traversal/ | 23 | |
| 剑指 Offer 29 | 顺时针打印矩阵 | https://leetcode.cn/problems/shun-shi-zhen-da-yin-ju-zhen-lcof/ | 23 | |
| 96 | 不同的二叉搜索树 | https://leetcode.cn/problems/unique-binary-search-trees/ | 23 | |
| 213 | 打家劫舍 II | https://leetcode.cn/problems/house-robber-ii/ | 23 | |
| 400 | 第N个数字 | https://leetcode.cn/problems/nth-digit/ | 22 | |
| 349 | 两个数组的交集 | https://leetcode.cn/problems/intersection-of-two-arrays/ | 22 | |
| 120 | 三角形最小路径和 | https://leetcode.cn/problems/triangle/ | 22 | |
| 887 | 鸡蛋掉落 | https://leetcode.cn/problems/super-egg-drop/ | 21 | |
| 168 | Excel表列名称 | https://leetcode.cn/problems/excel-sheet-column-title/ | 20 | |
| 剑指 Offer 61 | 扑克牌中的顺子 | https://leetcode.cn/problems/bu-ke-pai-zhong-de-shun-zi-lcof/ | 20 | |
| 面试题 02.05 | 链表求和 | https://leetcode.cn/problems/sum-lists-lcci/ | 20 | |
| 678 | 有效的括号字符串 | https://leetcode.cn/problems/valid-parenthesis-string/ | 20 | |
| 剑指 Offer 52 | 两个链表的第一个公共节点 | https://leetcode.cn/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof/ | 20 | |
| 347 | 前 K 个高频元素 | https://leetcode.cn/problems/top-k-frequent-elements/ | 20 | |
| 补充题9 | 36进制加法 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/XcKQwnwCh5nZsz-DLHJwzQ/ | 20 | |
| 679 | 24 点游戏 | https://leetcode.cn/problems/24-game/ | 19 | |
| 134 | 加油站 | https://leetcode.cn/problems/gas-station/ | 19 | |
| 1004 | 最大连续1的个数 III | https://leetcode.cn/problems/max-consecutive-ones-iii/ | 19 | |
| 611 | 有效三角形的个数 | https://leetcode.cn/problems/valid-triangle-number/ | 19 | |
| 剑指 Offer 39 | 数组中出现次数超过一半的数字 | https://leetcode.cn/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof/ | 19 | |
| 673 | 最长递增子序列的个数 | https://leetcode.cn/problems/number-of-longest-increasing-subsequence/ | 19 | |
| 71 | 简化路径 | https://leetcode.cn/problems/simplify-path/ | 19 | |
| 442 | 数组中重复的数据 | https://leetcode.cn/problems/find-all-duplicates-in-an-array/ | 19 | |
| 509 | 斐波那契数 | https://leetcode.cn/problems/fibonacci-number/ | 19 | |
| 1047 | 删除字符串中的所有相邻重复项 | https://leetcode.cn/problems/remove-all-adjacent-duplicates-in-string/ | 19 | |
| 补充题14 | 阿拉伯数字转中文数字 | https://leetcode.cn/problems/None/ | 18 | |
| 剑指 Offer 34 | 二叉树中和为某一值的路径 | https://leetcode.cn/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof/ | 18 | |
| 剑指 Offer 53 - I | 在排序数组中查找数字 I | https://leetcode.cn/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof/ | 18 | |
| 86 | 分隔链表 | https://leetcode.cn/problems/partition-list/ | 18 | |
| 210 | 课程表 II | https://leetcode.cn/problems/course-schedule-ii/ | 17 | |
| 242 | 有效的字母异位词 | https://leetcode.cn/problems/valid-anagram/ | 17 | |
| 459 | 重复的子字符串 | https://leetcode.cn/problems/repeated-substring-pattern/ | 17 | |
| 111 | 二叉树的最小深度 | https://leetcode.cn/problems/minimum-depth-of-binary-tree/ | 17 | |
| 556 | 下一个更大元素 III | https://leetcode.cn/problems/next-greater-element-iii/ | 17 | |
| 44 | 通配符匹配 | https://leetcode.cn/problems/wildcard-matching/ | 17 | |
| 279 | 完全平方数 | https://leetcode.cn/problems/perfect-squares/ | 17 | |
| 63 | 不同路径 II | https://leetcode.cn/problems/unique-paths-ii/ | 17 | |
| 37 | 解数独 | https://leetcode.cn/problems/sudoku-solver/ | 17 | |
| 344 | 反转字符串 | https://leetcode.cn/problems/reverse-string/ | 17 | |
| 557 | 反转字符串中的单词 III | https://leetcode.cn/problems/reverse-words-in-a-string-iii/ | 17 | |
| 670 | 最大交换 | https://leetcode.cn/problems/maximum-swap/ | 17 | |
| 剑指 Offer 11 | 旋转数组的最小数字 | https://leetcode.cn/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof/ | 17 | |
| 443 | 压缩字符串 | https://leetcode.cn/problems/string-compression/ | 17 | |
| 191 | 位1的个数 | https://leetcode.cn/problems/number-of-1-bits/ | 17 | |
| 剑指 Offer 45 | 把数组排成最小的数 | https://leetcode.cn/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof/ | 17 | |
| 264 | 丑数 II | https://leetcode.cn/problems/ugly-number-ii/ | 16 | |
| 494 | 目标和 | https://leetcode.cn/problems/target-sum/ | 16 | |
| 115 | 不同的子序列 | https://leetcode.cn/problems/distinct-subsequences/ | 16 | |
| 剑指 Offer 48 | 最长不含重复字符的子字符串 | https://leetcode.cn/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof/ | 16 | |
| 18 | 四数之和 | https://leetcode.cn/problems/4sum/ | 16 | |
| 260 | 只出现一次的数字 III | https://leetcode.cn/problems/single-number-iii/ | 16 | |
| 97 | 交错字符串 | https://leetcode.cn/problems/interleaving-string/ | 16 | |
| 面试题 17.24 | 最大子矩阵 | https://leetcode.cn/problems/max-submatrix-lcci/ | 16 | |
| 85 | 最大矩形 | https://leetcode.cn/problems/maximal-rectangle/ | 16 | |
| 503 | 下一个更大元素 II | https://leetcode.cn/problems/next-greater-element-ii/ | 16 | |
| 100 | 相同的树 | https://leetcode.cn/problems/same-tree/ | 16 | |
| 253 | 会议室 II | https://leetcode.cn/problems/meeting-rooms-ii/ | 15 | |
| 84 | 柱状图中最大的矩形 | https://leetcode.cn/problems/largest-rectangle-in-histogram/ | 15 | |
| 167 | 两数之和 II - 输入有序数组 | https://leetcode.cn/problems/two-sum-ii-input-array-is-sorted/ | 15 | |
| 剑指 Offer 33 | 二叉搜索树的后序遍历序列 | https://leetcode.cn/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof/ | 15 | |
| 51 | N皇后 | https://leetcode.cn/problems/n-queens/ | 15 | |
| 268 | 缺失数字 | https://leetcode.cn/problems/missing-number/ | 15 | |
| 516 | 最长回文子序列 | https://leetcode.cn/problems/longest-palindromic-subsequence/ | 15 | |
| 863 | 二叉树中所有距离为 K 的结点 | https://leetcode.cn/problems/all-nodes-distance-k-in-binary-tree/ | 14 | |
| 剑指 Offer 03 | 数组中重复的数字 | https://leetcode.cn/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof/ | 14 | |
| 395 | 至少有K个重复字符的最长子串 | https://leetcode.cn/problems/longest-substring-with-at-least-k-repeating-characters/ | 14 | |
| 554 | 砖墙 | https://leetcode.cn/problems/brick-wall/ | 14 | |
| 154 | 寻找旋转排序数组中的最小值 II | https://leetcode.cn/problems/find-minimum-in-rotated-sorted-array-ii/ | 14 | |
| 343 | 整数拆分 | https://leetcode.cn/problems/integer-break/ | 14 | |
| 剑指 Offer 32 - III | 从上到下打印二叉树 III | https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof/ | 14 | |
| 862 | 和至少为 K 的最短子数组 | https://leetcode.cn/problems/shortest-subarray-with-sum-at-least-k/ | 14 | |
| 426 | 将二叉搜索树转化为排序的双向链表 | https://leetcode.cn/problems/convert-binary-search-tree-to-sorted-doubly-linked-list/ | 13 | |
| 188 | 买卖股票的最佳时机 IV | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock-iv/ | 13 | |
| 剑指 Offer 35 | 复杂链表的复制 | https://leetcode.cn/problems/fu-za-lian-biao-de-fu-zhi-lcof/ | 13 | |
| 108 | 将有序数组转换为二叉搜索树 | https://leetcode.cn/problems/convert-sorted-array-to-binary-search-tree/ | 13 | |
| 622 | 设计循环队列 | https://leetcode.cn/problems/design-circular-queue/ | 13 | |
| 77 | 组合 | https://leetcode.cn/problems/combinations/ | 13 | |
| 876 | 链表的中间结点 | https://leetcode.cn/problems/middle-of-the-linked-list/ | 13 | |
| 257 | 二叉树的所有路径 | https://leetcode.cn/problems/binary-tree-paths/ | 13 | |
| 763 | 划分字母区间 | https://leetcode.cn/problems/partition-labels/ | 13 | |
| 17 | 电话号码的字母组合 | https://leetcode.cn/problems/letter-combinations-of-a-phone-number/ | 13 | |
| 6 | Z 字形变换 | https://leetcode.cn/problems/zigzag-conversion/ | 13 | |
| 977 | 有序数组的平方 | https://leetcode.cn/problems/squares-of-a-sorted-array/ | 13 | |
| 410 | 分割数组的最大值 | https://leetcode.cn/problems/split-array-largest-sum/ | 13 | |
| 剑指 Offer 24 | 反转链表 | https://leetcode.cn/problems/fan-zhuan-lian-biao-lcof/ | 13 | |
| 222 | 完全二叉树的节点个数 | https://leetcode.cn/problems/count-complete-tree-nodes/ | 13 | |
| 补充题22 | IP地址与整数的转换 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/UWCuEtNS2kuAuDY-eIbghg/ | 13 | |
| 1095 | 山脉数组中查找目标值 | https://leetcode.cn/problems/find-in-mountain-array/ | 13 | |
| 204 | 计数质数 | https://leetcode.cn/problems/count-primes/ | 12 | |
| 528 | 按权重随机选择 | https://leetcode.cn/problems/random-pick-with-weight/ | 12 | |
| 面试题 10.03 | 搜索旋转数组 | https://leetcode.cn/problems/search-rotate-array-lcci/ | 12 | |
| 补充题21 | 字符串相减 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/RtAoA1hdf0h1PaVxRj_fzA/ | 12 | |
| 316 | 去除重复字母 | https://leetcode.cn/problems/remove-duplicate-letters/ | 12 | |
| 674 | 最长连续递增序列 | https://leetcode.cn/problems/longest-continuous-increasing-subsequence/ | 12 | |
| 380 | 常数时间插入、删除和获取随机元素 | https://leetcode.cn/problems/insert-delete-getrandom-o1/ | 12 | |
| 617 | 合并二叉树 | https://leetcode.cn/problems/merge-two-binary-trees/ | 12 | |
| 剑指 Offer 07 | 重建二叉树 | https://leetcode.cn/problems/zhong-jian-er-cha-shu-lcof/ | 12 | |
| 647 | 回文子串 | https://leetcode.cn/problems/palindromic-substrings/ | 12 | |
| 12 | 整数转罗马数字 | https://leetcode.cn/problems/integer-to-roman/ | 12 | |
| 706 | 设计哈希映射 | https://leetcode.cn/problems/design-hashmap/ | 12 | |
| 567 | 字符串的排列 | https://leetcode.cn/problems/permutation-in-string/ | 12 | |
| 337 | 打家劫舍 III | https://leetcode.cn/problems/house-robber-iii/ | 12 | |
| 剑指 Offer 38 | 字符串的排列 | https://leetcode.cn/problems/zi-fu-chuan-de-pai-lie-lcof/ | 12 | |
| 剑指 Offer 46 | 把数字翻译成字符串 | https://leetcode.cn/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof/ | 12 | |
| 面试题 08.12 | 八皇后 | https://leetcode.cn/problems/eight-queens-lcci/ | 12 | |
| 130 | 被围绕的区域 | https://leetcode.cn/problems/surrounded-regions/ | 12 | |
| 171 | Excel表列序号 | https://leetcode.cn/problems/excel-sheet-column-number/ | 12 | |
| 525 | 连续数组 | https://leetcode.cn/problems/contiguous-array/ | 12 | |
| 680 | 验证回文字符串 Ⅱ | https://leetcode.cn/problems/valid-palindrome-ii/ | 11 | |
| 315 | 计算右侧小于当前元素的个数 | https://leetcode.cn/problems/count-of-smaller-numbers-after-self/ | 11 | |
| 354 | 俄罗斯套娃信封问题 | https://leetcode.cn/problems/russian-doll-envelopes/ | 11 | |
| 407 | 接雨水 II | https://leetcode.cn/problems/trapping-rain-water-ii/ | 11 | |
| 1312 | 让字符串成为回文串的最少插入次数 | https://leetcode.cn/problems/minimum-insertion-steps-to-make-a-string-palindrome/ | 11 | |
| 547 | 省份数量（原朋友圈） | https://leetcode.cn/problems/number-of-provinces/ | 11 | |
| 416 | 分割等和子集 | https://leetcode.cn/problems/partition-equal-subset-sum/ | 11 | |
| 378 | 有序矩阵中第K小的元素 | https://leetcode.cn/problems/kth-smallest-element-in-a-sorted-matrix/ | 11 | |
| 剑指 Offer 31 | 栈的压入、弹出序列 | https://leetcode.cn/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof/ | 11 | |
| 107 | 二叉树的层次遍历 II | https://leetcode.cn/problems/binary-tree-level-order-traversal-ii/ | 11 | |
| 166 | 分数到小数 | https://leetcode.cn/problems/fraction-to-recurring-decimal/ | 11 | |
| 150 | 逆波兰表达式求值 | https://leetcode.cn/problems/evaluate-reverse-polish-notation/ | 10 | |
| 301 | 删除无效的括号 | https://leetcode.cn/problems/remove-invalid-parentheses/ | 10 | |
| 523 | 连续的子数组和 | https://leetcode.cn/problems/continuous-subarray-sum/ | 10 | |
| 99 | 恢复二叉搜索树 | https://leetcode.cn/problems/recover-binary-search-tree/ | 10 | |
| 974 | 和可被 K 整除的子数组 | https://leetcode.cn/problems/subarray-sums-divisible-by-k/ | 10 | |
| 692 | 前K个高频单词 | https://leetcode.cn/problems/top-k-frequent-words/ | 10 | |
| 1044 | 最长重复子串 | https://leetcode.cn/problems/longest-duplicate-substring/ | 10 | |
| 386 | 字典序排数 | https://leetcode.cn/problems/lexicographical-numbers/ | 10 | |
| 437 | 路径总和 III | https://leetcode.cn/problems/path-sum-iii/ | 10 | |
| 28 | 实现 strStr() | https://leetcode.cn/problems/implement-strstr/ | 10 | |
| 172 | 阶乘后的零 | https://leetcode.cn/problems/factorial-trailing-zeroes/ | 10 | |
| 340 | 至多包含 K 个不同字符的最长子串 | https://leetcode.cn/problems/longest-substring-with-at-most-k-distinct-characters/ | 10 | |
| 73 | 矩阵置零 | https://leetcode.cn/problems/set-matrix-zeroes/ | 10 | |
| 405 | 数字转换为十六进制数 | https://leetcode.cn/problems/convert-a-number-to-hexadecimal/ | 10 | |
| 补充题8 | 计算数组的小和 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/rMsbcUf9ZPhvfRoyZGW6HA/ | 10 | |
| 540 | 有序数组中的单一元素 | https://leetcode.cn/problems/single-element-in-a-sorted-array/ | 9 | |
| 剑指 Offer 14- I | 剪绳子 | https://leetcode.cn/problems/jian-sheng-zi-lcof/ | 9 | |
| 435 | 无重叠区间 | https://leetcode.cn/problems/non-overlapping-intervals/ | 9 | |
| 438 | 找到字符串中所有字母异位词 | https://leetcode.cn/problems/find-all-anagrams-in-a-string/ | 9 | |
| 149 | 直线上最多的点数 | https://leetcode.cn/problems/max-points-on-a-line/ | 9 | |
| 剑指 Offer 50 | 第一个只出现一次的字符 | https://leetcode.cn/problems/di-yi-ge-zhi-chu-xian-yi-ci-de-zi-fu-lcof/ | 9 | |
| 429 | N叉树的层序遍历 | https://leetcode.cn/problems/n-ary-tree-level-order-traversal/ | 9 | |
| 137 | 只出现一次的数字 II | https://leetcode.cn/problems/single-number-ii/ | 9 | |
| 60 | 第k个排列 | https://leetcode.cn/problems/permutation-sequence/ | 9 | |
| 628 | 三个数的最大乘积 | https://leetcode.cn/problems/maximum-product-of-three-numbers/ | 9 | |
| 面试题 08.06 | 汉诺塔问题 | https://leetcode.cn/problems/hanota-lcci/ | 9 | |
| 109 | 有序链表转换二叉搜索树 | https://leetcode.cn/problems/convert-sorted-list-to-binary-search-tree/ | 9 | |
| 131 | 分割回文串 | https://leetcode.cn/problems/palindrome-partitioning/ | 9 | |
| 752 | 打开转盘锁 | https://leetcode.cn/problems/open-the-lock/ | 9 | |
| 698 | 划分为k个相等的子集 | https://leetcode.cn/problems/partition-to-k-equal-sum-subsets/ | 9 | |
| 252 | 会议室 | https://leetcode.cn/problems/meeting-rooms/ | 9 | |
| 剑指 Offer 57 - II | 和为s的连续正数序列 | https://leetcode.cn/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof/ | 9 | |
| 117 | 填充每个节点的下一个右侧节点指针 II | https://leetcode.cn/problems/populating-next-right-pointers-in-each-node-ii/ | 9 | |
| 36 | 有效的数独 | https://leetcode.cn/problems/valid-sudoku/ | 8 | |
| 173 | 二叉搜索树迭代器 | https://leetcode.cn/problems/binary-search-tree-iterator/ | 8 | |
| 剑指 Offer 43 | 1～n整数中1出现的次数 | https://leetcode.cn/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof/ | 8 | |
| 767 | 重构字符串 | https://leetcode.cn/problems/reorganize-string/ | 8 | |
| 补充题24 | 双栈排序 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/g_AqwsSEUwlRSevnStPkEA/ | 8 | |
| 剑指 Offer 65 | 不用加减乘除做加法 | https://leetcode.cn/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof/ | 8 | |
| 13 | 罗马数字转整数 | https://leetcode.cn/problems/roman-to-integer/ | 8 | |
| 994 | 腐烂的橘子 | https://leetcode.cn/problems/rotting-oranges/ | 8 | |
| 49 | 字母异位词分组 | https://leetcode.cn/problems/group-anagrams/ | 8 | |
| 946 | 验证栈序列 | https://leetcode.cn/problems/validate-stack-sequences/ | 8 | |
| 剑指 Offer 59 - I | 滑动窗口的最大值 | https://leetcode.cn/problems/hua-dong-chuang-kou-de-zui-da-zhi-lcof/ | 8 | |
| 836 | 矩形重叠 | https://leetcode.cn/problems/rectangle-overlap/ | 8 | |
| 202 | 快乐数 | https://leetcode.cn/problems/happy-number/ | 8 | |
| 306 | 累加数 | https://leetcode.cn/problems/additive-number/ | 8 | |
| 875 | 爱吃香蕉的珂珂 | https://leetcode.cn/problems/koko-eating-bananas/ | 8 | |
| 986 | 区间列表的交集 | https://leetcode.cn/problems/interval-list-intersections/ | 8 | |
| 912 | 排序数组 | https://leetcode.cn/problems/sort-an-array/ | 8 | |
| 80 | 删除排序数组中的重复项 II | https://leetcode.cn/problems/remove-duplicates-from-sorted-array-ii/ | 8 | |
| 剑指 Offer 12 | 矩阵中的路径 | https://leetcode.cn/problems/ju-zhen-zhong-de-lu-jing-lcof/ | 8 | |
| 907 | 子数组的最小值之和 | https://leetcode.cn/problems/sum-of-subarray-minimums/ | 8 | |
| 238 | 除自身以外数组的乘积 | https://leetcode.cn/problems/product-of-array-except-self/ | 8 | |
| 772 | 基本计算器 III | https://leetcode.cn/problems/basic-calculator-iii/ | 8 | |
| 127 | 单词接龙 | https://leetcode.cn/problems/word-ladder/ | 8 | |
| 233 | 数字 1 的个数 | https://leetcode.cn/problems/number-of-digit-one/ | 8 | |
| 118 | 杨辉三角 | https://leetcode.cn/problems/pascals-triangle/ | 8 | |
| 701 | 二叉搜索树中的插入操作 | https://leetcode.cn/problems/insert-into-a-binary-search-tree/ | 8 | |
| 530 | 二叉搜索树的最小绝对差 | https://leetcode.cn/problems/minimum-absolute-difference-in-bst/ | 8 | |
| 133 | 克隆图 | https://leetcode.cn/problems/clone-graph/ | 7 | |
| 140 | 单词拆分 II | https://leetcode.cn/problems/word-break-ii/ | 7 | |
| 1109 | 航班预订统计 | https://leetcode.cn/problems/corporate-flight-bookings/ | 7 | |
| 剑指 Offer 41 | 数据流中的中位数 | https://leetcode.cn/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof/ | 7 | |
| 1438 | 绝对差不超过限制的最长连续子数组 | https://leetcode.cn/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit/ | 7 | |
| 454 | 四数相加 II | https://leetcode.cn/problems/4sum-ii/ | 7 | |
| 452 | 用最少数量的箭引爆气球 | https://leetcode.cn/problems/minimum-number-of-arrows-to-burst-balloons/ | 7 | |
| 补充题17 | 两个有序数组第k小的数 | https://leetcode.cn/problems/None/ | 7 | |
| 补充题13 | 中文数字转阿拉伯数字 | https://leetcode.cn/problems/None/ | 7 | |
| 735 | 行星碰撞 | https://leetcode.cn/problems/asteroid-collision/ | 7 | |
| 214 | 最短回文串 | https://leetcode.cn/problems/shortest-palindrome/ | 7 | |
| 716 | 最大栈 | https://leetcode.cn/problems/max-stack/ | 7 | |
| 面试题 16.25 | LRU缓存 | https://leetcode.cn/problems/lru-cache-lcci/ | 7 | |
| 456 | 132模式 | https://leetcode.cn/problems/132-pattern/ | 7 | |
| 381 | O(1) 时间插入、删除和获取随机元素 - 允许重复 | https://leetcode.cn/problems/insert-delete-getrandom-o1-duplicates-allowed/ | 7 | |
| 334 | 递增的三元子序列 | https://leetcode.cn/problems/increasing-triplet-subsequence/ | 7 | |
| 159 | 至多包含两个不同字符的最长子串 | https://leetcode.cn/problems/longest-substring-with-at-most-two-distinct-characters/ | 7 | |
| 273 | 整数转换英文表示 | https://leetcode.cn/problems/integer-to-english-words/ | 7 | |
| 面试题 17.14 | 最小K个数 | https://leetcode.cn/problems/smallest-k-lcci/ | 7 | |
| 补充题12 | 二叉树的下一个节点 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/yewlHvHSilMsrUMFIO8WAA/ | 7 | |
| 889 | 根据前序和后序遍历构造二叉树 | https://leetcode.cn/problems/construct-binary-tree-from-preorder-and-postorder-traversal/ | 7 | |
| 559 | N叉树的最大深度 | https://leetcode.cn/problems/maximum-depth-of-n-ary-tree/ | 7 | |
| 895 | 最大频率栈 | https://leetcode.cn/problems/maximum-frequency-stack/ | 7 | |
| 231 | 2的幂 | https://leetcode.cn/problems/power-of-two/ | 7 | |
| 480 | 滑动窗口中位数 | https://leetcode.cn/problems/sliding-window-median/ | 6 | |
| 30 | 串联所有单词的子串 | https://leetcode.cn/problems/substring-with-concatenation-of-all-words/ | 6 | |
| 面试题 01.06 | 字符串压缩 | https://leetcode.cn/problems/compress-string-lcci/ | 6 | |
| 29 | 两数相除 | https://leetcode.cn/problems/divide-two-integers/ | 6 | |
| 57 | 插入区间 | https://leetcode.cn/problems/insert-interval/ | 6 | |
| 852 | 山脉数组的峰顶索引 | https://leetcode.cn/problems/peak-index-in-a-mountain-array/ | 6 | |
| 1013 | 将数组分成和相等的三个部分 | https://leetcode.cn/problems/partition-array-into-three-parts-with-equal-sum/ | 6 | |
| 剑指 Offer 63 | 股票的最大利润 | https://leetcode.cn/problems/gu-piao-de-zui-da-li-run-lcof/ | 6 | |
| 1556 | 千位分隔数 | https://leetcode.cn/problems/thousand-separator/ | 6 | |
| 658 | 找到 K 个最接近的元素 | https://leetcode.cn/problems/find-k-closest-elements/ | 6 | |
| 409 | 最长回文串 | https://leetcode.cn/problems/longest-palindrome/ | 6 | |
| 1171 | 从链表中删去总和值为零的连续节点 | https://leetcode.cn/problems/remove-zero-sum-consecutive-nodes-from-linked-list/ | 6 | |
| 451 | 根据字符出现频率排序 | https://leetcode.cn/problems/sort-characters-by-frequency/ | 6 | |
| 1233 | 删除子文件夹 | https://leetcode.cn/problems/remove-sub-folders-from-the-filesystem/ | 6 | |
| 1293 | 网格中的最短路径 | https://leetcode.cn/problems/shortest-path-in-a-grid-with-obstacles-elimination/ | 6 | |
| 581 | 最短无序连续子数组 | https://leetcode.cn/problems/shortest-unsorted-continuous-subarray/ | 6 | |
| 486 | 预测赢家 | https://leetcode.cn/problems/predict-the-winner/ | 6 | |
| 392 | 判断子序列 | https://leetcode.cn/problems/is-subsequence/ | 6 | |
| 312 | 戳气球 | https://leetcode.cn/problems/burst-balloons/ | 6 | |
| 补充题20 | 立方根 | https://leetcode.cn/problems/None/ | 6 | |
| 235 | 二叉搜索树的最近公共祖先 | https://leetcode.cn/problems/lowest-common-ancestor-of-a-binary-search-tree/ | 6 | |
| 164 | 最大间距 | https://leetcode.cn/problems/maximum-gap/ | 6 | |
| 703 | 数据流中的第K大元素 | https://leetcode.cn/problems/kth-largest-element-in-a-stream/ | 6 | |
| 67 | 二进制求和 | https://leetcode.cn/problems/add-binary/ | 6 | |
| 421 | 数组中两个数的最大异或值 | https://leetcode.cn/problems/maximum-xor-of-two-numbers-in-an-array/ | 6 | |
| 补充题3 | 求区间最小数乘区间和的最大值 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/UFv7pt_djjZoK_gzUBrRXA/ | 6 | |
| 剑指 Offer 25 | 合并两个排序的链表 | https://leetcode.cn/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof/ | 6 | |
| 补充题7 | 木头切割问题 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/FQma0bdAWbzLMmCKhZRk7w/ | 6 | |
| 350 | 两个数组的交集 II | https://leetcode.cn/problems/intersection-of-two-arrays-ii/ | 5 | |
| 1658 | 将 x 减到 0 的最小操作数 | https://leetcode.cn/problems/minimum-operations-to-reduce-x-to-zero/ | 5 | |
| 剑指 Offer 60 | n个骰子的点数 | https://leetcode.cn/problems/nge-tou-zi-de-dian-shu-lcof/ | 5 | |
| 393 | UTF-8 编码验证 | https://leetcode.cn/problems/utf-8-validation/ | 5 | |
| 119 | 杨辉三角 II | https://leetcode.cn/problems/pascals-triangle-ii/ | 5 | |
| 223 | 矩形面积 | https://leetcode.cn/problems/rectangle-area/ | 5 | |
| 面试题 08.05 | 递归乘法 | https://leetcode.cn/problems/recursive-mulitply-lcci/ | 5 | |
| 726 | 原子的数量 | https://leetcode.cn/problems/number-of-atoms/ | 5 | |
| 面试题 01.07 | 旋转矩阵 | https://leetcode.cn/problems/rotate-matrix-lcci/ | 5 | |
| 915 | 分割数组 | https://leetcode.cn/problems/partition-array-into-disjoint-intervals/ | 5 | |
| 513 | 找树左下角的值 | https://leetcode.cn/problems/find-bottom-left-tree-value/ | 5 | |
| 694 | 不同岛屿的数量 | https://leetcode.cn/problems/number-of-distinct-islands/ | 5 | |
| 785 | 判断二分图 | https://leetcode.cn/problems/is-graph-bipartite/ | 5 | |
| 剑指 Offer 17 | 打印从1到最大的n位数 | https://leetcode.cn/problems/da-yin-cong-1dao-zui-da-de-nwei-shu-lcof/ | 5 | |
| 786 | 第 K 个最小的素数分数 | https://leetcode.cn/problems/k-th-smallest-prime-fraction/ | 5 | |
| 1031 | 两个非重叠子数组的最大和 | https://leetcode.cn/problems/maximum-sum-of-two-non-overlapping-subarrays/ | 5 | |
| 剑指 Offer 15 | 二进制中1的个数 | https://leetcode.cn/problems/er-jin-zhi-zhong-1de-ge-shu-lcof/ | 5 | |
| 89 | 格雷编码 | https://leetcode.cn/problems/gray-code/ | 5 | |
| 剑指 Offer 59 - II | 队列的最大值 | https://leetcode.cn/problems/dui-lie-de-zui-da-zhi-lcof/ | 5 | |
| 781 | 森林中的兔子 | https://leetcode.cn/problems/rabbits-in-forest/ | 5 | |
| 1206 | 设计跳表 | https://leetcode.cn/problems/design-skiplist/ | 5 | |
| 428 | 序列化和反序列化 N 叉树 | https://leetcode.cn/problems/serialize-and-deserialize-n-ary-tree/ | 5 | |
| 722 | 删除注释 | https://leetcode.cn/problems/remove-comments/ | 5 | |
| 剑指 Offer 58 - I | 翻转单词顺序 | https://leetcode.cn/problems/fan-zhuan-dan-ci-shun-xu-lcof/ | 5 | |
| 1493 | 删掉一个元素以后全为 1 的最长子数组 | https://leetcode.cn/problems/longest-subarray-of-1s-after-deleting-one-element/ | 5 | |
| 404 | 左叶子之和 | https://leetcode.cn/problems/sum-of-left-leaves/ | 5 | |
| 449 | 序列化和反序列化二叉搜索树 | https://leetcode.cn/problems/serialize-and-deserialize-bst/ | 5 | |
| 1353 | 最多可以参加的会议数目 | https://leetcode.cn/problems/maximum-number-of-events-that-can-be-attended/ | 5 | |
| 剑指 Offer 19 | 正则表达式匹配 | https://leetcode.cn/problems/zheng-ze-biao-da-shi-pi-pei-lcof/ | 5 | |
| 剑指 Offer 53 - II | 0～n-1中缺失的数字 | https://leetcode.cn/problems/que-shi-de-shu-zi-lcof/ | 5 | |
| 面试题 02.02 | 返回倒数第 k 个节点 | https://leetcode.cn/problems/kth-node-from-end-of-list-lcci/ | 4 | |
| 902 | 最大为 N 的数字组合 | https://leetcode.cn/problems/numbers-at-most-n-given-digit-set/ | 4 | |
| 1280 | 学生们参加各科测试的次数 | https://leetcode.cn/problems/students-and-examinations/ | 4 | |
| 325 | 和等于 k 的最长子数组长度 | https://leetcode.cn/problems/maximum-size-subarray-sum-equals-k/ | 4 | |
| 217 | 存在重复元素 | https://leetcode.cn/problems/contains-duplicate/ | 4 | |
| 68 | 文本左右对齐 | https://leetcode.cn/problems/text-justification/ | 4 | |
| 1235 | 规划兼职工作 | https://leetcode.cn/problems/maximum-profit-in-job-scheduling/ | 4 | |
| 539 | 最小时间差 | https://leetcode.cn/problems/minimum-time-difference/ | 4 | |
| 807 | 保持城市天际线 | https://leetcode.cn/problems/max-increase-to-keep-city-skyline/ | 4 | |
| 687 | 最长同值路径 | https://leetcode.cn/problems/longest-univalue-path/ | 4 | |
| 373 | 查找和最小的K对数字 | https://leetcode.cn/problems/find-k-pairs-with-smallest-sums/ | 4 | |
| 132 | 分割回文串 II | https://leetcode.cn/problems/palindrome-partitioning-ii/ | 4 | |
| 237 | 删除链表中的节点 | https://leetcode.cn/problems/delete-node-in-a-linked-list/ | 4 | |
| 90 | 子集 II | https://leetcode.cn/problems/subsets-ii/ | 4 | |
| 241 | 为运算表达式设计优先级 | https://leetcode.cn/problems/different-ways-to-add-parentheses/ | 4 | |
| 面试题 16.16 | 部分排序 | https://leetcode.cn/problems/sub-sort-lcci/ | 4 | |
| 968 | 监控二叉树 | https://leetcode.cn/problems/binary-tree-cameras/ | 4 | |
| 922 | 按奇偶排序数组 II | https://leetcode.cn/problems/sort-array-by-parity-ii/ | 4 | |
| 35 | 搜索插入位置 | https://leetcode.cn/problems/search-insert-position/ | 4 | |
| 473 | 火柴拼正方形 | https://leetcode.cn/problems/matchsticks-to-square/ | 4 | |
| 582 | 杀死进程 | https://leetcode.cn/problems/kill-process/ | 4 | |
| 1424 | 对角线遍历 II | https://leetcode.cn/problems/diagonal-traverse-ii/ | 4 | |
| 187 | 重复的DNA序列 | https://leetcode.cn/problems/repeated-dna-sequences/ | 4 | |
| 387 | 字符串中的第一个唯一字符 | https://leetcode.cn/problems/first-unique-character-in-a-string/ | 4 | |
| 365 | 水壶问题 | https://leetcode.cn/problems/water-and-jug-problem/ | 4 | |
| 补充题11 | 翻转URL字符串里的单词 | https://leetcode.cn/problems/None/ | 4 | |
| 796 | 旋转字符串 | https://leetcode.cn/problems/rotate-string/ | 4 | |
| 补充题19 | 判断一个点是否在三角形内 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/UK7ilkFeEDQeVWvLDHbuKA/ | 4 | |
| 1288 | 删除被覆盖区间 | https://leetcode.cn/problems/remove-covered-intervals/ | 4 | |
| 27 | 移除元素 | https://leetcode.cn/problems/remove-element/ | 4 | |
| 205 | 同构字符串 | https://leetcode.cn/problems/isomorphic-strings/ | 4 | |
| 280 | 摆动排序 | https://leetcode.cn/problems/wiggle-sort/ | 4 | |
| 321 | 拼接最大数 | https://leetcode.cn/problems/create-maximum-number/ | 4 | |
| 877 | 石子游戏 | https://leetcode.cn/problems/stone-game/ | 4 | |
| 331 | 验证二叉树的前序序列化 | https://leetcode.cn/problems/verify-preorder-serialization-of-a-binary-tree/ | 4 | |
| 633 | 平方数之和 | https://leetcode.cn/problems/sum-of-square-numbers/ | 4 | |
| 面试题 01.05 | 一次编辑 | https://leetcode.cn/problems/one-away-lcci/ | 4 | |
| 1339 | 分裂二叉树的最大乘积 | https://leetcode.cn/problems/maximum-product-of-splitted-binary-tree/ | 4 | |
| 743 | 网络延迟时间 | https://leetcode.cn/problems/network-delay-time/ | 4 | |
| 700 | 二叉搜索树中的搜索 | https://leetcode.cn/problems/search-in-a-binary-search-tree/ | 4 | |
| 324 | 摆动排序 II | https://leetcode.cn/problems/wiggle-sort-ii/ | 4 | |
| 面试题 08.02 | 迷路的机器人 | https://leetcode.cn/problems/robot-in-a-grid-lcci/ | 4 | |
| 203 | 移除链表元素 | https://leetcode.cn/problems/remove-linked-list-elements/ | 4 | |
| 369 | 给单链表加一 | https://leetcode.cn/problems/plus-one-linked-list/ | 4 | |
| 剑指 Offer 18 | 删除链表的节点 | https://leetcode.cn/problems/shan-chu-lian-biao-de-jie-dian-lcof/ | 4 | |
| 594 | 最长和谐子序列 | https://leetcode.cn/problems/longest-harmonious-subsequence/ | 3 | |
| 398 | 随机数索引 | https://leetcode.cn/problems/random-pick-index/ | 3 | |
| 1011 | 在 D 天内送达包裹的能力 | https://leetcode.cn/problems/capacity-to-ship-packages-within-d-days/ | 3 | |
| 332 | 重新安排行程 | https://leetcode.cn/problems/reconstruct-itinerary/ | 3 | |
| 745 | 前缀和后缀搜索 | https://leetcode.cn/problems/prefix-and-suffix-search/ | 3 | |
| 1049 | 最后一块石头的重量 II | https://leetcode.cn/problems/last-stone-weight-ii/ | 3 | |
| 剑指 Offer 47 | 礼物的最大价值 | https://leetcode.cn/problems/li-wu-de-zui-da-jie-zhi-lcof/ | 3 | |
| 1249 | 移除无效的括号 | https://leetcode.cn/problems/minimum-remove-to-make-valid-parentheses/ | 3 | |
| 1190 | 反转每对括号间的子串 | https://leetcode.cn/problems/reverse-substrings-between-each-pair-of-parentheses/ | 3 | |
| 463 | 岛屿的周长 | https://leetcode.cn/problems/island-perimeter/ | 3 | |
| 905 | 按奇偶排序数组 | https://leetcode.cn/problems/sort-array-by-parity/ | 3 | |
| 1642 | 可以到达的最远建筑 | https://leetcode.cn/problems/furthest-building-you-can-reach/ | 3 | |
| 1160 | 拼写单词 | https://leetcode.cn/problems/find-words-that-can-be-formed-by-characters/ | 3 | |
| 475 | 供暖器 | https://leetcode.cn/problems/heaters/ | 3 | |
| 621 | 任务调度器 | https://leetcode.cn/problems/task-scheduler/ | 3 | |
| 881 | 救生艇 | https://leetcode.cn/problems/boats-to-save-people/ | 3 | |
| 713 | 乘积小于K的子数组 | https://leetcode.cn/problems/subarray-product-less-than-k/ | 3 | |
| 1227 | 飞机座位分配概率 | https://leetcode.cn/problems/airplane-seat-assignment-probability/ | 3 | |
| 714 | 买卖股票的最佳时机含手续费 | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/ | 3 | |
| 1654 | 到家的最少跳跃次数 | https://leetcode.cn/problems/minimum-jumps-to-reach-home/ | 3 | |
| 面试题 08.11 | 硬币 | https://leetcode.cn/problems/coin-lcci/ | 3 | |
| 1245 | 树的直径 | https://leetcode.cn/problems/tree-diameter/ | 3 | |
| 377 | 组合总和 Ⅳ | https://leetcode.cn/problems/combination-sum-iv/ | 3 | |
| 733 | 图像渲染 | https://leetcode.cn/problems/flood-fill/ | 3 | |
| 845 | 数组中的最长山脉 | https://leetcode.cn/problems/longest-mountain-in-array/ | 3 | |
| 652 | 寻找重复的子树 | https://leetcode.cn/problems/find-duplicate-subtrees/ | 3 | |
| 147 | 对链表进行插入排序 | https://leetcode.cn/problems/insertion-sort-list/ | 3 | |
| 446 | 等差数列划分 II - 子序列 | https://leetcode.cn/problems/arithmetic-slices-ii-subsequence/ | 3 | |
| 1027 | 最长等差数列 | https://leetcode.cn/problems/longest-arithmetic-subsequence/ | 3 | |
| 632 | 最小区间 | https://leetcode.cn/problems/smallest-range-covering-elements-from-k-lists/ | 3 | |
| 剑指 Offer 16 | 数值的整数次方 | https://leetcode.cn/problems/shu-zhi-de-zheng-shu-ci-fang-lcof/ | 3 | |
| 820 | 单词的压缩编码 | https://leetcode.cn/problems/short-encoding-of-words/ | 3 | |
| 406 | 根据身高重建队列 | https://leetcode.cn/problems/queue-reconstruction-by-height/ | 3 | |
| 967 | 连续差相同的数字 | https://leetcode.cn/problems/numbers-with-same-consecutive-differences/ | 3 | |
| 478 | 在圆内随机生成点 | https://leetcode.cn/problems/generate-random-point-in-a-circle/ | 3 | |
| 829 | 连续整数求和 | https://leetcode.cn/problems/consecutive-numbers-sum/ | 3 | |
| 424 | 替换后的最长重复字符 | https://leetcode.cn/problems/longest-repeating-character-replacement/ | 3 | |
| 654 | 最大二叉树 | https://leetcode.cn/problems/maximum-binary-tree/ | 3 | |
| 52 | N皇后 II | https://leetcode.cn/problems/n-queens-ii/ | 3 | |
| 759 | 员工空闲时间 | https://leetcode.cn/problems/employee-free-time/ | 3 | |
| 66 | 加一 | https://leetcode.cn/problems/plus-one/ | 3 | |
| 304 | 二维区域和检索 - 矩阵不可变 | https://leetcode.cn/problems/range-sum-query-2d-immutable/ | 3 | |
| 303 | 区域和检索 - 数组不可变 | https://leetcode.cn/problems/range-sum-query-immutable/ | 3 | |
| 738 | 单调递增的数字 | https://leetcode.cn/problems/monotone-increasing-digits/ | 3 | |
| 剑指 Offer 56 - II | 数组中数字出现的次数 II | https://leetcode.cn/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof/ | 3 | |
| 1156 | 单字符重复子串的最大长度 | https://leetcode.cn/problems/swap-for-longest-repeated-character-substring/ | 3 | |
| 1497 | 检查数组对是否可以被 k 整除 | https://leetcode.cn/problems/check-if-array-pairs-are-divisible-by-k/ | 3 | |
| 870 | 优势洗牌 | https://leetcode.cn/problems/advantage-shuffle/ | 3 | |
| 剑指 Offer 66 | 构建乘积数组 | https://leetcode.cn/problems/gou-jian-cheng-ji-shu-zu-lcof/ | 3 | |
| 848 | 字母移位 | https://leetcode.cn/problems/shifting-letters/ | 3 | |
| 1155 | 掷骰子的N种方法 | https://leetcode.cn/problems/number-of-dice-rolls-with-target-sum/ | 3 | |
| 973 | 最接近原点的 K 个点 | https://leetcode.cn/problems/k-closest-points-to-origin/ | 3 | |
| 1302 | 层数最深叶子节点的和 | https://leetcode.cn/problems/deepest-leaves-sum/ | 3 | |
| 面试题 02.07 | 链表相交 | https://leetcode.cn/problems/intersection-of-two-linked-lists-lcci/ | 3 | |
| 补充题10 | 36进制减法 | https://leetcode.cn/problems/https://mp.weixin.qq.com/s/ub9GpTBjDF55hZld3V2rEA/ | 3 | |
| 1060 | 有序数组中的缺失元素 | https://leetcode.cn/problems/missing-element-in-sorted-array/ | 3 | |
| 1363 | 形成三的最大倍数 | https://leetcode.cn/problems/largest-multiple-of-three/ | 3 | |
| 311 | 稀疏矩阵的乘法 | https://leetcode.cn/problems/sparse-matrix-multiplication/ | 3 | |
| 564 | 寻找最近的回文数 | https://leetcode.cn/problems/find-the-closest-palindrome/ | 3 | |
| 剑指 Offer 13 | 机器人的运动范围 | https://leetcode.cn/problems/ji-qi-ren-de-yun-dong-fan-wei-lcof/ | 3 | |
| 305 | 岛屿数量 II | https://leetcode.cn/problems/number-of-islands-ii/ | 3 | |
| 376 | 摆动序列 | https://leetcode.cn/problems/wiggle-subsequence/ | 3 | |
| 448 | 找到所有数组中消失的数字 | https://leetcode.cn/problems/find-all-numbers-disappeared-in-an-array/ | 3 | |
| 剑指 Offer 05 | 替换空格 | https://leetcode.cn/problems/ti-huan-kong-ge-lcof/ | 3 | |
| 951 | 翻转等价二叉树 | https://leetcode.cn/problems/flip-equivalent-binary-trees/ | 3 | |
| 190 | 颠倒二进制位 | https://leetcode.cn/problems/reverse-bits/ | 3 | |
| 补充题18 | 反转双向链表 | https://leetcode.cn/problems/None/ | 3 | |
| 842 | 将数组拆分成斐波那契序列 | https://leetcode.cn/problems/split-array-into-fibonacci-sequence/ | 3 | |
| 116 | 填充每个节点的下一个右侧节点指针 | https://leetcode.cn/problems/populating-next-right-pointers-in-each-node/ | 3 | |
| 1038 | 从二叉搜索树到更大和树 | https://leetcode.cn/problems/binary-search-tree-to-greater-sum-tree/ | 3 | |
| 821 | 字符的最短距离 | https://leetcode.cn/problems/shortest-distance-to-a-character/ | 3 | |
| 面试题 02.01 | 移除重复节点 | https://leetcode.cn/problems/remove-duplicate-node-lcci/ | 3 | |
| 668 | 乘法表中第k小的数 | https://leetcode.cn/problems/kth-smallest-number-in-multiplication-table/ | 3 | |
| 1254 | 统计封闭岛屿的数目 | https://leetcode.cn/problems/number-of-closed-islands/ | 3 | |
| 剑指 Offer 55 - I | 二叉树的深度 | https://leetcode.cn/problems/er-cha-shu-de-shen-du-lcof/ | 3 | |
| 814 | 二叉树剪枝 | https://leetcode.cn/problems/binary-tree-pruning/ | 3 | |
| 1172 | 餐盘栈 | https://leetcode.cn/problems/dinner-plate-stacks/ | 2 | |
| 992 | K 个不同整数的子数组 | https://leetcode.cn/problems/subarrays-with-k-different-integers/ | 2 | |
| 707 | 设计链表 | https://leetcode.cn/problems/design-linked-list/ | 2 | |
| 805 | 数组的均值分割 | https://leetcode.cn/problems/split-array-with-same-average/ | 2 | |
| 1268 | 搜索推荐系统 | https://leetcode.cn/problems/search-suggestions-system/ | 2 | |
| 353 | 贪吃蛇 | https://leetcode.cn/problems/design-snake-game/ | 2 | |
| 984 | 不含 AAA 或 BBB 的字符串 | https://leetcode.cn/problems/string-without-aaa-or-bbb/ | 2 | |
| 791 | 自定义字符串排序 | https://leetcode.cn/problems/custom-sort-string/ | 2 | |
| 1124 | 表现良好的最长时间段 | https://leetcode.cn/problems/longest-well-performing-interval/ | 2 | |
| 1345 | 跳跃游戏 IV | https://leetcode.cn/problems/jump-game-iv/ | 2 | |
| 1375 | 灯泡开关 III | https://leetcode.cn/problems/bulb-switcher-iii/ | 2 | |
| 1483 | 树节点的第 K 个祖先 | https://leetcode.cn/problems/kth-ancestor-of-a-tree-node/ | 2 | |
| 1262 | 可被三整除的最大和 | https://leetcode.cn/problems/greatest-sum-divisible-by-three/ | 2 | |
| 290 | 单词规律 | https://leetcode.cn/problems/word-pattern/ | 2 | |
| 754 | 到达终点数字 | https://leetcode.cn/problems/reach-a-number/ | 2 | |
| 341 | 扁平化嵌套列表迭代器 | https://leetcode.cn/problems/flatten-nested-list-iterator/ | 2 | |
| 420 | 强密码检验器 | https://leetcode.cn/problems/strong-password-checker/ | 2 | |
| 269 | 火星词典 | https://leetcode.cn/problems/alien-dictionary/ | 2 | |
| 873 | 最长的斐波那契子序列的长度 | https://leetcode.cn/problems/length-of-longest-fibonacci-subsequence/ | 2 | |
| 263 | 丑数 | https://leetcode.cn/problems/ugly-number/ | 2 | |
| 剑指 Offer 68 - II | 二叉树的最近公共祖先 | https://leetcode.cn/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof/ | 2 | |
| 318 | 最大单词长度乘积 | https://leetcode.cn/problems/maximum-product-of-word-lengths/ | 2 | |
| 211 | 添加与搜索单词 - 数据结构设计 | https://leetcode.cn/problems/design-add-and-search-words-data-structure/ | 2 | |
| 403 | 青蛙过河 | https://leetcode.cn/problems/frog-jump/ | 2 | |
| 705 | 设计哈希集合 | https://leetcode.cn/problems/design-hashset/ | 2 | |
| 1035 | 不相交的线 | https://leetcode.cn/problems/uncrossed-lines/ | 2 | |
| 1089 | 复写零 | https://leetcode.cn/problems/duplicate-zeros/ | 2 | |
| 1092 | 最短公共超序列 | https://leetcode.cn/problems/shortest-common-supersequence/ | 2 | |
| 1240 | 铺瓷砖 | https://leetcode.cn/problems/tiling-a-rectangle-with-the-fewest-squares/ | 2 | |
| 696 | 计数二进制子串 | https://leetcode.cn/problems/count-binary-substrings/ | 2 | |
| 351 | 安卓系统手势解锁 | https://leetcode.cn/problems/android-unlock-patterns/ | 2 | |
| 432 | 全 O(1) 的数据结构 | https://leetcode.cn/problems/all-oone-data-structure/ | 2 | |
| 1208 | 尽可能使字符串相等 | https://leetcode.cn/problems/get-equal-substrings-within-budget/ | 2 | |
| 1505 | 最多 K 次交换相邻数位后得到的最小整数 | https://leetcode.cn/problems/minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits/ | 2 | |
| 414 | 第三大的数 | https://leetcode.cn/problems/third-maximum-number/ | 2 | |
| 593 | 有效的正方形 | https://leetcode.cn/problems/valid-square/ | 2 | |
| 1151 | 最少交换次数来组合所有的 1 | https://leetcode.cn/problems/minimum-swaps-to-group-all-1s-together/ | 2 | |
| 991 | 坏了的计算器 | https://leetcode.cn/problems/broken-calculator/ | 2 | |
| 面试题 17.07 | 婴儿名字 | https://leetcode.cn/problems/baby-names-lcci/ | 2 | |
| 501 | 二叉搜索树中的众数 | https://leetcode.cn/problems/find-mode-in-binary-search-tree/ | 2 | |
| 1115 | 交替打印FooBar | https://leetcode.cn/problems/print-foobar-alternately/ | 2 | |
| 797 | 所有可能的路径 | https://leetcode.cn/problems/all-paths-from-source-to-target/ | 2 | |
| 229 | 求众数 II | https://leetcode.cn/problems/majority-element-ii/ | 2 | |
| 583 | 两个字符串的删除操作 | https://leetcode.cn/problems/delete-operation-for-two-strings/ | 2 | |
| 剑指 Offer 14- II | 剪绳子 II | https://leetcode.cn/problems/jian-sheng-zi-ii-lcof/ | 2 | |
| 面试题 08.01 | 三步问题 | https://leetcode.cn/problems/three-steps-problem-lcci/ | 2 | |
| 259 | 较小的三数之和 | https://leetcode.cn/problems/3sum-smaller/ | 2 | |
| 779 | 第K个语法符号 | https://leetcode.cn/problems/k-th-symbol-in-grammar/ | 2 | |
| 413 | 等差数列划分 | https://leetcode.cn/problems/arithmetic-slices/ | 2 | |
| 1002 | 查找常用字符 | https://leetcode.cn/problems/find-common-characters/ | 2 | |
| 697 | 数组的度 | https://leetcode.cn/problems/degree-of-an-array/ | 2 | |
| 474 | 一和零 | https://leetcode.cn/problems/ones-and-zeroes/ | 2 | |
| 827 | 最大人工岛 | https://leetcode.cn/problems/making-a-large-island/ | 2 | |
| 1110 | 删点成林 | https://leetcode.cn/problems/delete-nodes-and-return-forest/ | 2 | |
| 1129 | 颜色交替的最短路径 | https://leetcode.cn/problems/shortest-path-with-alternating-colors/ | 2 | |
| 688 | “马”在棋盘上的概率 | https://leetcode.cn/problems/knight-probability-in-chessboard/ | 2 | |
| 1494 | 并行课程 II | https://leetcode.cn/problems/parallel-courses-ii/ | 2 | |
| 980 | 不同路径 III | https://leetcode.cn/problems/unique-paths-iii/ | 2 | |
| 1162 | 地图分析 | https://leetcode.cn/problems/as-far-from-land-as-possible/ | 2 | |
| 482 | 密钥格式化 | https://leetcode.cn/problems/license-key-formatting/ | 2 | |
| 524 | 通过删除字母匹配到字典里最长单词 | https://leetcode.cn/problems/longest-word-in-dictionary-through-deleting/ | 2 | |
| 剑指 Offer 67 | 把字符串转换成整数 | https://leetcode.cn/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof/ | 2 | |
| 剑指 Offer 20 | 表示数值的字符串 | https://leetcode.cn/problems/biao-shi-shu-zhi-de-zi-fu-chuan-lcof/ | 2 | |
| 396 | 旋转函数 | https://leetcode.cn/problems/rotate-function/ | 2 | |
| 1358 | 包含所有三种字符的子字符串数目 | https://leetcode.cn/problems/number-of-substrings-containing-all-three-characters/ | 2 | |
| 740 | 删除与获得点数 | https://leetcode.cn/problems/delete-and-earn/ | 2 | |
| 485 | 最大连续1的个数 | https://leetcode.cn/problems/max-consecutive-ones/ | 2 | |
| 剑指 Offer 68 - I | 二叉搜索树的最近公共祖先 | https://leetcode.cn/problems/er-cha-sou-suo-shu-de-zui-jin-gong-gong-zu-xian-lcof/ | 2 | |
| 542 | 01 矩阵 | https://leetcode.cn/problems/01-matrix/ | 2 | |
| 383 | 赎金信 | https://leetcode.cn/problems/ransom-note/ | 2 | |
| 345 | 反转字符串中的元音字母 | https://leetcode.cn/problems/reverse-vowels-of-a-string/ | 2 | |
| 面试题 17.05 | 字母与数字 | https://leetcode.cn/problems/find-longest-subarray-lcci/ | 2 | |
| 剑指 Offer 32 - I | 从上到下打印二叉树 | https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-lcof/ | 2 | |
| 987 | 二叉树的垂序遍历 | https://leetcode.cn/problems/vertical-order-traversal-of-a-binary-tree/ | 2 | |
| 1059 | 从始点到终点的所有路径 | https://leetcode.cn/problems/all-paths-from-source-lead-to-destination/ | 2 | |
| 剑指 Offer 55 - II | 平衡二叉树 | https://leetcode.cn/problems/ping-heng-er-cha-shu-lcof/ | 2 | |
| 541 | 反转字符串 II | https://leetcode.cn/problems/reverse-string-ii/ | 2 | |
| 799 | 香槟塔 | https://leetcode.cn/problems/champagne-tower/ | 2 | |
| 1574 | 删除最短的子数组使剩余数组有序 | https://leetcode.cn/problems/shortest-subarray-to-be-removed-to-make-array-sorted/ | 2 | |
| 1539 | 第 k 个缺失的正整数 | https://leetcode.cn/problems/kth-missing-positive-number/ | 2 | |
| 1094 | 拼车 | https://leetcode.cn/problems/car-pooling/ | 2 | |
| 669 | 修剪二叉搜索树 | https://leetcode.cn/problems/trim-a-binary-search-tree/ | 2 | |
| 653 | 两数之和 IV - 输入 BST | https://leetcode.cn/problems/two-sum-iv-input-is-a-bst/ | 2 | |
| 773 | 滑动谜题 | https://leetcode.cn/problems/sliding-puzzle/ | 2 | |
| 58 | 最后一个单词的长度 | https://leetcode.cn/problems/length-of-last-word/ | 2 | |
| 510 | 二叉搜索树中的中序后继 II | https://leetcode.cn/problems/inorder-successor-in-bst-ii/ | 2 | |
| 382 | 链表随机节点 | https://leetcode.cn/problems/linked-list-random-node/ | 2 | |
| 剑指 Offer 06 | 从尾到头打印链表 | https://leetcode.cn/problems/cong-wei-dao-tou-da-yin-lian-biao-lcof/ | 2 | |
| 391 | 完美矩形 | https://leetcode.cn/problems/perfect-rectangle/ | 2 | |
| 292 | Nim 游戏 | https://leetcode.cn/problems/nim-game/ | 2 | |
| 310 | 最小高度树 | https://leetcode.cn/problems/minimum-height-trees/ | 2 | |
| 880 | 索引处的解码字符串 | https://leetcode.cn/problems/decoded-string-at-index/ | 2 | |
| 727 | 最小窗口子序列 | https://leetcode.cn/problems/minimum-window-subsequence/ | 2 | |
| 剑指 Offer 44 | 数字序列中某一位的数字 | https://leetcode.cn/problems/shu-zi-xu-lie-zhong-mou-yi-wei-de-shu-zi-lcof/ | 2 | |
| 342 | 4的幂 | https://leetcode.cn/problems/power-of-four/ | 2 | |
| 491 | 递增子序列 | https://leetcode.cn/problems/increasing-subsequences/ | 2 | |
| 1114 | 按序打印 | https://leetcode.cn/problems/print-in-order/ | 2 | |
| 989 | 数组形式的整数加法 | https://leetcode.cn/problems/add-to-array-form-of-integer/ | 2 | |
| 918 | 环形子数组的最大和 | https://leetcode.cn/problems/maximum-sum-circular-subarray/ | 2 | |
| 201 | 数字范围按位与 | https://leetcode.cn/problems/bitwise-and-of-numbers-range/ | 2 | |
| 1081 | 不同字符的最小子序列 | https://leetcode.cn/problems/smallest-subsequence-of-distinct-characters/ | 2 | |
| 1195 | 交替打印字符串 | https://leetcode.cn/problems/fizz-buzz-multithreaded/ | 2 | |
| 319 | 灯泡开关 | https://leetcode.cn/problems/bulb-switcher/ | 2 | |
| 1100 | 长度为 K 的无重复字符子串 | https://leetcode.cn/problems/find-k-length-substrings-with-no-repeated-characters/ | 2 | |
| 309 | 最佳买卖股票时机含冷冻期 | https://leetcode.cn/problems/best-time-to-buy-and-sell-stock-with-cooldown/ | 2 | |
| 1154 | 一年中的第几天 | https://leetcode.cn/problems/day-of-the-year/ | 2 | |
| 剑指 Offer 57 | 和为s的两个数字 | https://leetcode.cn/problems/he-wei-sde-liang-ge-shu-zi-lcof/ | 2 | |
| 847 | 访问所有节点的最短路径 | https://leetcode.cn/problems/shortest-path-visiting-all-nodes/ | 2 | |
| 834 | 树中距离之和 | https://leetcode.cn/problems/sum-of-distances-in-tree/ | 2 | |
| 剑指 Offer 64 | 求1+2+…+n | https://leetcode.cn/problems/qiu-12n-lcof/ | 2 | |
| 面试题 16.06 | 最小差 | https://leetcode.cn/problems/smallest-difference-lcci/ | 2 | |
| 1139 | 最大的以 1 为边界的正方形 | https://leetcode.cn/problems/largest-1-bordered-square/ | 2 | |
| 面试题 17.22 | 单词转换 | https://leetcode.cn/problems/word-transformer-lcci/ | 2 | |
| 529 | 扫雷游戏 | https://leetcode.cn/problems/minesweeper/ | 2 | |
| 326 | 3的幂 | https://leetcode.cn/problems/power-of-three/ | 2 | |
| 770 | 基本计算器 IV | https://leetcode.cn/problems/basic-calculator-iv/ | 2 | |
| 1669 | 合并两个链表 | https://leetcode.cn/problems/merge-in-between-linked-lists/ | 2 | |
| 333 | 最大 BST 子树 | https://leetcode.cn/problems/largest-bst-subtree/ | 2 | |
| 990 | 等式方程的可满足性 | https://leetcode.cn/problems/satisfiability-of-equality-equations/ | 2 | |
| 879 | 盈利计划 | https://leetcode.cn/problems/profitable-schemes/ | 2 | |
| 976 | 三角形的最大周长 | https://leetcode.cn/problems/largest-perimeter-triangle/ | 2 | |
| 505 | 迷宫 II | https://leetcode.cn/problems/the-maze-ii/ | 2 | |
| 剑指 Offer 49 | 丑数 | https://leetcode.cn/problems/chou-shu-lcof/ | 2 | |
| 剑指 Offer 32 - II | 从上到下打印二叉树 II | https://leetcode.cn/problems/cong-shang-dao-xia-da-yin-er-cha-shu-ii-lcof/ | 2 | |
| 931 | 下降路径最小和 | https://leetcode.cn/problems/minimum-falling-path-sum/ | 2 | |
| 724 | 寻找数组的中心索引 | https://leetcode.cn/problems/find-pivot-index/ | 2 | |
| 665 | 非递减数列 | https://leetcode.cn/problems/non-decreasing-array/ | 2 | |
| 867 | 转置矩阵 | https://leetcode.cn/problems/transpose-matrix/ | 2 | |
| 剑指 Offer 28 | 对称的二叉树 | https://leetcode.cn/problems/dui-cheng-de-er-cha-shu-lcof/ | 2 | |
| 81 | 搜索旋转排序数组 II | https://leetcode.cn/problems/search-in-rotated-sorted-array-ii/ | 2 | |
| 457 | 环形数组循环 | https://leetcode.cn/problems/circular-array-loop/ | 2 | |
| 637 | 二叉树的层平均值 | https://leetcode.cn/problems/average-of-levels-in-binary-tree/ | 2 | |
| 949 | 给定数字能组成的最大时间 | https://leetcode.cn/problems/largest-time-for-given-digits/ | 2 | |
| 1356 | 根据数字二进制下 1 的数目排序 | https://leetcode.cn/problems/sort-integers-by-the-number-of-1-bits/ | 2 | |
| 871 | 最低加油次数 | https://leetcode.cn/problems/minimum-number-of-refueling-stops/ | 2 | |
| 1299 | 将每个元素替换为右侧最大元素 | https://leetcode.cn/problems/replace-elements-with-greatest-element-on-right-side/ | 2 | |
| 剑指 Offer 56 - I | 数组中数字出现的次数 | https://leetcode.cn/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-lcof/ | 2 | |
| 278 | 第一个错误的版本 | https://leetcode.cn/problems/first-bad-version/ | 2 | |
| 815 | 公交路线 | https://leetcode.cn/problems/bus-routes/ | 2 | |
| 1411 | 给 N x 3 网格图涂色的方案数 | https://leetcode.cn/problems/number-of-ways-to-paint-n-3-grid/ | 2 | |
| 362 | 敲击计数器 | https://leetcode.cn/problems/design-hit-counter/ | 2 | |
| 面试题 16.03 | 交点 | https://leetcode.cn/problems/intersection-lcci/ | 2 | |
| 220 | 存在重复元素 III | https://leetcode.cn/problems/contains-duplicate-iii/ | 2 | |
| 1325 | 删除给定值的叶子节点 | https://leetcode.cn/problems/delete-leaves-with-a-given-value/ | 2 | |
| 剑指 Offer 58 - II | 左旋转字符串 | https://leetcode.cn/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof/ | 2 | |
| 1026 | 节点与其祖先之间的最大差值 | https://leetcode.cn/problems/maximum-difference-between-node-and-ancestor/ | 2 | |
| 1201 | 丑数 III | https://leetcode.cn/problems/ugly-number-iii/ | 2 | |
| 1631 | 最小体力消耗路径 | https://leetcode.cn/problems/path-with-minimum-effort/ | 1 | |
| 1334 | 阈值距离内邻居最少的城市 | https://leetcode.cn/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/ | 1 | |
| 841 | 钥匙和房间 | https://leetcode.cn/problems/keys-and-rooms/ | 1 | |
| 634 | 寻找数组的错位排列 | https://leetcode.cn/problems/find-the-derangement-of-an-array/ | 1 | |
| 828 | 统计子串中的唯一字符 | https://leetcode.cn/problems/count-unique-characters-of-all-substrings-of-a-given-string/ | 1 | |
| 1594 | 矩阵的最大非负积 | https://leetcode.cn/problems/maximum-non-negative-product-in-a-matrix/ | 1 | |
| 面试题 01.09 | 字符串轮转 | https://leetcode.cn/problems/string-rotation-lcci/ | 1 | |
| 502 | IPO | https://leetcode.cn/problems/ipo/ | 1 | |
| 面试题 04.05 | 合法二叉搜索树 | https://leetcode.cn/problems/legal-binary-search-tree-lcci/ | 1 | |
| 937 | 重新排列日志文件 | https://leetcode.cn/problems/reorder-data-in-log-files/ | 1 | |
| 314 | 二叉树的垂直遍历 | https://leetcode.cn/problems/binary-tree-vertical-order-traversal/ | 1 | |
| 1381 | 设计一个支持增量操作的栈 | https://leetcode.cn/problems/design-a-stack-with-increment-operation/ | 1 | |
| 1204 | 最后一个能进入电梯的人 | https://leetcode.cn/problems/last-person-to-fit-in-the-elevator/ | 1 | |
| 面试题 10.01 | 合并排序的数组 | https://leetcode.cn/problems/sorted-merge-lcci/ | 1 | |
| 1292 | 元素和小于等于阈值的正方形的最大边长 | https://leetcode.cn/problems/maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold/ | 1 | |
| 1106 | 解析布尔表达式 | https://leetcode.cn/problems/parsing-a-boolean-expression/ | 1 | |
| 163 | 缺失的区间 | https://leetcode.cn/problems/missing-ranges/ | 1 | |
| 690 | 员工的重要性 | https://leetcode.cn/problems/employee-importance/ | 1 | |
| 784 | 字母大小写全排列 | https://leetcode.cn/problems/letter-case-permutation/ | 1 | |
| 372 | 超级次方 | https://leetcode.cn/problems/super-pow/ | 1 | |
| 1029 | 两地调度 | https://leetcode.cn/problems/two-city-scheduling/ | 1 | |
| 720 | 词典中最长的单词 | https://leetcode.cn/problems/longest-word-in-dictionary/ | 1 | |
| 面试题 17.18 | 最短超串 | https://leetcode.cn/problems/shortest-supersequence-lcci/ | 1 | |
| 590 | N叉树的后序遍历 | https://leetcode.cn/problems/n-ary-tree-postorder-traversal/ | 1 | |
| 719 | 找出第 k 小的距离对 | https://leetcode.cn/problems/find-k-th-smallest-pair-distance/ | 1 | |
| 444 | 序列重建 | https://leetcode.cn/problems/sequence-reconstruction/ | 1 | |
| 684 | 冗余连接 | https://leetcode.cn/problems/redundant-connection/ | 1 | |
| 839 | 相似字符串组 | https://leetcode.cn/problems/similar-string-groups/ | 1 | |
| 926 | 将字符串翻转到单调递增 | https://leetcode.cn/problems/flip-string-to-monotone-increasing/ | 1 | |
| 536 | 从字符串生成二叉树 | https://leetcode.cn/problems/construct-binary-tree-from-string/ | 1 | |
| 1005 | K 次取反后最大化的数组和 | https://leetcode.cn/problems/maximize-sum-of-array-after-k-negations/ | 1 | |
| 1123 | 最深叶节点的最近公共祖先 | https://leetcode.cn/problems/lowest-common-ancestor-of-deepest-leaves/ | 1 | |
| 1090 | 受标签影响的最大值 | https://leetcode.cn/problems/largest-values-from-labels/ | 1 | |
| 676 | 实现一个魔法字典 | https://leetcode.cn/problems/implement-magic-dictionary/ | 1 | |
| 419 | 甲板上的战舰 | https://leetcode.cn/problems/battleships-in-a-board/ | 1 | |
| 1226 | 哲学家进餐 | https://leetcode.cn/problems/the-dining-philosophers/ | 1 | |
| 256 | 粉刷房子 | https://leetcode.cn/problems/paint-house/ | 1 | |
| 729 | 我的日程安排表 I | https://leetcode.cn/problems/my-calendar-i/ | 1 | |
| 1228 | 等差数列中缺失的数字 | https://leetcode.cn/problems/missing-number-in-arithmetic-progression/ | 1 | |
| 1681 | 最小不兼容性 | https://leetcode.cn/problems/minimum-incompatibility/ | 1 | |
| 757 | 设置交集大小至少为2 | https://leetcode.cn/problems/set-intersection-size-at-least-two/ | 1 | |
| 1390 | 四因数 | https://leetcode.cn/problems/four-divisors/ | 1 | |
| 629 | K个逆序对数组 | https://leetcode.cn/problems/k-inverse-pairs-array/ | 1 | |
| 1230 | 抛掷硬币 | https://leetcode.cn/problems/toss-strange-coins/ | 1 | |
| 1212 | 查询球队积分 | https://leetcode.cn/problems/team-scores-in-football-tournament/ | 1 | |
| 289 | 生命游戏 | https://leetcode.cn/problems/game-of-life/ | 1 | |
| 741 | 摘樱桃 | https://leetcode.cn/problems/cherry-pickup/ | 1 | |
| 276 | 栅栏涂色 | https://leetcode.cn/problems/paint-fence/ | 1 | |
| 267 | 回文排列 II | https://leetcode.cn/problems/palindrome-permutation-ii/ | 1 | |
| 1344 | 时钟指针的夹角 | https://leetcode.cn/problems/angle-between-hands-of-a-clock/ | 1 | |
| 298 | 二叉树最长连续序列 | https://leetcode.cn/problems/binary-tree-longest-consecutive-sequence/ | 1 | |
| 174 | 地下城游戏 | https://leetcode.cn/problems/dungeon-game/ | 1 | |
| 1673 | 找出最具竞争力的子序列 | https://leetcode.cn/problems/find-the-most-competitive-subsequence/ | 1 | |
| 1091 | 二进制矩阵中的最短路径 | https://leetcode.cn/problems/shortest-path-in-binary-matrix/ | 1 | |
| 430 | 扁平化多级双向链表 | https://leetcode.cn/problems/flatten-a-multilevel-doubly-linked-list/ | 1 | |
| 1122 | 数组的相对排序 | https://leetcode.cn/problems/relative-sort-array/ | 1 | |
| 面试题 17.19 | 消失的两个数字 | https://leetcode.cn/problems/missing-two-lcci/ | 1 | |
| 466 | 统计重复个数 | https://leetcode.cn/problems/count-the-repetitions/ | 1 | |
| 910 | 最小差值 II | https://leetcode.cn/problems/smallest-range-ii/ | 1 | |
| 1462 | 课程安排 IV | https://leetcode.cn/problems/course-schedule-iv/ | 1 | |
| 1041 | 困于环中的机器人 | https://leetcode.cn/problems/robot-bounded-in-circle/ | 1 | |
| LCP 07 | 传递信息 | https://leetcode.cn/problems/chuan-di-xin-xi/ | 1 | |
| 面试题 04.01 | 节点间通路 | https://leetcode.cn/problems/route-between-nodes-lcci/ | 1 | |
| 1061 | 按字典序排列最小的等效字符串 | https://leetcode.cn/problems/lexicographically-smallest-equivalent-string/ | 1 | |
| 455 | 分发饼干 | https://leetcode.cn/problems/assign-cookies/ | 1 | |
| 860 | 柠檬水找零 | https://leetcode.cn/problems/lemonade-change/ | 1 | |
| 212 | 单词搜索 II | https://leetcode.cn/problems/word-search-ii/ | 1 | |
| 712 | 两个字符串的最小ASCII删除和 | https://leetcode.cn/problems/minimum-ascii-delete-sum-for-two-strings/ | 1 | |
| 1490 | 克隆 N 叉树 | https://leetcode.cn/problems/clone-n-ary-tree/ | 1 | |
| 962 | 最大宽度坡 | https://leetcode.cn/problems/maximum-width-ramp/ | 1 | |
| 945 | 使数组唯一的最小增量 | https://leetcode.cn/problems/minimum-increment-to-make-array-unique/ | 1 | |
| 1022 | 从根到叶的二进制数之和 | https://leetcode.cn/problems/sum-of-root-to-leaf-binary-numbers/ | 1 | |
| 969 | 煎饼排序 | https://leetcode.cn/problems/pancake-sorting/ | 1 | |
| 988 | 从叶结点开始的最小字符串 | https://leetcode.cn/problems/smallest-string-starting-from-leaf/ | 1 | |
| 859 | 亲密字符串 | https://leetcode.cn/problems/buddy-strings/ | 1 | |
| 1523 | 在区间范围内统计奇数数目 | https://leetcode.cn/problems/count-odd-numbers-in-an-interval-range/ | 1 | |
| 1566 | 重复至少 K 次且长度为 M 的模式 | https://leetcode.cn/problems/detect-pattern-of-length-m-repeated-k-or-more-times/ | 1 | |
| 1488 | 避免洪水泛滥 | https://leetcode.cn/problems/avoid-flood-in-the-city/ | 1 | |
| 186 | 翻转字符串里的单词 II | https://leetcode.cn/problems/reverse-words-in-a-string-ii/ | 1 | |
| 1188 | 设计有限阻塞队列 | https://leetcode.cn/problems/design-bounded-blocking-queue/ | 1 | |
| 856 | 括号的分数 | https://leetcode.cn/problems/score-of-parentheses/ | 1 | |
| 面试题 16.01 | 交换数字 | https://leetcode.cn/problems/swap-numbers-lcci/ | 1 | |
| 659 | 分割数组为连续子序列 | https://leetcode.cn/problems/split-array-into-consecutive-subsequences/ | 1 | |
| 957 | N 天后的牢房 | https://leetcode.cn/problems/prison-cells-after-n-days/ | 1 | |
| 750 | 角矩形的数量 | https://leetcode.cn/problems/number-of-corner-rectangles/ | 1 | |
| 1020 | 飞地的数量 | https://leetcode.cn/problems/number-of-enclaves/ | 1 | |
| 面试题 03.02 | 栈的最小值 | https://leetcode.cn/problems/min-stack-lcci/ | 1 | |
| 940 | 不同的子序列 II | https://leetcode.cn/problems/distinct-subsequences-ii/ | 1 | |
| 面试题 01.03 | URL化 | https://leetcode.cn/problems/string-to-url-lcci/ | 1 | |
| 244 | 最短单词距离 II | https://leetcode.cn/problems/shortest-word-distance-ii/ | 1 | |
| 385 | 迷你语法分析器 | https://leetcode.cn/problems/mini-parser/ | 1 | |
| LCP 09 | 最小跳跃次数 | https://leetcode.cn/problems/zui-xiao-tiao-yue-ci-shu/ | 1 | |
| 801 | 使序列递增的最小交换次数 | https://leetcode.cn/problems/minimum-swaps-to-make-sequences-increasing/ | 1 | |
| 1368 | 使网格图至少有一条有效路径的最小代价 | https://leetcode.cn/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/ | 1 | |
| 650 | 只有两个键的键盘 | https://leetcode.cn/problems/2-keys-keyboard/ | 1 | |
| 1080 | 根到叶路径上的不足节点 | https://leetcode.cn/problems/insufficient-nodes-in-root-to-leaf-paths/ | 1 | |
| 462 | 最少移动次数使数组元素相等 II | https://leetcode.cn/problems/minimum-moves-to-equal-array-elements-ii/ | 1 | |
| 357 | 计算各个位数不同的数字个数 | https://leetcode.cn/problems/count-numbers-with-unique-digits/ | 1 | |
| 1259 | 不相交的握手 | https://leetcode.cn/problems/handshakes-that-dont-cross/ | 1 | |
| 1145 | 二叉树着色游戏 | https://leetcode.cn/problems/binary-tree-coloring-game/ | 1 | |
| 436 | 寻找右区间 | https://leetcode.cn/problems/find-right-interval/ | 1 | |
| 667 | 优美的排列 II | https://leetcode.cn/problems/beautiful-arrangement-ii/ | 1 | |
| 656 | 金币路径 | https://leetcode.cn/problems/coin-path/ | 1 | |
| 1584 | 连接所有点的最小费用 | https://leetcode.cn/problems/min-cost-to-connect-all-points/ | 1 | |
| 730 | 统计不同回文子序列 | https://leetcode.cn/problems/count-different-palindromic-subsequences/ | 1 | |
| 725 | 分隔链表 | https://leetcode.cn/problems/split-linked-list-in-parts/ | 1 | |
| 878 | 第 N 个神奇数字 | https://leetcode.cn/problems/nth-magical-number/ | 1 | |
| 1261 | 在受污染的二叉树中查找元素 | https://leetcode.cn/problems/find-elements-in-a-contaminated-binary-tree/ | 1 | |
| 374 | 猜数字大小 | https://leetcode.cn/problems/guess-number-higher-or-lower/ | 1 | |
| 面试题 04.02 | 最小高度树 | https://leetcode.cn/problems/minimum-height-tree-lcci/ | 1 | |
| 917 | 仅仅反转字母 | https://leetcode.cn/problems/reverse-only-letters/ | 1 | |
| 1376 | 通知所有员工所需的时间 | https://leetcode.cn/problems/time-needed-to-inform-all-employees/ | 1 | |
| 1373 | 二叉搜索子树的最大键值和 | https://leetcode.cn/problems/maximum-sum-bst-in-binary-tree/ | 1 | |
| 176 | 第二高的薪水 | https://leetcode.cn/problems/second-highest-salary/ | 1 | |
| 441 | 排列硬币 | https://leetcode.cn/problems/arranging-coins/ | 1 | |
| 983 | 最低票价 | https://leetcode.cn/problems/minimum-cost-for-tickets/ | 1 | |
| 1458 | 两个子序列的最大点积 | https://leetcode.cn/problems/max-dot-product-of-two-subsequences/ | 1 | |
| 843 | 猜猜这个单词 | https://leetcode.cn/problems/guess-the-word/ | 1 | |
| 1487 | 保证文件名唯一 | https://leetcode.cn/problems/making-file-names-unique/ | 1 | |
| 1685 | 有序数组中差绝对值之和 | https://leetcode.cn/problems/sum-of-absolute-differences-in-a-sorted-array/ | 1 | |
| 775 | 全局倒置与局部倒置 | https://leetcode.cn/problems/global-and-local-inversions/ | 1 | |
| 979 | 在二叉树中分配硬币 | https://leetcode.cn/problems/distribute-coins-in-binary-tree/ | 1 | |
| 774 | 最小化去加油站的最大距离 | https://leetcode.cn/problems/minimize-max-distance-to-gas-station/ | 1 | |
| 360 | 有序转化数组 | https://leetcode.cn/problems/sort-transformed-array/ | 1 | |
| 507 | 完美数 | https://leetcode.cn/problems/perfect-number/ | 1 | |
| 1330 | 翻转子数组得到最大的数组值 | https://leetcode.cn/problems/reverse-subarray-to-maximize-array-value/ | 1 | |
| 1058 | 最小化舍入误差以满足目标 | https://leetcode.cn/problems/minimize-rounding-error-to-meet-target/ | 1 | |
| 281 | 锯齿迭代器 | https://leetcode.cn/problems/zigzag-iterator/ | 1 | |
| 954 | 二倍数对数组 | https://leetcode.cn/problems/array-of-doubled-pairs/ | 1 | |
| 955 | 删列造序 II | https://leetcode.cn/problems/delete-columns-to-make-sorted-ii/ | 1 | |
| 960 | 删列造序 III | https://leetcode.cn/problems/delete-columns-to-make-sorted-iii/ | 1 | |
| 1218 | 最长定差子序列 | https://leetcode.cn/problems/longest-arithmetic-subsequence-of-given-difference/ | 1 | |
| 993 | 二叉树的堂兄弟节点 | https://leetcode.cn/problems/cousins-in-binary-tree/ | 1 | |
| 1287 | 有序数组中出现次数超过25%的元素 | https://leetcode.cn/problems/element-appearing-more-than-25-in-sorted-array/ | 1 | |
| 1290 | 二进制链表转整数 | https://leetcode.cn/problems/convert-binary-number-in-a-linked-list-to-integer/ | 1 | |
| 184 | 部门工资最高的员工 | https://leetcode.cn/problems/department-highest-salary/ | 1 | |
| 196 | 删除重复的电子邮箱 | https://leetcode.cn/problems/delete-duplicate-emails/ | 1 | |
| 390 | 消除游戏 | https://leetcode.cn/problems/elimination-game/ | 1 | |
| 423 | 从英文中重建数字 | https://leetcode.cn/problems/reconstruct-original-digits-from-english/ | 1 | |
| 434 | 字符串中的单词数 | https://leetcode.cn/problems/number-of-segments-in-a-string/ | 1 | |
| 575 | 分糖果 | https://leetcode.cn/problems/distribute-candies/ | 1 | |
| 1074 | 元素和为目标值的子矩阵数量 | https://leetcode.cn/problems/number-of-submatrices-that-sum-to-target/ | 1 | |
| 197 | 上升的温度 | https://leetcode.cn/problems/rising-temperature/ | 1 | |
| 1542 | 找出最长的超赞子字符串 | https://leetcode.cn/problems/find-longest-awesome-substring/ | 1 | |
| 178 | 分数排名 | https://leetcode.cn/problems/rank-scores/ | 1 | |
| 177 | 第N高的薪水 | https://leetcode.cn/problems/nth-highest-salary/ | 1 | |
| 180 | 连续出现的数字 | https://leetcode.cn/problems/consecutive-numbers/ | 1 | |
| 181 | 超过经理收入的员工 | https://leetcode.cn/problems/employees-earning-more-than-their-managers/ | 1 | |
| 1096 | 花括号展开 II | https://leetcode.cn/problems/brace-expansion-ii/ | 1 | |
| 面试题 17.12 | BiNode | https://leetcode.cn/problems/binode-lcci/ | 1 | |
| 605 | 种花问题 | https://leetcode.cn/problems/can-place-flowers/ | 1 | |
| 1480 | 一维数组的动态和 | https://leetcode.cn/problems/running-sum-of-1d-array/ | 1 | |
| 938 | 二叉搜索树的范围和 | https://leetcode.cn/problems/range-sum-of-bst/ | 1 | |
| 65 | 有效数字 | https://leetcode.cn/problems/valid-number/ | 1 | |
| 792 | 匹配子序列的单词数 | https://leetcode.cn/problems/number-of-matching-subsequences/ | 1 | |
| 308 | 二维区域和检索 - 可变 | https://leetcode.cn/problems/range-sum-query-2d-mutable/ | 1 | |
| 1087 | 字母切换 | https://leetcode.cn/problems/brace-expansion/ | 1 | |
| 1360 | 日期之间隔几天 | https://leetcode.cn/problems/number-of-days-between-two-dates/ | 1 | |
| 面试题 03.05 | 栈排序 | https://leetcode.cn/problems/sort-of-stacks-lcci/ | 1 | |
| 1690 | 石子游戏 VII | https://leetcode.cn/problems/stone-game-vii/ | 1 | |
| 472 | 连接词 | https://leetcode.cn/problems/concatenated-words/ | 1 | |
| 389 | 找不同 | https://leetcode.cn/problems/find-the-difference/ | 1 | |
| 1000 | 合并石头的最低成本 | https://leetcode.cn/problems/minimum-cost-to-merge-stones/ | 1 | |
| 228 | 汇总区间 | https://leetcode.cn/problems/summary-ranges/ | 1 | |
| 666 | 路径和 IV | https://leetcode.cn/problems/path-sum-iv/ | 1 | |
| 461 | 汉明距离 | https://leetcode.cn/problems/hamming-distance/ | 1 | |
| 538 | 把二叉搜索树转换为累加树 | https://leetcode.cn/problems/convert-bst-to-greater-tree/ | 1 | |
| 1146 | 快照数组 | https://leetcode.cn/problems/snapshot-array/ | 1 | |
| 1008 | 先序遍历构造二叉树 | https://leetcode.cn/problems/construct-binary-search-tree-from-preorder-traversal/ | 1 | |
| 930 | 和相同的二元子数组 | https://leetcode.cn/problems/binary-subarrays-with-sum/ | 1 | |
| 面试题 01.01 | 判定字符是否唯一 | https://leetcode.cn/problems/is-unique-lcci/ | 1 | |
| 1614 | 括号的最大嵌套深度 | https://leetcode.cn/problems/maximum-nesting-depth-of-the-parentheses/ | 1 | |
| 95 | 不同的二叉搜索树 II | https://leetcode.cn/problems/unique-binary-search-trees-ii/ | 1 | |
| 1248 | 统计「优美子数组」 | https://leetcode.cn/problems/count-number-of-nice-subarrays/ | 1 | |
| 1214 | 查找两棵二叉搜索树之和 | https://leetcode.cn/problems/two-sum-bsts/ | 1 | |
| 面试题 16.20 | T9键盘 | https://leetcode.cn/problems/t9-lcci/ | 1 | |
| 1665 | 完成所有任务的最少初始能量 | https://leetcode.cn/problems/minimum-initial-energy-to-finish-tasks/ | 1 | |
| 面试题 02.04 | 分割链表 | https://leetcode.cn/problems/partition-list-lcci/ | 1 | |
| 1451 | 重新排列句子中的单词 | https://leetcode.cn/problems/rearrange-words-in-a-sentence/ | 1 | |
| 1524 | 和为奇数的子数组数目 | https://leetcode.cn/problems/number-of-sub-arrays-with-odd-sum/ | 1 | |
| 751 | IP 到 CIDR | https://leetcode.cn/problems/ip-to-cidr/ | 1 | |
| 849 | 到最近的人的最大距离 | https://leetcode.cn/problems/maximize-distance-to-closest-person/ | 1 | |
| 677 | 键值映射 | https://leetcode.cn/problems/map-sum-pairs/ | 1 | |
| 1361 | 验证二叉树 | https://leetcode.cn/problems/validate-binary-tree-nodes/ | 1 | |
| 1365 | 有多少小于当前数字的数字 | https://leetcode.cn/problems/how-many-numbers-are-smaller-than-the-current-number/ | 1 | |
| 38 | 外观数列 | https://leetcode.cn/problems/count-and-say/ | 1 | |
| 剑指 Offer 30 | 包含min函数的栈 | https://leetcode.cn/problems/bao-han-minhan-shu-de-zhan-lcof/ | 1 | |
| 面试题 08.13 | 堆箱子 | https://leetcode.cn/problems/pile-box-lcci/ | 1 | |
| 768 | 最多能完成排序的块 II | https://leetcode.cn/problems/max-chunks-to-make-sorted-ii/ | 1 | |
| 835 | 图像重叠 | https://leetcode.cn/problems/image-overlap/ | 1 | |
| 555 | 分割连接字符串 | https://leetcode.cn/problems/split-concatenated-strings/ | 1 | |
| 1282 | 用户分组 | https://leetcode.cn/problems/group-the-people-given-the-group-size-they-belong-to/ | 1 | |
| 477 | 汉明距离总和 | https://leetcode.cn/problems/total-hamming-distance/ | 1 | |
| 1104 | 二叉树寻路 | https://leetcode.cn/problems/path-in-zigzag-labelled-binary-tree/ | 1 | |
| 面试题 16.10 | 生存人数 | https://leetcode.cn/problems/living-people-lcci/ | 1 | |
| 399 | 除法求值 | https://leetcode.cn/problems/evaluate-division/ | 1 | |
| 338 | 比特位计数 | https://leetcode.cn/problems/counting-bits/ | 1 | |
| 1343 | 大小为 K 且平均值大于等于阈值的子数组数目 | https://leetcode.cn/problems/number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold/ | 1 | |
| 1552 | 两球之间的磁力 | https://leetcode.cn/problems/magnetic-force-between-two-balls/ | 1 | |
| 612 | 平面上的最近距离 | https://leetcode.cn/problems/shortest-distance-in-a-plane/ | 1 | |
| 1231 | 分享巧克力 | https://leetcode.cn/problems/divide-chocolate/ | 1 | |
| 1504 | 统计全 1 子矩形 | https://leetcode.cn/problems/count-submatrices-with-all-ones/ | 1 | |
| 1222 | 可以攻击国王的皇后 | https://leetcode.cn/problems/queens-that-can-attack-the-king/ | 1 | |
| 1647 | 字符频次唯一的最小删除次数 | https://leetcode.cn/problems/minimum-deletions-to-make-character-frequencies-unique/ | 1 | |
| 710 | 黑名单中的随机数 | https://leetcode.cn/problems/random-pick-with-blacklist/ | 1 | |
| 218 | 天际线问题 | https://leetcode.cn/problems/the-skyline-problem/ | 1 | |
| 1232 | 缀点成线 | https://leetcode.cn/problems/check-if-it-is-a-straight-line/ | 1 | |
| 566 | 重塑矩阵 | https://leetcode.cn/problems/reshape-the-matrix/ | 1 | |
| 补充题15 | 自然数数组的排序 | https://leetcode.cn/problems/None/ | 1 | |
| 面试题 02.03 | 删除中间节点 | https://leetcode.cn/problems/delete-middle-node-lcci/ | 1 | |
| 面试题 16.26 | 计算器 | https://leetcode.cn/problems/calculator-lcci/ | 1 | |
| 面试题 04.06 | 后继者 | https://leetcode.cn/problems/successor-lcci/ | 1 | |
| 1003 | 检查替换后的词是否有效 | https://leetcode.cn/problems/check-if-word-is-valid-after-substitutions/ | 1 | |
| 1166 | 设计文件系统 | https://leetcode.cn/problems/design-file-system/ | 1 | |
| 490 | 迷宫 | https://leetcode.cn/problems/the-maze/ | 1 | |
| 299 | 猜数字游戏 | https://leetcode.cn/problems/bulls-and-cows/ | 1 | |
| 648 | 单词替换 | https://leetcode.cn/problems/replace-words/ | 1 | |
| 1024 | 视频拼接 | https://leetcode.cn/problems/video-stitching/ | 1 | |
| 323 | 无向图中连通分量的数目 | https://leetcode.cn/problems/number-of-connected-components-in-an-undirected-graph/ | 1 | |
| 932 | 漂亮数组 | https://leetcode.cn/problems/beautiful-array/ | 1 | |
| 689 | 三个无重叠子数组的最大和 | https://leetcode.cn/problems/maximum-sum-of-3-non-overlapping-subarrays/ | 1 | |
| 126 | 单词接龙 II | https://leetcode.cn/problems/word-ladder-ii/ | 1 | |
| 934 | 最短的桥 | https://leetcode.cn/problems/shortest-bridge/ | 1 | |
| 417 | 太平洋大西洋水流问题 | https://leetcode.cn/problems/pacific-atlantic-water-flow/ | 1 | |
| 1367 | 二叉树中的列表 | https://leetcode.cn/problems/linked-list-in-binary-tree/ | 1 | |
| 1456 | 定长子串中元音的最大数目 | https://leetcode.cn/problems/maximum-number-of-vowels-in-a-substring-of-given-length/ | 1 | |
| 777 | 在LR字符串中交换相邻字符 | https://leetcode.cn/problems/swap-adjacent-in-lr-string/ | 1 | |
| 1277 | 统计全为 1 的正方形子矩阵 | https://leetcode.cn/problems/count-square-submatrices-with-all-ones/ | 1 | |
| 458 | 可怜的小猪 | https://leetcode.cn/problems/poor-pigs/ | 1 | |
| 313 | 超级丑数 | https://leetcode.cn/problems/super-ugly-number/ | 1 | |
| 1247 | 交换字符使得字符串相同 | https://leetcode.cn/problems/minimum-swaps-to-make-strings-equal/ | 1 | |
| 1135 | 最低成本联通所有城市 | https://leetcode.cn/problems/connecting-cities-with-minimum-cost/ | 1 | |
| 296 | 最佳的碰头地点 | https://leetcode.cn/problems/best-meeting-point/ | 1 | |
| 646 | 最长数对链 | https://leetcode.cn/problems/maximum-length-of-pair-chain/ | 1 | |
| 888 | 公平的糖果交换 | https://leetcode.cn/problems/fair-candy-swap/ | 1 | |
| 854 | 相似度为 K 的字符串 | https://leetcode.cn/problems/k-similar-strings/ | 1 | |
| 265 | 粉刷房子 II | https://leetcode.cn/problems/paint-house-ii/ | 1 | |
| 219 | 存在重复元素 II | https://leetcode.cn/problems/contains-duplicate-ii/ | 1 | |
| 216 | 组合总和 III | https://leetcode.cn/problems/combination-sum-iii/ | 1 | |
| 736 | Lisp 语法解析 | https://leetcode.cn/problems/parse-lisp-expression/ | 1 | |
| 1328 | 破坏回文串 | https://leetcode.cn/problems/break-a-palindrome/ | 1 | |
| 897 | 递增顺序查找树 | https://leetcode.cn/problems/increasing-order-search-tree/ | 1 | |
| 997 | 找到小镇的法官 | https://leetcode.cn/problems/find-the-town-judge/ | 1 | |
| 746 | 使用最小花费爬楼梯 | https://leetcode.cn/problems/min-cost-climbing-stairs/ | 1 | |
| 861 | 翻转矩阵后的得分 | https://leetcode.cn/problems/score-after-flipping-matrix/ | 1 | |
| 1410 | HTML 实体解析器 | https://leetcode.cn/problems/html-entity-parser/ | 1 | |
| 1446 | 连续字符 | https://leetcode.cn/problems/consecutive-characters/ | 1 | |
| 941 | 有效的山脉数组 | https://leetcode.cn/problems/valid-mountain-array/ | 1 | |
| 844 | 比较含退格的字符串 | https://leetcode.cn/problems/backspace-string-compare/ | 1 | |
| 1675 | 数组的最小偏移量 | https://leetcode.cn/problems/minimize-deviation-in-array/ | 1 | |
| 589 | N叉树的前序遍历 | https://leetcode.cn/problems/n-ary-tree-preorder-traversal/ | 1 | |
| 999 | 可以被一步捕获的棋子数 | https://leetcode.cn/problems/available-captures-for-rook/ | 1 | |
| 950 | 按递增顺序显示卡牌 | https://leetcode.cn/problems/reveal-cards-in-increasing-order/ | 1 | |
| 1567 | 乘积为正数的最长子数组长度 | https://leetcode.cn/problems/maximum-length-of-subarray-with-positive-product/ | 1 | |
| 570 | 至少有5名直接下属的经理 | https://leetcode.cn/problems/managers-with-at-least-5-direct-reports/ | 1 | |
| 783 | 二叉搜索树节点最小距离 | https://leetcode.cn/problems/minimum-distance-between-bst-nodes/ | 1 | |
| 355 | 设计推特 | https://leetcode.cn/problems/design-twitter/ | 1 | |
| 1475 | 商品折扣后的最终价格 | https://leetcode.cn/problems/final-prices-with-a-special-discount-in-a-shop/ | 1 | |
| 1209 | 删除字符串中的所有相邻重复项 II | https://leetcode.cn/problems/remove-all-adjacent-duplicates-in-string-ii/ | 1 | |
| 493 | 翻转对 | https://leetcode.cn/problems/reverse-pairs/ | 1 | |
| LCP 17 | 速算机器人 | https://leetcode.cn/problems/nGK0Fy/ | 1 | |
| 927 | 三等分 | https://leetcode.cn/problems/three-equal-parts/ | 1 | |
| 496 | 下一个更大元素 I | https://leetcode.cn/problems/next-greater-element-i/ | 1 | |
| 1186 | 删除一次得到子数组最大和 | https://leetcode.cn/problems/maximum-subarray-sum-with-one-deletion/ | 1 | |
| 1405 | 最长快乐字符串 | https://leetcode.cn/problems/longest-happy-string/ | 1 | |
| 1219 | 黄金矿工 | https://leetcode.cn/problems/path-with-maximum-gold/ | 1 | |
| 1306 | 跳跃游戏 III | https://leetcode.cn/problems/jump-game-iii/ | 1 | |
| 367 | 有效的完全平方数 | https://leetcode.cn/problems/valid-perfect-square/ | 1 | |
| 面试题 03.03 | 堆盘子 | https://leetcode.cn/problems/stack-of-plates-lcci/ | 1 | |
| 1116 | 打印零与奇偶数 | https://leetcode.cn/problems/print-zero-even-odd/ | 1 | |
| LCP 04 | 覆盖 | https://leetcode.cn/problems/broken-board-dominoes/ | 1 | |
| 1168 | 水资源分配优化 | https://leetcode.cn/problems/optimize-water-distribution-in-a-village/ | 1 | |
| 1341 | 电影评分 | https://leetcode.cn/problems/movie-rating/ | 1 | |
| 514 | 自由之路 | https://leetcode.cn/problems/freedom-trail/ | 1 | |
| 1570 | 两个稀疏向量的点积 | https://leetcode.cn/problems/dot-product-of-two-sparse-vectors/ | 1 | |
| 1615 | 最大网络秩 | https://leetcode.cn/problems/maximal-network-rank/ | 1 | |
| 643 | 子数组最大平均数 I | https://leetcode.cn/problems/maximum-average-subarray-i/ | 1 | |
| 258 | 各位相加 | https://leetcode.cn/problems/add-digits/ | 1 | |
| 598 | 范围求和 II | https://leetcode.cn/problems/range-addition-ii/ | 1 | |
| 765 | 情侣牵手 | https://leetcode.cn/problems/couples-holding-hands/ | 1 | |
| 397 | 整数替换 | https://leetcode.cn/problems/integer-replacement/ | 1 | |
| 728 | 自除数 | https://leetcode.cn/problems/self-dividing-numbers/ | 1 | |
| 1107 | 每日新用户统计 | https://leetcode.cn/problems/new-users-daily-count/ | 1 | |
| 面试题 02.08 | 环路检测 | https://leetcode.cn/problems/linked-list-cycle-lcci/ | 1 | |
| 1420 | 生成数组 | https://leetcode.cn/problems/build-array-where-you-can-find-the-maximum-exactly-k-comparisons/ | 1 | |
| 717 | 1比特与2比特字符 | https://leetcode.cn/problems/1-bit-and-2-bit-characters/ | 1 | |
| 1563 | 石子游戏 V | https://leetcode.cn/problems/stone-game-v/ | 1 | |
| 588 | 设计内存文件系统 | https://leetcode.cn/problems/design-in-memory-file-system/ | 1 | |
| 361 | 轰炸敌人 | https://leetcode.cn/problems/bomb-enemy/ | 1 | |
| 1518 | 换酒问题 | https://leetcode.cn/problems/water-bottles/ | 1 | |
| 549 | 二叉树中最长的连续序列 | https://leetcode.cn/problems/binary-tree-longest-consecutive-sequence-ii/ | 1 | |
| 609 | 在系统中查找重复文件 | https://leetcode.cn/problems/find-duplicate-file-in-system/ | 1 | |
| 面试题 17.21 | 直方图的水量 | https://leetcode.cn/problems/volume-of-histogram-lcci/ | 1 | |
| 1019 | 链表中的下一个更大节点 | https://leetcode.cn/problems/next-greater-node-in-linked-list/ | 1 | |
| 569 | 员工薪水中位数 | https://leetcode.cn/problems/median-employee-salary/ | 1 | |
| 307 | 区域和检索 - 数组可修改 | https://leetcode.cn/problems/range-sum-query-mutable/ | 1 | |
| 1498 | 满足条件的子序列数目 | https://leetcode.cn/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/ | 1 | |
| 904 | 水果成篮 | https://leetcode.cn/problems/fruit-into-baskets/ | 1 | |
| 929 | 独特的电子邮件地址 | https://leetcode.cn/problems/unique-email-addresses/ | 1 | |
| 1314 | 矩阵区域和 | https://leetcode.cn/problems/matrix-block-sum/ | 1 | |
| 919 | 完全二叉树插入器 | https://leetcode.cn/problems/complete-binary-tree-inserter/ | 1 | |
| 865 | 具有所有最深结点的最小子树 | https://leetcode.cn/problems/smallest-subtree-with-all-the-deepest-nodes/ | 1 | |
| 956 | 最高的广告牌 | https://leetcode.cn/problems/tallest-billboard/ | 1 | |
| 277 | 搜寻名人 | https://leetcode.cn/problems/find-the-celebrity/ | 1 | |
| 255 | 验证前序遍历序列二叉搜索树 | https://leetcode.cn/problems/verify-preorder-sequence-in-binary-search-tree/ | 1 | |
| 562 | 矩阵中最长的连续1线段 | https://leetcode.cn/problems/longest-line-of-consecutive-one-in-matrix/ | 1 | |
| 1147 | 段式回文 | https://leetcode.cn/problems/longest-chunked-palindrome-decomposition/ | 1 | |
| 515 | 在每个树行中找最大值 | https://leetcode.cn/problems/find-largest-value-in-each-tree-row/ | 1 | |
| 636 | 函数的独占时间 | https://leetcode.cn/problems/exclusive-time-of-functions/ | 1 | |
| 1464 | 数组中两元素的最大乘积 | https://leetcode.cn/problems/maximum-product-of-two-elements-in-an-array/ | 1 | |
| 431 | 将 N 叉树编码为二叉树 | https://leetcode.cn/problems/encode-n-ary-tree-to-binary-tree/ | 1 |
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