更新2.4后端

bytedance/backend.md

@@ -1,204 +1,222 @@
 |题目|出现次数|链接|
 |-|-|-|
-|25. K 个一组翻转链表|21|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
-|3. 无重复字符的最长子串|19|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
-|15. 三数之和|18|https://leetcode-cn.com/problems/3sum|
-|103. 二叉树的锯齿形层次遍历|16|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
-|121. 买卖股票的最佳时机|16|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
-|146. LRU缓存机制|15|https://leetcode-cn.com/problems/lru-cache|
-|199. 二叉树的右视图|14|https://leetcode-cn.com/problems/binary-tree-right-side-view|
-|42. 接雨水|12|https://leetcode-cn.com/problems/trapping-rain-water|
-|206. 反转链表|12|https://leetcode-cn.com/problems/reverse-linked-list|
+|3. 无重复字符的最长子串|23|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
+|25. K 个一组翻转链表|23|https://leetcode-cn.com/problems/reverse-nodes-in-k-group|
+|15. 三数之和|22|https://leetcode-cn.com/problems/3sum|
+|121. 买卖股票的最佳时机|20|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
+|103. 二叉树的锯齿形层次遍历|19|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal|
+|146. LRU缓存机制|19|https://leetcode-cn.com/problems/lru-cache|
+|105. 从前序与中序遍历序列构造二叉树|16|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
+|215. 数组中的第K个最大元素|15|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
+|206. 反转链表|15|https://leetcode-cn.com/problems/reverse-linked-list|
+|199. 二叉树的右视图|15|https://leetcode-cn.com/problems/binary-tree-right-side-view|
 |234. 回文链表|12|https://leetcode-cn.com/problems/palindrome-linked-list|
-|215. 数组中的第K个最大元素|11|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
-|105. 从前序与中序遍历序列构造二叉树|11|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal|
-|160. 相交链表|10|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|42. 接雨水|12|https://leetcode-cn.com/problems/trapping-rain-water|
+|54. 螺旋矩阵|11|https://leetcode-cn.com/problems/spiral-matrix|
+|21. 合并两个有序链表|11|https://leetcode-cn.com/problems/merge-two-sorted-lists|
 |124. 二叉树中的最大路径和|10|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum|
+|160. 相交链表|10|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
+|69. x 的平方根|10|https://leetcode-cn.com/problems/sqrtx|
+|1. 两数之和|9|https://leetcode-cn.com/problems/two-sum|
+|23. 合并K个排序链表|9|https://leetcode-cn.com/problems/merge-k-sorted-lists|
 |155. 最小栈|9|https://leetcode-cn.com/problems/min-stack|
-|21. 合并两个有序链表|9|https://leetcode-cn.com/problems/merge-two-sorted-lists|
-|69. x 的平方根|8|https://leetcode-cn.com/problems/sqrtx|
-|236. 二叉树的最近公共祖先|8|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
-|1. 两数之和|8|https://leetcode-cn.com/problems/two-sum|
+|236. 二叉树的最近公共祖先|9|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree|
+|415. 字符串相加|9|https://leetcode-cn.com/problems/add-strings|
 |141. 环形链表|8|https://leetcode-cn.com/problems/linked-list-cycle|
 |33. 搜索旋转排序数组|8|https://leetcode-cn.com/problems/search-in-rotated-sorted-array|
+|补充题1. 排序奇升偶降链表|8|https://leetcode-cn.com/problems/https://zhuanlan.zhihu.com/p/311113031|
+|41. 缺失的第一个正数|8|https://leetcode-cn.com/problems/first-missing-positive|
+|143. 重排链表|7|https://leetcode-cn.com/problems/reorder-list|
 |98. 验证二叉搜索树|7|https://leetcode-cn.com/problems/validate-binary-search-tree|
-|41. 缺失的第一个正数|7|https://leetcode-cn.com/problems/first-missing-positive|
-|415. 字符串相加|7|https://leetcode-cn.com/problems/add-strings|
-|54. 螺旋矩阵|7|https://leetcode-cn.com/problems/spiral-matrix|
-|23. 合并K个排序链表|7|https://leetcode-cn.com/problems/merge-k-sorted-lists|
-|114. 二叉树展开为链表|6|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
 |2. 两数相加|6|https://leetcode-cn.com/problems/add-two-numbers|
 |24. 两两交换链表中的节点|6|https://leetcode-cn.com/problems/swap-nodes-in-pairs|
 |101. 对称二叉树|6|https://leetcode-cn.com/problems/symmetric-tree|
-|143. 重排链表|6|https://leetcode-cn.com/problems/reorder-list|
+|20. 有效的括号|6|https://leetcode-cn.com/problems/valid-parentheses|
+|148. 排序链表|6|https://leetcode-cn.com/problems/sort-list|
+|958. 二叉树的完全性检验|6|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
 |470. 用 Rand7() 实现 Rand10()|6|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
 |102. 二叉树的层序遍历|6|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
-|56. 合并区间|5|https://leetcode-cn.com/problems/merge-intervals|
-|198. 打家劫舍|5|https://leetcode-cn.com/problems/house-robber|
+|114. 二叉树展开为链表|6|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list|
+|56. 合并区间|6|https://leetcode-cn.com/problems/merge-intervals|
 |110. 平衡二叉树|5|https://leetcode-cn.com/problems/balanced-binary-tree|
+|200. 岛屿数量|5|https://leetcode-cn.com/problems/number-of-islands|
 |122. 买卖股票的最佳时机 II|5|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii|
-|20. 有效的括号|5|https://leetcode-cn.com/problems/valid-parentheses|
-|148. 排序链表|5|https://leetcode-cn.com/problems/sort-list|
+|补充题2. 圆环回原点问题|5|https://zhuanlan.zhihu.com/p/338806463|
+|76. 最小覆盖子串|5|https://leetcode-cn.com/problems/minimum-window-substring|
+|518. 零钱兑换 II|5|https://leetcode-cn.com/problems/coin-change-2|
+|53. 最大子序和|5|https://leetcode-cn.com/problems/maximum-subarray|
 |31. 下一个排列|5|https://leetcode-cn.com/problems/next-permutation|
 |113. 路径总和 II|5|https://leetcode-cn.com/problems/path-sum-ii|
 |300. 最长上升子序列|5|https://leetcode-cn.com/problems/longest-increasing-subsequence|
+|198. 打家劫舍|5|https://leetcode-cn.com/problems/house-robber|
+|46. 全排列|5|https://leetcode-cn.com/problems/permutations|
+|543. 二叉树的直径|5|https://leetcode-cn.com/problems/diameter-of-binary-tree|
+|322. 零钱兑换|4|https://leetcode-cn.com/problems/coin-change|
+|739. 每日温度|4|https://leetcode-cn.com/problems/daily-temperatures|
+|142. 环形链表 II|4|https://leetcode-cn.com/problems/linked-list-cycle-ii|
+|560. 和为K的子数组|4|https://leetcode-cn.com/problems/subarray-sum-equals-k|
+|670. 最大交换|4|https://leetcode-cn.com/problems/maximum-swap|
+|128. 最长连续序列|4|https://leetcode-cn.com/problems/longest-consecutive-sequence|
+|240. 搜索二维矩阵 II|4|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|287. 寻找重复数|4|https://leetcode-cn.com/problems/find-the-duplicate-number|
+|92. 反转链表 II|4|https://leetcode-cn.com/problems/reverse-linked-list-ii|
+|232. 用栈实现队列|4|https://leetcode-cn.com/problems/implement-queue-using-stacks|
+|662. 二叉树最大宽度|4|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
 |48. 旋转图像|4|https://leetcode-cn.com/problems/rotate-image|
 |88. 合并两个有序数组|4|https://leetcode-cn.com/problems/merge-sorted-array|
 |162. 寻找峰值|4|https://leetcode-cn.com/problems/find-peak-element|
 |151. 翻转字符串里的单词|4|https://leetcode-cn.com/problems/reverse-words-in-a-string|
 |528. 按权重随机选择|4|https://leetcode-cn.com/problems/random-pick-with-weight|
-|543. 二叉树的直径|4|https://leetcode-cn.com/problems/diameter-of-binary-tree|
-|46. 全排列|4|https://leetcode-cn.com/problems/permutations|
-|200. 岛屿数量|4|https://leetcode-cn.com/problems/number-of-islands|
-|322. 零钱兑换|4|https://leetcode-cn.com/problems/coin-change|
-|560. 和为K的子数组|4|https://leetcode-cn.com/problems/subarray-sum-equals-k|
-|739. 每日温度|4|https://leetcode-cn.com/problems/daily-temperatures|
-|142. 环形链表 II|4|https://leetcode-cn.com/problems/linked-list-cycle-ii|
-|518. 零钱兑换 II|4|https://leetcode-cn.com/problems/coin-change-2|
-|128. 最长连续序列|4|https://leetcode-cn.com/problems/longest-consecutive-sequence|
-|670. 最大交换|4|https://leetcode-cn.com/problems/maximum-swap|
-|958. 二叉树的完全性检验|4|https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree|
-|92. 反转链表 II|4|https://leetcode-cn.com/problems/reverse-linked-list-ii|
-|287. 寻找重复数|4|https://leetcode-cn.com/problems/find-the-duplicate-number|
-|232. 用栈实现队列|3|https://leetcode-cn.com/problems/implement-queue-using-stacks|
-|79. 单词搜索|3|https://leetcode-cn.com/problems/word-search|
+|39. 组合总和|4|https://leetcode-cn.com/problems/combination-sum|
 |108. 将有序数组转换为二叉搜索树|3|https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree|
-|32. 最长有效括号|3|https://leetcode-cn.com/problems/longest-valid-parentheses|
-|53. 最大子序和|3|https://leetcode-cn.com/problems/maximum-subarray|
 |83. 删除排序链表中的重复元素|3|https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list|
+|32. 最长有效括号|3|https://leetcode-cn.com/problems/longest-valid-parentheses|
 |210. 课程表 II|3|https://leetcode-cn.com/problems/course-schedule-ii|
-|76. 最小覆盖子串|3|https://leetcode-cn.com/problems/minimum-window-substring|
 |70. 爬楼梯|3|https://leetcode-cn.com/problems/climbing-stairs|
-|240. 搜索二维矩阵 II|3|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|
+|138. 复制带随机指针的链表|3|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
 |剑指 Offer 22. 链表中倒数第k个节点|3|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
+|1143. 最长公共子序列|3|https://leetcode-cn.com/problems/longest-common-subsequence|
+|221. 最大正方形|3|https://leetcode-cn.com/problems/maximal-square|
 |704. 二分查找|3|https://leetcode-cn.com/problems/binary-search|
+|79. 单词搜索|3|https://leetcode-cn.com/problems/word-search|
 |129. 求根到叶子节点数字之和|3|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers|
-|50. Pow(x, n)|2|https://leetcode-cn.com/problems/powx-n|
-|340. 至多包含 K 个不同字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters|
-|188. 买卖股票的最佳时机 IV|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv|
-|147. 对链表进行插入排序|2|https://leetcode-cn.com/problems/insertion-sort-list|
-|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
-|394. 字符串解码|2|https://leetcode-cn.com/problems/decode-string|
-|104. 二叉树的最大深度|2|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
-|460. LFU缓存|2|https://leetcode-cn.com/problems/lfu-cache|
-|5. 最长回文子串|2|https://leetcode-cn.com/problems/longest-palindromic-substring|
-|94. 二叉树的中序遍历|2|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
-|39. 组合总和|2|https://leetcode-cn.com/problems/combination-sum|
-|328. 奇偶链表|2|https://leetcode-cn.com/problems/odd-even-linked-list|
-|264. 丑数 II|2|https://leetcode-cn.com/problems/ugly-number-ii|
-|剑指 Offer 42. 连续子数组的最大和|2|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
-|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
+|695. 岛屿的最大面积|3|https://leetcode-cn.com/problems/max-area-of-island|
+|94. 二叉树的中序遍历|3|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
+|104. 二叉树的最大深度|3|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree|
 |45. 跳跃游戏 II|2|https://leetcode-cn.com/problems/jump-game-ii|
 |19. 删除链表的倒数第N个节点|2|https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list|
-|722. 删除注释|2|https://leetcode-cn.com/problems/remove-comments|
+|59. 螺旋矩阵 II|2|https://leetcode-cn.com/problems/spiral-matrix-ii|
+|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes|
 |139. 单词拆分|2|https://leetcode-cn.com/problems/word-break|
 |剑指 Offer 19. 正则表达式匹配|2|https://leetcode-cn.com/problems/zheng-ze-biao-da-shi-pi-pei-lcof|
 |398. 随机数索引|2|https://leetcode-cn.com/problems/random-pick-index|
 |134. 加油站|2|https://leetcode-cn.com/problems/gas-station|
-|503. 下一个更大元素 II|2|https://leetcode-cn.com/problems/next-greater-element-ii|
+|64. 最小路径和|2|https://leetcode-cn.com/problems/minimum-path-sum|
+|402. 移掉K位数字|2|https://leetcode-cn.com/problems/remove-k-digits|
 |71. 简化路径|2|https://leetcode-cn.com/problems/simplify-path|
 |99. 恢复二叉搜索树|2|https://leetcode-cn.com/problems/recover-binary-search-tree|
+|404. 左叶子之和|2|https://leetcode-cn.com/problems/sum-of-left-leaves|
 |224. 基本计算器|2|https://leetcode-cn.com/problems/basic-calculator|
-|208. 实现 Trie (前缀树)|2|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|503. 下一个更大元素 II|2|https://leetcode-cn.com/problems/next-greater-element-ii|
 |862. 和至少为 K 的最短子数组|2|https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k|
-|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
-|22. 括号生成|2|https://leetcode-cn.com/problems/generate-parentheses|
-|138. 复制带随机指针的链表|2|https://leetcode-cn.com/problems/copy-list-with-random-pointer|
-|剑指 Offer 61. 扑克牌中的顺子|2|https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof|
-|668. 乘法表中第k小的数|2|https://leetcode-cn.com/problems/kth-smallest-number-in-multiplication-table|
 |86. 分隔链表|2|https://leetcode-cn.com/problems/partition-list|
+|61. 旋转链表|2|https://leetcode-cn.com/problems/rotate-list|
+|153. 寻找旋转排序数组中的最小值|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
+|208. 实现 Trie (前缀树)|2|https://leetcode-cn.com/problems/implement-trie-prefix-tree|
+|剑指 Offer 61. 扑克牌中的顺子|2|https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof|
+|22. 括号生成|2|https://leetcode-cn.com/problems/generate-parentheses|
+|668. 乘法表中第k小的数|2|https://leetcode-cn.com/problems/kth-smallest-number-in-multiplication-table|
+|785. 判断二分图|2|https://leetcode-cn.com/problems/is-graph-bipartite|
 |剑指 Offer 54. 二叉搜索树的第k大节点|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
-|221. 最大正方形|2|https://leetcode-cn.com/problems/maximal-square|
 |135. 分发糖果|2|https://leetcode-cn.com/problems/candy|
 |剑指 Offer 36. 二叉搜索树与双向链表|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof|
-|662. 二叉树最大宽度|2|https://leetcode-cn.com/problems/maximum-width-of-binary-tree|
-|785. 判断二分图|2|https://leetcode-cn.com/problems/is-graph-bipartite|
-|515. 在每个树行中找最大值|1|https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row|
-|895. 最大频率栈|1|https://leetcode-cn.com/problems/maximum-frequency-stack|
-|1147. 段式回文|1|https://leetcode-cn.com/problems/longest-chunked-palindrome-decomposition|
-|剑指 Offer 10- II. 青蛙跳台阶问题|1|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
-|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
-|994. 腐烂的橘子|1|https://leetcode-cn.com/problems/rotting-oranges|
-|173. 二叉搜索树迭代器|1|https://leetcode-cn.com/problems/binary-search-tree-iterator|
-|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
-|100. 相同的树|1|https://leetcode-cn.com/problems/same-tree|
-|4. 寻找两个正序数组的中位数|1|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
-|1254. 统计封闭岛屿的数目|1|https://leetcode-cn.com/problems/number-of-closed-islands|
-|剑指 Offer 67. 把字符串转换成整数|1|https://leetcode-cn.com/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof|
-|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
-|344. 反转字符串|1|https://leetcode-cn.com/problems/reverse-string|
-|112. 路径总和|1|https://leetcode-cn.com/problems/path-sum|
-|剑指 Offer 25. 合并两个排序的链表|1|https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof|
-|277. 搜寻名人|1|https://leetcode-cn.com/problems/find-the-celebrity|
-|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
-|剑指 Offer 52. 两个链表的第一个公共节点|1|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
-|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
-|694. 不同岛屿的数量|1|https://leetcode-cn.com/problems/number-of-distinct-islands|
-|面试题 03.05. 栈排序|1|https://leetcode-cn.com/problems/sort-of-stacks-lcci|
-|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
-|347. 前 K 个高频元素|1|https://leetcode-cn.com/problems/top-k-frequent-elements|
-|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
-|剑指 Offer 38. 字符串的排列|1|https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof|
-|468. 验证IP地址|1|https://leetcode-cn.com/problems/validate-ip-address|
-|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
-|67. 二进制求和|1|https://leetcode-cn.com/problems/add-binary|
-|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
-|416. 分割等和子集|1|https://leetcode-cn.com/problems/partition-equal-subset-sum|
-|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof|
-|329. 矩阵中的最长递增路径|1|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
-|37. 解数独|1|https://leetcode-cn.com/problems/sudoku-solver|
-|1363. 形成三的最大倍数|1|https://leetcode-cn.com/problems/largest-multiple-of-three|
-|842. 将数组拆分成斐波那契序列|1|https://leetcode-cn.com/problems/split-array-into-fibonacci-sequence|
-|321. 拼接最大数|1|https://leetcode-cn.com/problems/create-maximum-number|
-|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
-|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
-|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
-|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
+|50. Pow(x, n)|2|https://leetcode-cn.com/problems/powx-n|
+|340. 至多包含 K 个不同字符的最长子串|2|https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters|
+|147. 对链表进行插入排序|2|https://leetcode-cn.com/problems/insertion-sort-list|
+|188. 买卖股票的最佳时机 IV|2|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv|
+|4. 寻找两个正序数组的中位数|2|https://leetcode-cn.com/problems/median-of-two-sorted-arrays|
+|226. 翻转二叉树|2|https://leetcode-cn.com/problems/invert-binary-tree|
+|5. 最长回文子串|2|https://leetcode-cn.com/problems/longest-palindromic-substring|
+|112. 路径总和|2|https://leetcode-cn.com/problems/path-sum|
+|剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof|
+|面试题 03.05. 栈排序|2|https://leetcode-cn.com/problems/sort-of-stacks-lcci|
+|460. LFU缓存|2|https://leetcode-cn.com/problems/lfu-cache|
+|722. 删除注释|2|https://leetcode-cn.com/problems/remove-comments|
+|394. 字符串解码|2|https://leetcode-cn.com/problems/decode-string|
+|264. 丑数 II|2|https://leetcode-cn.com/problems/ugly-number-ii|
+|剑指 Offer 42. 连续子数组的最大和|2|https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof|
+|328. 奇偶链表|2|https://leetcode-cn.com/problems/odd-even-linked-list|
 |166. 分数到小数|1|https://leetcode-cn.com/problems/fraction-to-recurring-decimal|
 |456. 132模式|1|https://leetcode-cn.com/problems/132-pattern|
+|91. 解码方法|1|https://leetcode-cn.com/problems/decode-ways|
 |剑指 Offer 21. 调整数组顺序使奇数位于偶数前面|1|https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof|
 |1299. 将每个元素替换为右侧最大元素|1|https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side|
-|1047. 删除字符串中的所有相邻重复项|1|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
-|325. 和等于 k 的最长子数组长度|1|https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k|
+|剑指 Offer 46. 把数字翻译成字符串|1|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof|
+|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof|
 |876. 链表的中间结点|1|https://leetcode-cn.com/problems/middle-of-the-linked-list|
 |637. 二叉树的层平均值|1|https://leetcode-cn.com/problems/average-of-levels-in-binary-tree|
-|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
-|剑指 Offer 58 - II. 左旋转字符串|1|https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof|
+|525. 连续数组|1|https://leetcode-cn.com/problems/contiguous-array|
 |977. 有序数组的平方|1|https://leetcode-cn.com/problems/squares-of-a-sorted-array|
 |面试题 08.12. 八皇后|1|https://leetcode-cn.com/problems/eight-queens-lcci|
+|1047. 删除字符串中的所有相邻重复项|1|https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string|
+|325. 和等于 k 的最长子数组长度|1|https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k|
 |8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi|
-|91. 解码方法|1|https://leetcode-cn.com/problems/decode-ways|
-|1156. 单字符重复子串的最大长度|1|https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring|
-|59. 螺旋矩阵 II|1|https://leetcode-cn.com/problems/spiral-matrix-ii|
-|剑指 Offer 68 - II. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof|
-|40. 组合总和 II|1|https://leetcode-cn.com/problems/combination-sum-ii|
-|402. 移掉K位数字|1|https://leetcode-cn.com/problems/remove-k-digits|
-|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
-|64. 最小路径和|1|https://leetcode-cn.com/problems/minimum-path-sum|
-|525. 连续数组|1|https://leetcode-cn.com/problems/contiguous-array|
-|449. 序列化和反序列化二叉搜索树|1|https://leetcode-cn.com/problems/serialize-and-deserialize-bst|
-|93. 复原IP地址|1|https://leetcode-cn.com/problems/restore-ip-addresses|
 |72. 编辑距离|1|https://leetcode-cn.com/problems/edit-distance|
-|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|1156. 单字符重复子串的最大长度|1|https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring|
+|807. 保持城市天际线|1|https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline|
+|剑指 Offer 68 - II. 二叉树的最近公共祖先|1|https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof|
+|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof|
 |154. 寻找旋转排序数组中的最小值 II|1|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii|
-|61. 旋转链表|1|https://leetcode-cn.com/problems/rotate-list|
 |204. 计数质数|1|https://leetcode-cn.com/problems/count-primes|
+|449. 序列化和反序列化二叉搜索树|1|https://leetcode-cn.com/problems/serialize-and-deserialize-bst|
+|78. 子集|1|https://leetcode-cn.com/problems/subsets|
+|40. 组合总和 II|1|https://leetcode-cn.com/problems/combination-sum-ii|
+|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
+|93. 复原IP地址|1|https://leetcode-cn.com/problems/restore-ip-addresses|
+|1095. 山脉数组中查找目标值|1|https://leetcode-cn.com/problems/find-in-mountain-array|
+|145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal|
+|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
+|295. 数据流的中位数|1|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|279. 完全平方数|1|https://leetcode-cn.com/problems/perfect-squares|
 |剑指 Offer 18. 删除链表的节点|1|https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof|
 |107. 二叉树的层次遍历 II|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii|
-|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum|
-|912. 排序数组|1|https://leetcode-cn.com/problems/sort-an-array|
 |剑指 Offer 24. 反转链表|1|https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof|
-|1095. 山脉数组中查找目标值|1|https://leetcode-cn.com/problems/find-in-mountain-array|
 |523. 连续的子数组和|1|https://leetcode-cn.com/problems/continuous-subarray-sum|
-|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
-|1139. 最大的以 1 为边界的正方形|1|https://leetcode-cn.com/problems/largest-1-bordered-square|
+|17. 电话号码的字母组合|1|https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number|
+|912. 排序数组|1|https://leetcode-cn.com/problems/sort-an-array|
 |剑指 Offer 11. 旋转数组的最小数字|1|https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof|
 |209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum|
 |剑指 Offer 45. 把数组排成最小的数|1|https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof|
-|123. 买卖股票的最佳时机 III|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii|
 |349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays|
-|295. 数据流的中位数|1|https://leetcode-cn.com/problems/find-median-from-data-stream|
+|440. 字典序的第K小数字|1|https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order|
 |410. 分割数组的最大值|1|https://leetcode-cn.com/problems/split-array-largest-sum|
-|695. 岛屿的最大面积|1|https://leetcode-cn.com/problems/max-area-of-island|
+|230. 二叉搜索树中第K小的元素|1|https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst|
+|1139. 最大的以 1 为边界的正方形|1|https://leetcode-cn.com/problems/largest-1-bordered-square|
+|421. 数组中两个数的最大异或值|1|https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array|
+|97. 交错字符串|1|https://leetcode-cn.com/problems/interleaving-string|
+|剑指 Offer 05. 替换空格|1|https://leetcode-cn.com/problems/ti-huan-kong-ge-lcof|
 |951. 翻转等价二叉树|1|https://leetcode-cn.com/problems/flip-equivalent-binary-trees|
-|421. 数组中两个数的最大异或值|1|https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array|
+|剑指 Offer 10- II. 青蛙跳台阶问题|1|https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof|
+|62. 不同路径|1|https://leetcode-cn.com/problems/unique-paths|
+|994. 腐烂的橘子|1|https://leetcode-cn.com/problems/rotting-oranges|
+|718. 最长重复子数组|1|https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray|
+|11. 盛最多水的容器|1|https://leetcode-cn.com/problems/container-with-most-water|
+|515. 在每个树行中找最大值|1|https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row|
+|895. 最大频率栈|1|https://leetcode-cn.com/problems/maximum-frequency-stack|
+|1147. 段式回文|1|https://leetcode-cn.com/problems/longest-chunked-palindrome-decomposition|
+|100. 相同的树|1|https://leetcode-cn.com/problems/same-tree|
+|1254. 统计封闭岛屿的数目|1|https://leetcode-cn.com/problems/number-of-closed-islands|
+|468. 验证IP地址|1|https://leetcode-cn.com/problems/validate-ip-address|
+|剑指 Offer 67. 把字符串转换成整数|1|https://leetcode-cn.com/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof|
+|344. 反转字符串|1|https://leetcode-cn.com/problems/reverse-string|
+|1669. 合并两个链表|1|https://leetcode-cn.com/problems/merge-in-between-linked-lists|
+|173. 二叉搜索树迭代器|1|https://leetcode-cn.com/problems/binary-search-tree-iterator|
+|277. 搜寻名人|1|https://leetcode-cn.com/problems/find-the-celebrity|
+|701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree|
+|剑指 Offer 52. 两个链表的第一个公共节点|1|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof|
+|329. 矩阵中的最长递增路径|1|https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix|
+|125. 验证回文串|1|https://leetcode-cn.com/problems/valid-palindrome|
+|10. 正则表达式匹配|1|https://leetcode-cn.com/problems/regular-expression-matching|
+|694. 不同岛屿的数量|1|https://leetcode-cn.com/problems/number-of-distinct-islands|
+|剑指 Offer 25. 合并两个排序的链表|1|https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof|
+|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
+|剑指 Offer 38. 字符串的排列|1|https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof|
+|321. 拼接最大数|1|https://leetcode-cn.com/problems/create-maximum-number|
+|111. 二叉树的最小深度|1|https://leetcode-cn.com/problems/minimum-depth-of-binary-tree|
+|144. 二叉树的前序遍历|1|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
+|84. 柱状图中最大的矩形|1|https://leetcode-cn.com/problems/largest-rectangle-in-histogram|
+|169. 多数元素|1|https://leetcode-cn.com/problems/majority-element|
+|347. 前 K 个高频元素|1|https://leetcode-cn.com/problems/top-k-frequent-elements|
+|416. 分割等和子集|1|https://leetcode-cn.com/problems/partition-equal-subset-sum|
+|剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof|
+|202. 快乐数|1|https://leetcode-cn.com/problems/happy-number|
+|37. 解数独|1|https://leetcode-cn.com/problems/sudoku-solver|
+|67. 二进制求和|1|https://leetcode-cn.com/problems/add-binary|
+|297. 二叉树的序列化与反序列化|1|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree|
+|842. 将数组拆分成斐波那契序列|1|https://leetcode-cn.com/problems/split-array-into-fibonacci-sequence|
+|120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle|
+|剑指 Offer 58 - II. 左旋转字符串|1|https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof|
+|剑指 Offer 09. 用两个栈实现队列|1|https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof|
+|889. 根据前序和后序遍历构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal|
+|剑指 Offer 48. 最长不含重复字符的子字符串|1|https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof|
+|1363. 形成三的最大倍数|1|https://leetcode-cn.com/problems/largest-multiple-of-three|