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| 题目 | 题解 | 难度 | 推荐指数 |
| ------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ---------- |
| [3. 无重复字符的最长子串 ](https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/solution/shua-chuan-lc-shuang-zhi-zhen-ha-xi-biao-q08m/) | 中等 | 🤩🤩🤩🤩🤩 |
| [11. 盛最多水的容器 ](https://leetcode-cn.com/problems/container-with-most-water/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/container-with-most-water/solution/shua-chuan-lc-shuang-zhi-zhen-tan-xin-ji-52gf/) | 中等 | 🤩🤩🤩🤩🤩 |
| [15. 三数之和](https://leetcode-cn.com/problems/3sum/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/3sum/solution/shua-chuan-lc-pai-xu-shuang-zhi-zhen-jie-cd8r/) | 中等 | 🤩🤩🤩🤩🤩 |
| [16. 最接近的三数之和](https://leetcode-cn.com/problems/3sum-closest/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/3sum-closest/solution/shua-chuan-lc-pai-xu-shuang-zhi-zhen-jie-p2ou/) | 中等 | 🤩🤩🤩🤩 |
| [18. 四数之和](https://leetcode-cn.com/problems/4sum/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/4sum/solution/shua-chuan-lc-pai-xu-shuang-zhi-zhen-jie-dqx7/) | 中等 | 🤩🤩🤩🤩 |
| [19. 删除链表的倒数第 N 个结点](https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/solution/shua-chuan-lc-lian-biao-kuai-man-zhi-zhe-1gs1/) | 中等 | 🤩🤩🤩🤩🤩 |
| [26. 删除有序数组中的重复项](https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/solution/shua-chuan-lc-jian-ji-shuang-zhi-zhen-ji-2eg8) | 简单 | 🤩🤩🤩🤩 |
| [27. 移除元素](https://leetcode-cn.com/problems/remove-element/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/remove-element/solution/shua-chuan-lc-shuang-bai-shuang-zhi-zhen-mzt8/) | 简单 | 🤩🤩🤩🤩 |
| [45. 跳跃游戏 II](https://leetcode-cn.com/problems/jump-game-ii/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/jump-game-ii/solution/xiang-jie-dp-tan-xin-shuang-zhi-zhen-jie-roh4/) | 中等 | 🤩🤩🤩🤩 |
| [88. 合并两个有序数组](https://leetcode-cn.com/problems/merge-sorted-array/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/merge-sorted-array/solution/gong-shui-san-xie-yi-ti-san-jie-shuang-z-47gj/) | 简单 | 🤩🤩🤩 |
| [345. 反转字符串中的元音字母](https://leetcode-cn.com/problems/reverse-vowels-of-a-string/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/reverse-vowels-of-a-string/solution/gong-shui-san-xie-note-bie-pian-shuang-z-c8ii/) | 简单 | 🤩🤩🤩 |
| [395. 至少有 K 个重复字符的最长子串](https://leetcode-cn.com/problems/longest-substring-with-at-least-k-repeating-characters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-substring-with-at-least-k-repeating-characters/solution/xiang-jie-mei-ju-shuang-zhi-zhen-jie-fa-50ri1/) | 中等 | 🤩🤩🤩 |
| [413. 等差数列划分](https://leetcode-cn.com/problems/arithmetic-slices/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/arithmetic-slices/solution/gong-shui-san-xie-shuang-zhi-zhen-qiu-ji-ef1q/) | 中等 | 🤩🤩🤩🤩 |
| [424. 替换后的最长重复字符](https://leetcode-cn.com/problems/longest-repeating-character-replacement/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-repeating-character-replacement/solution/ping-ping-wu-qi-shuang-zhi-zhen-da-bai-h-fgif/) | 中等 | 🤩🤩🤩🤩 |
| [436. 寻找右区间](https://leetcode.cn/problems/find-right-interval/) | [LeetCode 题解链接](https://leetcode.cn/problems/find-right-interval/solution/by-ac_oier-sijp/) | 中等 | 🤩🤩🤩🤩 |
| [438. 找到字符串中所有字母异位词](https://leetcode-cn.com/problems/find-all-anagrams-in-a-string/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/find-all-anagrams-in-a-string/solution/gong-shui-san-xie-shuang-zhi-zhen-shi-xi-t5hc/) | 中等 | 🤩🤩🤩🤩 |
| [443. 压缩字符串](https://leetcode-cn.com/problems/string-compression/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/string-compression/solution/gong-shui-san-xie-shuang-zhi-zhen-yuan-d-bppu/) | 中等 | 🤩🤩🤩🤩 |
| [468. 验证IP地址](https://leetcode.cn/problems/validate-ip-address/) | [LeetCode 题解链接](https://leetcode.cn/problems/validate-ip-address/solution/by-ac_oier-s217/) | 中等 | 🤩🤩🤩 |
| [475. 供暖器](https://leetcode-cn.com/problems/heaters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/heaters/solution/gong-shui-san-xie-er-fen-shuang-zhi-zhen-mys4/) | 中等 | 🤩🤩🤩🤩 |
| [485. 最大连续 1 的个数](https://leetcode-cn.com/problems/max-consecutive-ones/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/max-consecutive-ones/solution/you-shi-yi-tian-gao-pin-jian-dan-ti-ni-d-avj1/) | 简单 | 🤩🤩🤩🤩 |
| [519. 随机翻转矩阵](https://leetcode-cn.com/problems/random-flip-matrix/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/random-flip-matrix/solution/gong-shui-san-xie-note-bie-pian-yi-ti-sh-e6gi/) | 中等 | 🤩🤩🤩🤩 |
| [524. 通过删除字母匹配到字典里最长单词](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/solution/gong-shui-san-xie-xiang-jie-pai-xu-shuan-qi20/) | 中等 | 🤩🤩🤩🤩 |
| [532. 数组中的 k-diff 数对](https://leetcode.cn/problems/k-diff-pairs-in-an-array/) | [LeetCode 题解链接](https://leetcode.cn/problems/k-diff-pairs-in-an-array/solution/by-ac_oier-ap3v/) | 中等 | 🤩🤩🤩🤩 |
| [556. 下一个更大元素 III](https://leetcode.cn/problems/next-greater-element-iii/) | [LeetCode 题解链接](https://leetcode.cn/problems/next-greater-element-iii/solution/by-ac_oier-99bj/) | 中等 | 🤩🤩🤩🤩 |
| [581. 最短无序连续子数组](https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray/solution/gong-shui-san-xie-yi-ti-shuang-jie-shuan-e1le/) | 中等 | 🤩🤩🤩🤩 |
| [594. 最长和谐子序列](https://leetcode-cn.com/problems/longest-harmonious-subsequence/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-harmonious-subsequence/solution/gong-shui-san-xie-yi-ti-shuang-jie-hua-d-quuh/) | 简单 | 🤩🤩🤩🤩 |
| [611. 有效三角形的个数](https://leetcode-cn.com/problems/valid-triangle-number/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/valid-triangle-number/solution/gong-shui-san-xie-yi-ti-san-jie-jian-dan-y1we/) | 中等 | 🤩🤩🤩🤩 |
| [633. 平方数之和](https://leetcode-cn.com/problems/sum-of-square-numbers/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/sum-of-square-numbers/solution/gong-shui-san-xie-yi-ti-san-jie-mei-ju-s-7qi5/) | 简单 | 🤩🤩 |
| [640. 求解方程](https://leetcode.cn/problems/solve-the-equation/) | [LeetCode 题解链接](https://leetcode.cn/problems/solve-the-equation/solution/by-ac_oier-fvee/) | 中等 | 🤩🤩🤩🤩 |
| [653. 两数之和 IV - 输入 BST](https://leetcode-cn.com/problems/two-sum-iv-input-is-a-bst/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/two-sum-iv-input-is-a-bst/solution/by-ac_oier-zr4o/) | 简单 | 🤩🤩🤩🤩 |
| [658. 找到 K 个最接近的元素](https://leetcode.cn/problems/find-k-closest-elements/) | [LeetCode 题解链接](https://leetcode.cn/problems/find-k-closest-elements/solution/by-ac_oier-8xh5/) | 中等 | 🤩🤩🤩🤩 |
| [719. 找出第 K 小的数对距离](https://leetcode.cn/problems/find-k-th-smallest-pair-distance/) | [LeetCode 题解链接](https://leetcode.cn/problems/find-k-th-smallest-pair-distance/solution/by-ac_oier-o4if/) | 困难 | 🤩🤩🤩🤩 |
| [777. 在LR字符串中交换相邻字符](https://leetcode.cn/problems/swap-adjacent-in-lr-string/) | [LeetCode 题解链接](https://leetcode.cn/problems/swap-adjacent-in-lr-string/solution/by-ac_oier-ye71/) | 中等 | 🤩🤩🤩🤩 |
| [786. 第 K 个最小的素数分数](https://leetcode-cn.com/problems/k-th-smallest-prime-fraction/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/k-th-smallest-prime-fraction/solution/gong-shui-san-xie-yi-ti-shuang-jie-you-x-8ymk/) | 中等 | 🤩🤩🤩 |
| [825. 适龄的朋友](https://leetcode-cn.com/problems/friends-of-appropriate-ages/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/friends-of-appropriate-ages/solution/gong-shui-san-xie-yi-ti-shuang-jie-pai-x-maa8/) | 中等 | 🤩🤩🤩🤩 |
| [832. 翻转图像](https://leetcode-cn.com/problems/flipping-an-image/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/flipping-an-image/solution/shuang-zhi-zhen-yi-bian-chu-li-huan-you-ik0v1/) | 简单 | 🤩🤩 |
| [838. 推多米诺](https://leetcode-cn.com/problems/push-dominoes/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/push-dominoes/solution/gong-shui-san-xie-yi-ti-shuang-jie-bfs-y-z52w/) | 中等 | 🤩🤩🤩🤩 |
| [881. 救生艇](https://leetcode-cn.com/problems/boats-to-save-people/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/boats-to-save-people/solution/gong-shui-san-xie-noxiang-xin-ke-xue-xi-hosg8/) | 中等 | 🤩🤩🤩🤩 |
| [905. 按奇偶排序数组](https://leetcode-cn.com/problems/sort-array-by-parity/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/sort-array-by-parity/solution/by-ac_oier-nuz7/) | 简单 | 🤩🤩🤩🤩 |
| [917. 仅仅反转字母](https://leetcode-cn.com/problems/reverse-only-letters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/reverse-only-letters/solution/gong-shui-san-xie-jian-dan-shuang-zhi-zh-xrpt/) | 简单 | 🤩🤩🤩🤩 |
| [930. 和相同的二元子数组](https://leetcode-cn.com/problems/binary-subarrays-with-sum/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/binary-subarrays-with-sum/solution/gong-shui-san-xie-yi-ti-shuang-jie-qian-hfoc0/) | 中等 | 🤩🤩🤩 |
| [942. 增减字符串匹配](https://leetcode.cn/problems/di-string-match/) | [LeetCode 题解链接](https://leetcode.cn/problems/di-string-match/solution/by-ac_oier-pvjk/) | 简单 | 🤩🤩🤩🤩 |
| [946. 验证栈序列](https://leetcode.cn/problems/validate-stack-sequences/) | [LeetCode 题解链接](https://leetcode.cn/problems/validate-stack-sequences/solution/by-ac_oier-84qd/) | 中等 | 🤩🤩🤩🤩 |
| [992. K 个不同整数的子数组](https://leetcode-cn.com/problems/subarrays-with-k-different-integers/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/subarrays-with-k-different-integers/solution/miao-dong-xi-lie-xiang-jie-shuang-zhi-zh-9k8w/) | 困难 | 🤩🤩🤩🤩 |
| [1004. 最大连续1的个数 III](https://leetcode-cn.com/problems/max-consecutive-ones-iii/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/max-consecutive-ones-iii/solution/san-chong-jie-fa-cong-dong-tai-gui-hua-d-gxks/) | 中等 | 🤩🤩🤩 |
| [1021. 删除最外层的括号](https://leetcode.cn/problems/remove-outermost-parentheses/) | [LeetCode 题解链接](https://leetcode.cn/problems/remove-outermost-parentheses/solution/by-ac_oier-jmxi/) | 简单 | 🤩🤩🤩🤩 |
| [1052. 爱生气的书店老板](https://leetcode-cn.com/problems/grumpy-bookstore-owner/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/grumpy-bookstore-owner/solution/hua-dong-chuang-kou-luo-ti-by-ac_oier-nunu/) | 中等 | 🤩🤩🤩 |
| [1089. 复写零](https://leetcode.cn/problems/duplicate-zeros/) | [LeetCode 题解链接](https://leetcode.cn/problems/duplicate-zeros/solution/by-ac_oier-zivq/) | 简单 | 🤩🤩🤩🤩 |
| [1092. 最短公共超序列](https://leetcode.cn/problems/shortest-common-supersequence/) | [LeetCode 题解链接](https://leetcode.cn/problems/shortest-common-supersequence/solution/by-ac_oier-s346/) | 困难 | 🤩🤩🤩 |
| [1221. 分割平衡字符串](https://leetcode-cn.com/problems/split-a-string-in-balanced-strings/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/split-a-string-in-balanced-strings/solution/gong-shui-san-xie-noxiang-xin-ke-xue-xi-wumnk/) | 简单 | 🤩🤩🤩🤩 |
| [1332. 删除回文子序列](https://leetcode-cn.com/problems/remove-palindromic-subsequences/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/remove-palindromic-subsequences/solution/gong-shui-san-xie-jian-dan-mo-ni-ti-by-a-0zwn/) | 简单 | 🤩🤩🤩🤩 |
| [1417. 重新格式化字符串](https://leetcode.cn/problems/reformat-the-string/) | [LeetCode 题解链接](https://leetcode.cn/problems/reformat-the-string/solution/by-ac_oier-uk8z/) | 简单 | 🤩🤩🤩🤩 |
| [1446. 连续字符](https://leetcode-cn.com/problems/consecutive-characters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/consecutive-characters/solution/gong-shui-san-xie-jian-dan-shuang-zhi-zh-xtv6/) | 简单 | 🤩🤩🤩🤩🤩 |
| [1455. 检查单词是否为句中其他单词的前缀](https://leetcode.cn/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/) | [LeetCode 题解链接](https://leetcode.cn/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence/solution/by-ac_oier-cfsi/) | 简单 | 🤩🤩🤩🤩🤩 |
| [1537. 最大得分](https://leetcode.cn/problems/get-the-maximum-score/) | [LeetCode 题解链接](https://leetcode.cn/problems/get-the-maximum-score/solution/by-ac_oier-ht78/) | 困难 | 🤩🤩🤩🤩 |
| [1592. 重新排列单词间的空格](https://leetcode.cn/problems/rearrange-spaces-between-words/) | [LeetCode 题解链接](https://leetcode.cn/problems/rearrange-spaces-between-words/solution/by-ac_oier-0f5h/) | 简单 | 🤩🤩🤩 |
| [1610. 可见点的最大数目](https://leetcode-cn.com/problems/maximum-number-of-visible-points/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/maximum-number-of-visible-points/solution/gong-shui-san-xie-qiu-ji-jiao-ji-he-ti-b-0bid/) | 困难 | 🤩🤩🤩🤩 |
| [1743. 从相邻元素对还原数组](https://leetcode-cn.com/problems/restore-the-array-from-adjacent-pairs/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/restore-the-array-from-adjacent-pairs/solution/gong-shui-san-xie-yi-ti-shuang-jie-dan-x-elpx/) | 中等 | 🤩🤩🤩🤩 |
| [1748. 唯一元素的和](https://leetcode-cn.com/problems/sum-of-unique-elements/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/sum-of-unique-elements/solution/gong-shui-san-xie-yi-ti-shuang-jie-pai-x-atnd/) | 简单 | 🤩🤩🤩🤩 |
| [1764. 通过连接另一个数组的子数组得到一个数组](https://leetcode-cn.com/problems/form-array-by-concatenating-subarrays-of-another-array/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/form-array-by-concatenating-subarrays-of-another-array/solution/clean-solutionni-jue-dui-neng-kan-dong-d-l4ts/) | 中等 | 🤩🤩🤩🤩 |
| [2000. 反转单词前缀](https://leetcode-cn.com/problems/reverse-prefix-of-word/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/reverse-prefix-of-word/solution/gong-shui-san-xie-jian-dan-shuang-zhi-zh-dp9u/) | 简单 | 🤩🤩🤩🤩 |
| [2024. 考试的最大困扰度](https://leetcode-cn.com/problems/maximize-the-confusion-of-an-exam/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/maximize-the-confusion-of-an-exam/solution/by-ac_oier-2rii/) | 中等 | 🤩🤩🤩🤩 |
| [2047. 句子中的有效单词数](https://leetcode-cn.com/problems/number-of-valid-words-in-a-sentence/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/number-of-valid-words-in-a-sentence/solution/gong-shui-san-xie-jian-dan-zi-fu-chuan-m-5pcz/) | 简单 | 🤩🤩🤩🤩 |
| [面试题 01.05. 一次编辑](https://leetcode.cn/problems/one-away-lcci/) | [LeetCode 题解链接](https://leetcode.cn/problems/one-away-lcci/solution/by-ac_oier-7ml0/) | 中等 | 🤩🤩🤩🤩 |
| [面试题 17.09. 第 k 个数](https://leetcode.cn/problems/get-kth-magic-number-lcci/) | [LeetCode 题解链接](https://leetcode.cn/problems/get-kth-magic-number-lcci/solution/by-ac_oier-2czm/) | 中等 | 🤩🤩🤩🤩🤩 |
| [面试题 17.11. 单词距离](https://leetcode.cn/problems/find-closest-lcci/) | [LeetCode 题解链接](https://leetcode.cn/problems/find-closest-lcci/solution/by-ac_oier-0hv9/) | 中等 | 🤩🤩🤩🤩 |
| 题目 | 题解 | 难度 | 推荐指数 |
| ------------------------------------------------------------ | ------------------------------------------------------------ | ---- | -------- |
| [41. 缺失的第一个正数](https://leetcode-cn.com/problems/first-missing-positive/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/first-missing-positive/solution/yan-ge-on-de-tong-pai-xu-si-lu-yi-ji-wei-wm8d/) | 困难 | 🤩🤩🤩 |
| [75. 颜色分类](https://leetcode.cn/problems/sort-colors/) | [LeetCode 题解链接](https://leetcode.cn/problems/sort-colors/solution/by-ac_oier-7lwk/) | 中等 | 🤩🤩🤩🤩🤩 |
| [220. 存在重复元素 III](https://leetcode-cn.com/problems/contains-duplicate-iii/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/contains-duplicate-iii/solution/gong-shui-san-xie-yi-ti-shuang-jie-hua-d-dlnv/) | 中等 | 🤩🤩🤩 |
| [268. 丢失的数字](https://leetcode-cn.com/problems/missing-number/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/missing-number/solution/gong-shui-san-xie-yi-ti-wu-jie-pai-xu-ji-te3s/) | 简单 | 🤩🤩🤩🤩 |
| [324. 摆动排序 II](https://leetcode.cn/problems/wiggle-sort-ii/) | [LeetCode 题解链接](https://leetcode.cn/problems/wiggle-sort-ii/solution/by-ac_oier-22bq/) | 中等 | 🤩🤩🤩🤩 |
| [406. 根据身高重建队列](https://leetcode.cn/problems/queue-reconstruction-by-height/) | [LeetCode 题解链接](https://leetcode.cn/problems/queue-reconstruction-by-height/solution/by-ac_oier-fda2/) | 中等 | 🤩🤩🤩 |
| [414. 第三大的数](https://leetcode-cn.com/problems/third-maximum-number/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/third-maximum-number/solution/gong-shui-san-xie-yi-ti-shuang-jie-pai-x-pmln/) | 中等 | 🤩🤩🤩🤩 |
| [448. 找到所有数组中消失的数字](https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array/solution/li-yong-tong-pai-xu-de-si-lu-ni-huan-ke-e3t4w/) | 简单 | 🤩🤩🤩 |
| [475. 供暖器](https://leetcode-cn.com/problems/heaters/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/heaters/solution/gong-shui-san-xie-er-fen-shuang-zhi-zhen-mys4/) | 中等 | 🤩🤩🤩🤩 |
| [506. 相对名次](https://leetcode-cn.com/problems/relative-ranks/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/relative-ranks/solution/gong-shui-san-xie-jian-dan-pai-xu-mo-ni-cmuzj/) | 简单 | 🤩🤩🤩🤩 |
| [524. 通过删除字母匹配到字典里最长单词](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/solution/gong-shui-san-xie-xiang-jie-pai-xu-shuan-qi20/) | 中等 | 🤩🤩🤩🤩 |
| [539. 最小时间差](https://leetcode-cn.com/problems/minimum-time-difference/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/minimum-time-difference/solution/gong-shui-san-xie-jian-dan-mo-ni-ti-by-a-eygg/) | 中等 | 🤩🤩🤩🤩 |
| [581. 最短无序连续子数组](https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray/solution/gong-shui-san-xie-yi-ti-shuang-jie-shuan-e1le/) | 中等 | 🤩🤩🤩🤩 |
| [611. 有效三角形的个数](https://leetcode-cn.com/problems/valid-triangle-number/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/valid-triangle-number/solution/gong-shui-san-xie-yi-ti-san-jie-jian-dan-y1we/) | 中等 | 🤩🤩🤩🤩 |
| [645. 错误的集合](https://leetcode-cn.com/problems/set-mismatch/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/set-mismatch/solution/gong-shui-san-xie-yi-ti-san-jie-ji-shu-s-vnr9/) | 简单 | 🤩🤩🤩 |
| [646. 最长数对链](https://leetcode.cn/problems/maximum-length-of-pair-chain/) | [LeetCode 题解链接](https://leetcode.cn/problems/maximum-length-of-pair-chain/solution/by-ac_oier-z91l/) | 中等 | 🤩🤩🤩🤩🤩 |
| [703. 数据流中的第 K 大元素](https://leetcode-cn.com/problems/kth-largest-element-in-a-stream/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/kth-largest-element-in-a-stream/solution/jian-da-ti-de-duo-chong-jie-fa-mou-pao-p-d1qi/) | 简单 | 🤩🤩🤩 |
| [825. 适龄的朋友](https://leetcode-cn.com/problems/friends-of-appropriate-ages/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/friends-of-appropriate-ages/solution/gong-shui-san-xie-yi-ti-shuang-jie-pai-x-maa8/) | 中等 | 🤩🤩🤩🤩 |
| [937. 重新排列日志文件](https://leetcode-cn.com/problems/reorder-data-in-log-files/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/reorder-data-in-log-files/solution/by-ac_oier-ap28/) | 简单 | 🤩🤩🤩🤩🤩 |
| [953. 验证外星语词典](https://leetcode.cn/problems/verifying-an-alien-dictionary/) | [LeetCode 题解链接](https://leetcode.cn/problems/verifying-an-alien-dictionary/solution/by-ac_oier-sxf1/) | 简单 | 🤩🤩🤩🤩 |
| [954. 二倍数对数组](https://leetcode-cn.com/problems/array-of-doubled-pairs/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/array-of-doubled-pairs/solution/by-ac_oier-d1z7/) | 中等 | 🤩🤩🤩 |
| [969. 煎饼排序](https://leetcode-cn.com/problems/pancake-sorting/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/pancake-sorting/solution/gong-shui-san-xie-mou-pao-pai-xu-yun-yon-c0mn/) | 中等 | 🤩🤩🤩🤩🤩 |
| [987. 二叉树的垂序遍历](https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/solution/gong-shui-san-xie-yi-ti-shuang-jie-dfs-h-wfm3/) | 困难 | 🤩🤩🤩🤩🤩 |
| [1051. 高度检查器](https://leetcode.cn/problems/height-checker/) | [LeetCode 题解链接](https://leetcode.cn/problems/height-checker/solution/by-ac_oier-8xoj/) | 简单 | 🤩🤩🤩🤩🤩 |
| [1331. 数组序号转换](https://leetcode.cn/problems/rank-transform-of-an-array/) | [LeetCode 题解链接](https://leetcode.cn/problems/rank-transform-of-an-array/solution/by-ac_oier-j70n/) | 简单 | 🤩🤩🤩🤩 |
| [1403. 非递增顺序的最小子序列](https://leetcode.cn/problems/minimum-subsequence-in-non-increasing-order/) | [LeetCode 题解链接](https://leetcode.cn/problems/minimum-subsequence-in-non-increasing-order/solution/by-ac_oier-766t/) | 简单 | 🤩🤩🤩🤩 |
| [1608. 特殊数组的特征值](https://leetcode.cn/problems/special-array-with-x-elements-greater-than-or-equal-x/) | [LeetCode 题解链接](https://leetcode.cn/problems/special-array-with-x-elements-greater-than-or-equal-x/solution/by-ac_oier-z525/) | 简单 | 🤩🤩🤩🤩🤩 |
| [1640. 能否连接形成数组](https://leetcode.cn/problems/check-array-formation-through-concatenation/) | [LeetCode 题解链接](https://leetcode.cn/problems/check-array-formation-through-concatenation/solution/by-ac_oier-3jqf/) | 简单 | 🤩🤩🤩🤩 |
| [1636. 按照频率将数组升序排序](https://leetcode.cn/problems/sort-array-by-increasing-frequency/) | [LeetCode 题解链接](https://leetcode.cn/problems/sort-array-by-increasing-frequency/solution/by-ac_oier-c3xc/) | 简单 | 🤩🤩🤩🤩 |
| [1833. 雪糕的最大数量](https://leetcode-cn.com/problems/maximum-ice-cream-bars/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/maximum-ice-cream-bars/solution/gong-shui-san-xie-noxiang-xin-ke-xue-xi-yrhjx/) | 中等 | 🤩🤩🤩🤩🤩 |
| [1834. 单线程 CPU](https://leetcode-cn.com/problems/single-threaded-cpu/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/single-threaded-cpu/solution/gong-shui-san-xie-shu-ju-jie-gou-yun-yon-1qk0/) | 中等 | 🤩🤩🤩🤩 |
| [1838. 最高频元素的频数](https://leetcode-cn.com/problems/frequency-of-the-most-frequent-element/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/frequency-of-the-most-frequent-element/solution/gong-shui-san-xie-cong-mei-ju-dao-pai-xu-kxnk/) | 中等 | 🤩🤩🤩 |
| [面试题 10.02. 变位词组](https://leetcode-cn.com/problems/group-anagrams-lcci/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/group-anagrams-lcci/solution/gong-shui-san-xie-tong-ji-bian-wei-ci-de-0iqe/) | 中等 | 🤩🤩🤩🤩 |
| [面试题 17.14. 最小K个数](https://leetcode-cn.com/problems/smallest-k-lcci/) | [LeetCode 题解链接](https://leetcode-cn.com/problems/smallest-k-lcci/solution/gong-shui-san-xie-yi-ti-si-jie-you-xian-yy5k5/) | 中等 | 🤩🤩🤩🤩 |
| [剑指 Offer II 007. 数组中和为 0 的三个数](https://leetcode.cn/problems/1fGaJU/) | [LeetCode 题解链接](https://leetcode.cn/problems/1fGaJU/solution/by-ac_oier-6mfb/) | 中等 | 🤩🤩🤩🤩 |
| [剑指 Offer II 009. 乘积小于 K 的子数组](https://leetcode.cn/problems/ZVAVXX/) | [LeetCode 题解链接](https://leetcode.cn/problems/ZVAVXX/solution/by-ac_oier-lop5/) | 中等 | 🤩🤩🤩🤩 |