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All 1000+ leetcode questions, online judge platforms and campus recruitment timeline.

All_Leetcode_Q_20190610 [updated on 2020_10_08]


:fire: 1. Online Judge

# 国内外目前OJ(Online Judge)平台 链接 公司采用(待完善)
1 Leetcode https://leetcode-cn.com/ https://leetcode.com/ 只刷题?
2 hackerrank https://www.hackerrank.com/dashboard BCG、Akuna、高盛
3 Lintcode https://www.lintcode.com/ ?
4 牛客 https://www.nowcoder.com 拼多多、大疆、网易、腾讯
5 赛码 https://www.acmcoder.com/index 京东、美团
6 amcatglobal https://amcatglobal.aspiringminds.com/ 亚马逊

:fire: 2. 供参考的一些时间表（:link:点击查看完整列表）：

:fire: 3. All_Leetcode_Companies （:link:点击查看完整列表）

:fire: 4. ALL_Solutions 点击查看: :link:@LiYu Lu / @GGarvit Bansal

:fire: 5. All_Leetcode_Questions

ps：(推荐Chrome扩展程序：Open Multiple URLs -可批量打开URLs,记得勾选Don't load tabs until selected,避免给服务器造成压力，推荐一次加载20-50页)

# 标题 难度 Acceptance 中文网址 会员 通过 提交
1 两数之和     简单 0.442 https://leetcode-cn.com/problems/two-sum 1839799 4160810
2 两数相加     中等 0.312 https://leetcode-cn.com/problems/add-two-numbers 889091 2851363
3 无重复字符的最长子串     中等 0.284 https://leetcode-cn.com/problems/longest-substring-without-repeating-characters 944953 3324704
4 寻找两个有序数组的中位数     困难 0.264 https://leetcode-cn.com/problems/median-of-two-sorted-arrays 442060 1671600
5 最长回文子串     中等 0.274 https://leetcode-cn.com/problems/longest-palindromic-substring 566322 2070485
6 Z 字形变换     中等 0.32 https://leetcode-cn.com/problems/zigzag-conversion 322584 1008796
7 整数反转     简单 0.253 https://leetcode-cn.com/problems/reverse-integer 702876 2775521
8 字符串转换整数 (atoi)     中等 0.147 https://leetcode-cn.com/problems/string-to-integer-atoi 370221 2525416
9 回文数     简单 0.435 https://leetcode-cn.com/problems/palindrome-number 589770 1356568
10 正则表达式匹配     困难 0.253 https://leetcode-cn.com/problems/regular-expression-matching 307713 1215688
11 盛最多水的容器     中等 0.448 https://leetcode-cn.com/problems/container-with-most-water 378211 845066
12 整数转罗马数字     中等 0.511 https://leetcode-cn.com/problems/integer-to-roman 232849 456069
13 罗马数字转整数     简单 0.525 https://leetcode-cn.com/problems/roman-to-integer 422983 806224
14 最长公共前缀     简单 0.336 https://leetcode-cn.com/problems/longest-common-prefix 472715 1407948
15 三数之和     中等 0.241 https://leetcode-cn.com/problems/3sum 558572 2321019
16 最接近的三数之和     中等 0.458 https://leetcode-cn.com/problems/3sum-closest 350184 765119
17 电话号码的字母组合     中等 0.417 https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number 394313 945668
18 四数之和     中等 0.306 https://leetcode-cn.com/problems/4sum
19 删除链表的倒数第N个节点     中等 0.343 https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list
20 有效的括号     简单 0.366 https://leetcode-cn.com/problems/valid-parentheses 600931 1642960
21 合并两个有序链表     简单 0.474 https://leetcode-cn.com/problems/merge-two-sorted-lists 591500 1247176
22 括号生成     中等 0.551 https://leetcode-cn.com/problems/generate-parentheses 343615 623473
23 合并K个排序链表     困难 0.346 https://leetcode-cn.com/problems/merge-k-sorted-lists 395129 1141058
24 两两交换链表中的节点     中等 0.448 https://leetcode-cn.com/problems/swap-nodes-in-pairs 318606 710541
25 K 个一组翻转链表     困难 0.366 https://leetcode-cn.com/problems/reverse-nodes-in-k-group 186046 508786
26 删除排序数组中的重复项     简单 0.408 https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array 599790 1469613
27 移除元素     简单 0.446 https://leetcode-cn.com/problems/remove-element 416180 932365
28 实现strStr()     简单 0.321 https://leetcode-cn.com/problems/implement-strstr 433392 1350846
29 两数相除     中等 0.162 https://leetcode-cn.com/problems/divide-two-integers 197660 1223448
30 串联所有单词的子串     困难 0.236 https://leetcode-cn.com/problems/substring-with-concatenation-of-all-words 134061 567133
31 下一个排列     中等 0.305 https://leetcode-cn.com/problems/next-permutation 239912 786108
32 最长有效括号     困难 0.256 https://leetcode-cn.com/problems/longest-valid-parentheses 192060 751524
33 搜索旋转排序数组     中等 0.329 https://leetcode-cn.com/problems/search-in-rotated-sorted-array 419943 1276069
34 在排序数组中查找元素的第一个和最后一个位置     中等 0.336 https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array 304649 906177
35 搜索插入位置     简单 0.409 https://leetcode-cn.com/problems/search-insert-position 405923 992906
36 有效的数独     中等 0.432 https://leetcode-cn.com/problems/valid-sudoku 238282 551594
37 解数独     困难 0.371 https://leetcode-cn.com/problems/sudoku-solver 130216 350885
38 报数     简单 0.406 https://leetcode-cn.com/problems/count-and-say 285740 703570
39 组合总和     中等 0.487 https://leetcode-cn.com/problems/combination-sum 346716 711774
40 组合总和 II     中等 0.418 https://leetcode-cn.com/problems/combination-sum-ii 223149 534412
41 缺失的第一个正数     困难 0.289 https://leetcode-cn.com/problems/first-missing-positive 215074 743158
42 接雨水     困难 0.433 https://leetcode-cn.com/problems/trapping-rain-water 296767 685171
43 字符串相乘     中等 0.308 https://leetcode-cn.com/problems/multiply-strings 203117 660175
44 通配符匹配     困难 0.229 https://leetcode-cn.com/problems/wildcard-matching 177982 778669
45 跳跃游戏 II     困难 0.281 https://leetcode-cn.com/problems/jump-game-ii 171326 609431
46 全排列     中等 0.554 https://leetcode-cn.com/problems/permutations 383728 692968
47 全排列 II     中等 0.406 https://leetcode-cn.com/problems/permutations-ii 245431 603968
48 旋转图像     中等 0.487 https://leetcode-cn.com/problems/rotate-image 254488 522690
49 字母异位词分组     中等 0.47 https://leetcode-cn.com/problems/group-anagrams 341014 726004
50 Pow(x, n)     中等 0.28 https://leetcode-cn.com/problems/powx-n 323710 1156069
51 N皇后     困难 0.395 https://leetcode-cn.com/problems/n-queens 142692 361395
52 N皇后 II     困难 0.521 https://leetcode-cn.com/problems/n-queens-ii 100193 192224
53 最大子序和     简单 0.437 https://leetcode-cn.com/problems/maximum-subarray 538231 1232388
54 螺旋矩阵     中等 0.305 https://leetcode-cn.com/problems/spiral-matrix 236597 774710
55 跳跃游戏     中等 0.32 https://leetcode-cn.com/problems/jump-game 267040 835405
56 合并区间     中等 0.357 https://leetcode-cn.com/problems/merge-intervals 352931 988545
57 插入区间     困难 0.313 https://leetcode-cn.com/problems/insert-interval 178321 570455
58 最后一个单词的长度     简单 0.323 https://leetcode-cn.com/problems/length-of-last-word 270304 837588
59 螺旋矩阵 II     中等 0.467 https://leetcode-cn.com/problems/spiral-matrix-ii 137313 293784
60 第k个排列     中等 0.332 https://leetcode-cn.com/problems/permutation-sequence 138817 418558
61 旋转链表     中等 0.272 https://leetcode-cn.com/problems/rotate-list 193910 712863
62 不同路径     中等 0.477 https://leetcode-cn.com/problems/unique-paths 291580 611019
63 不同路径 II     中等 0.335 https://leetcode-cn.com/problems/unique-paths-ii 202512 604824
64 最小路径和     中等 0.47 https://leetcode-cn.com/problems/minimum-path-sum 232807 495166
65 有效数字     困难 0.14 https://leetcode-cn.com/problems/valid-number 124746 889486
66 加一     简单 0.413 https://leetcode-cn.com/problems/plus-one 396385 960132
67 二进制求和     简单 0.393 https://leetcode-cn.com/problems/add-binary 306137 779667
68 文本左右对齐     困难 0.234 https://leetcode-cn.com/problems/text-justification 97434 416955
69 x 的平方根     简单 0.314 https://leetcode-cn.com/problems/sqrtx 371336 1183154
70 爬楼梯     简单 0.442 https://leetcode-cn.com/problems/climbing-stairs 408843 923949
71 简化路径     中等 0.288 https://leetcode-cn.com/problems/simplify-path 151328 525012
72 编辑距离     困难 0.379 https://leetcode-cn.com/problems/edit-distance 175645 463819
73 矩阵置零     中等 0.399 https://leetcode-cn.com/problems/set-matrix-zeroes 211023 528935
74 搜索二维矩阵     中等 0.349 https://leetcode-cn.com/problems/search-a-2d-matrix 225466 645864
75 颜色分类     中等 0.423 https://leetcode-cn.com/problems/sort-colors 320969 759606
76 最小覆盖子串     困难 0.309 https://leetcode-cn.com/problems/minimum-window-substring 239645 775739
77 组合     中等 0.478 https://leetcode-cn.com/problems/combinations 204223 427066
78 子集     中等 0.53 https://leetcode-cn.com/problems/subsets 369736 697355
79 单词搜索     中等 0.314 https://leetcode-cn.com/problems/word-search 285661 910715
80 删除排序数组中的重复项 II     中等 0.404 https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array-ii 202894 501829
81 搜索旋转排序数组 II     中等 0.326 https://leetcode-cn.com/problems/search-in-rotated-sorted-array-ii 172641 529091
82 删除排序链表中的重复元素 II     中等 0.331 https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii 183457 553944
83 删除排序链表中的重复元素     简单 0.427 https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list 331045 776117
84 柱状图中最大的矩形     困难 0.312 https://leetcode-cn.com/problems/largest-rectangle-in-histogram 175924 563103
85 最大矩形     困难 0.334 https://leetcode-cn.com/problems/maximal-rectangle 122394 366179
86 分隔链表     中等 0.373 https://leetcode-cn.com/problems/partition-list 164856 441521
87 扰乱字符串     困难 0.316 https://leetcode-cn.com/problems/scramble-string 90814 287052
88 合并两个有序数组     简单 0.358 https://leetcode-cn.com/problems/merge-sorted-array 368427 1028721
89 格雷编码     中等 0.458 https://leetcode-cn.com/problems/gray-code 134596 293597
90 子集 II     中等 0.425 https://leetcode-cn.com/problems/subsets-ii 204569 481131
91 解码方法     中等 0.224 https://leetcode-cn.com/problems/decode-ways 262911 1175744
92 反转链表 II     中等 0.35 https://leetcode-cn.com/problems/reverse-linked-list-ii 195888 559354
93 复原IP地址     中等 0.316 https://leetcode-cn.com/problems/restore-ip-addresses 140663 445710
94 二叉树的中序遍历     中等 0.568 https://leetcode-cn.com/problems/binary-tree-inorder-traversal 466503 821139
95 不同的二叉搜索树 II     中等 0.358 https://leetcode-cn.com/problems/unique-binary-search-trees-ii 139561 389824
96 不同的二叉搜索树     中等 0.463 https://leetcode-cn.com/problems/unique-binary-search-trees 200968 433659
97 交错字符串     困难 0.281 https://leetcode-cn.com/problems/interleaving-string 112206 399726
98 验证二叉搜索树     中等 0.258 https://leetcode-cn.com/problems/validate-binary-search-tree 410204 1591329
99 恢复二叉搜索树     困难 0.347 https://leetcode-cn.com/problems/recover-binary-search-tree 118624 341708
100 相同的树     简单 0.501 https://leetcode-cn.com/problems/same-tree 380739 760291
101 对称二叉树     简单 0.435 https://leetcode-cn.com/problems/symmetric-tree 405899 932639
102 二叉树的层次遍历     中等 0.486 https://leetcode-cn.com/problems/binary-tree-level-order-traversal 381591 784712
103 二叉树的锯齿形层次遍历     中等 0.419 https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal 221618 529396
104 二叉树的最大深度     简单 0.607 https://leetcode-cn.com/problems/maximum-depth-of-binary-tree 514118 847498
105 从前序与中序遍历序列构造二叉树     中等 0.413 https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal 225879 547042
106 从中序与后序遍历序列构造二叉树     中等 0.394 https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal 154534 391884
107 二叉树的层次遍历 II     简单 0.469 https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii 227803 485659
108 将有序数组转换为二叉搜索树     简单 0.509 https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree 264760 520164
109 有序链表转换二叉搜索树     中等 0.41 https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree 177272 432892
110 平衡二叉树     简单 0.41 https://leetcode-cn.com/problems/balanced-binary-tree 323597 788282
111 二叉树的最小深度     简单 0.353 https://leetcode-cn.com/problems/minimum-depth-of-binary-tree 297249 841123
112 路径总和     简单 0.378 https://leetcode-cn.com/problems/path-sum 316547 836310
113 路径总和 II     中等 0.408 https://leetcode-cn.com/problems/path-sum-ii 233375 572390
114 二叉树展开为链表     中等 0.425 https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list 239440 563124
115 不同的子序列     困难 0.351 https://leetcode-cn.com/problems/distinct-subsequences 106874 304356
116 填充每个节点的下一个右侧节点指针     中等 0.38 https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node 246478 648490
117 填充每个节点的下一个右侧节点指针 II     中等 0.345 https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii 184464 535094
118 杨辉三角     简单 0.462 https://leetcode-cn.com/problems/pascals-triangle 255901 554263
119 杨辉三角 II     简单 0.437 https://leetcode-cn.com/problems/pascals-triangle-ii 205192 469511
120 三角形最小路径和     中等 0.395 https://leetcode-cn.com/problems/triangle 182962 463721
121 买卖股票的最佳时机     简单 0.473 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock 505415 1067673
122 买卖股票的最佳时机 II     简单 0.52 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii 328055 630537
123 买卖股票的最佳时机 III     困难 0.338 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii 150126 444767
124 二叉树中的最大路径和     困难 0.301 https://leetcode-cn.com/problems/binary-tree-maximum-path-sum 194454 646103
125 验证回文串     简单 0.312 https://leetcode-cn.com/problems/valid-palindrome 359040 1150229
126 单词接龙 II     困难 0.178 https://leetcode-cn.com/problems/word-ladder-ii
127 单词接龙     中等 0.241 https://leetcode-cn.com/problems/word-ladder 260866 1080154
128 最长连续序列     困难 0.418 https://leetcode-cn.com/problems/longest-consecutive-sequence 208987 500461
129 求根到叶子节点数字之和     中等 0.426 https://leetcode-cn.com/problems/sum-root-to-leaf-numbers 186234 437356
130 被围绕的区域     中等 0.229 https://leetcode-cn.com/problems/surrounded-regions 146087 636760
131 分割回文串     中等 0.41 https://leetcode-cn.com/problems/palindrome-partitioning 165022 402356
132 分割回文串 II     困难 0.275 https://leetcode-cn.com/problems/palindrome-partitioning-ii 103459 376588
133 克隆图     中等 0.267 https://leetcode-cn.com/problems/clone-graph 218674 819726
134 加油站     中等 0.339 https://leetcode-cn.com/problems/gas-station 144487 425971
135 分发糖果     困难 0.284 https://leetcode-cn.com/problems/candy 103036 362231
136 只出现一次的数字     简单 0.603 https://leetcode-cn.com/problems/single-number 467518 775808
137 只出现一次的数字 II     中等 0.46 https://leetcode-cn.com/problems/single-number-ii 167411 363803
138 复制带随机指针的链表     中等 0.273 https://leetcode-cn.com/problems/copy-list-with-random-pointer 249269 913960
139 单词拆分     中等 0.354 https://leetcode-cn.com/problems/word-break 340169 960364
140 单词拆分 II     困难 0.274 https://leetcode-cn.com/problems/word-break-ii 159718 583599
141 环形链表     简单 0.37 https://leetcode-cn.com/problems/linked-list-cycle 409161 1105058
142 环形链表 II     中等 0.322 https://leetcode-cn.com/problems/linked-list-cycle-ii 216705 673242
143 重排链表     中等 0.31 https://leetcode-cn.com/problems/reorder-list 155946 503693
144 二叉树的前序遍历     中等 0.515 https://leetcode-cn.com/problems/binary-tree-preorder-traversal 341170 663093
145 二叉树的后序遍历     困难 0.486 https://leetcode-cn.com/problems/binary-tree-postorder-traversal 262277 539316
146 LRU缓存机制     中等 0.256 https://leetcode-cn.com/problems/lru-cache 301470 1176622
147 对链表进行插入排序     中等 0.374 https://leetcode-cn.com/problems/insertion-sort-list 150245 402070
148 排序链表     中等 0.355 https://leetcode-cn.com/problems/sort-list 186556 525403
149 直线上最多的点数     困难 0.158 https://leetcode-cn.com/problems/max-points-on-a-line 120499 763156
150 逆波兰表达式求值     中等 0.323 https://leetcode-cn.com/problems/evaluate-reverse-polish-notation 163569 506273
151 翻转字符串里的单词     中等 0.168 https://leetcode-cn.com/problems/reverse-words-in-a-string 282948 1681517
152 乘积最大子序列     中等 0.293 https://leetcode-cn.com/problems/maximum-product-subarray 212597 725173
153 寻找旋转排序数组中的最小值     中等 0.43 https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array 285911 664899
154 寻找旋转排序数组中的最小值 II     困难 0.394 https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii 131151 333194
155 最小栈     简单 0.372 https://leetcode-cn.com/problems/min-stack 304622 819452
156 上下翻转二叉树     中等 0.508 https://leetcode-cn.com/problems/binary-tree-upside-down Lock
157 用 Read4 读取 N 个字符     简单 0.295 https://leetcode-cn.com/problems/read-n-characters-given-read4 Lock
158 用 Read4 读取 N 个字符 II     困难 0.264 https://leetcode-cn.com/problems/read-n-characters-given-read4-ii-call-multiple-times Lock
159 至多包含两个不同字符的最长子串     困难 0.471 https://leetcode-cn.com/problems/longest-substring-with-at-most-two-distinct-characters Lock
160 相交链表     简单 0.34 https://leetcode-cn.com/problems/intersection-of-two-linked-lists 307236 903803
161 相隔为 1 的编辑距离     中等 0.317 https://leetcode-cn.com/problems/one-edit-distance Lock
162 寻找峰值     中等 0.413 https://leetcode-cn.com/problems/find-peak-element 240011 581446
163 缺失的区间     中等 0.232 https://leetcode-cn.com/problems/missing-ranges Lock
164 最大间距     困难 0.326 https://leetcode-cn.com/problems/maximum-gap 70370 216048
165 比较版本号     中等 0.236 https://leetcode-cn.com/problems/compare-version-numbers 137707 582511
166 分数到小数     中等 0.195 https://leetcode-cn.com/problems/fraction-to-recurring-decimal 88276 452855
167 两数之和 II - 输入有序数组     简单 0.504 https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted 249776 495092
168 Excel表列名称     简单 0.29 https://leetcode-cn.com/problems/excel-sheet-column-title 173159 596774
169 求众数     简单 0.528 https://leetcode-cn.com/problems/majority-element 387300 734045
170 两数之和 III - 数据结构设计     简单 0.305 https://leetcode-cn.com/problems/two-sum-iii-data-structure-design Lock
171 Excel表列序号     简单 0.516 https://leetcode-cn.com/problems/excel-sheet-column-number 221301 428990
172 阶乘后的零     简单 0.374 https://leetcode-cn.com/problems/factorial-trailing-zeroes
173 二叉搜索树迭代器     中等 0.488 https://leetcode-cn.com/problems/binary-search-tree-iterator 206141 422642
174 地下城游戏     困难 0.272 https://leetcode-cn.com/problems/dungeon-game 66375 244279
175 组合两个表     简单 0.52 https://leetcode-cn.com/problems/combine-two-tables 164200 316036
176 第二高的薪水     简单 0.273 https://leetcode-cn.com/problems/second-highest-salary/ 132926 487169
177 第N高的薪水     中等 0.264 https://leetcode-cn.com/problems/nth-highest-salary 66141 250748
178 分数排名     中等 0.367 https://leetcode-cn.com/problems/rank-scores 64464 175436
179 最大数     中等 0.258 https://leetcode-cn.com/problems/largest-number 130260 504016
180 连续出现的数字     中等 0.337 https://leetcode-cn.com/problems/consecutive-numbers 54839 162517
181 超过经理收入的员工     简单 0.486 https://leetcode-cn.com/problems/employees-earning-more-than-their-managers 111266 229097
182 查找重复的电子邮箱     简单 0.549 https://leetcode-cn.com/problems/duplicate-emails 115785 211016
183 从不订购的客户     简单 0.45 https://leetcode-cn.com/problems/customers-who-never-order 104708 232894
184 部门工资最高的员工     中等 0.29 https://leetcode-cn.com/problems/department-highest-salary 64750 222997
185 部门工资前三高的员工     困难 0.26 https://leetcode-cn.com/problems/department-top-three-salaries 44117 169325
186 翻转字符串里的单词 II     中等 0.378 https://leetcode-cn.com/problems/reverse-words-in-a-string-ii Lock
187 重复的DNA序列     中等 0.361 https://leetcode-cn.com/problems/repeated-dna-sequences 126395 350025
188 买卖股票的最佳时机 IV     困难 0.264 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv 87539 331979
189 旋转数组     简单 0.302 https://leetcode-cn.com/problems/rotate-array 301651 998440
190 颠倒二进制位     简单 0.314 https://leetcode-cn.com/problems/reverse-bits 182932 581809
191 位1的个数     简单 0.433 https://leetcode-cn.com/problems/number-of-1-bits 259873 599914
192 统计词频     中等 0.268 https://leetcode-cn.com/problems/word-frequency 18975 70788
193 有效电话号码     简单 0.251 https://leetcode-cn.com/problems/valid-phone-numbers 24804 98678
194 转置文件     中等 0.228 https://leetcode-cn.com/problems/transpose-file 9803 43003
195 第十行     简单 0.339 https://leetcode-cn.com/problems/tenth-line 38645 114037
196 删除重复的电子邮箱     简单 0.33 https://leetcode-cn.com/problems/delete-duplicate-emails 72723 220699
197 上升的温度     简单 0.348 https://leetcode-cn.com/problems/rising-temperature 77853 223349
198 打家劫舍     简单 0.41 https://leetcode-cn.com/problems/house-robber 323971 789317
199 二叉树的右视图     中等 0.481 https://leetcode-cn.com/problems/binary-tree-right-side-view 169626 352996
200 岛屿数量     中等 0.416 https://leetcode-cn.com/problems/number-of-islands 359570 863720
201 数字范围按位与     中等 0.359 https://leetcode-cn.com/problems/bitwise-and-of-numbers-range 82007 228126
202 快乐数     简单 0.453 https://leetcode-cn.com/problems/happy-number 235488 519548
203 移除链表元素     简单 0.358 https://leetcode-cn.com/problems/remove-linked-list-elements 227052 633633
204 计数质数     简单 0.291 https://leetcode-cn.com/problems/count-primes 239109 822901
205 同构字符串     简单 0.374 https://leetcode-cn.com/problems/isomorphic-strings 205266 548622
206 反转链表     简单 0.549 https://leetcode-cn.com/problems/reverse-linked-list 595945 1085353
207 课程表     中等 0.379 https://leetcode-cn.com/problems/course-schedule 219392 578104
208 实现 Trie (前缀树)     中等 0.386 https://leetcode-cn.com/problems/implement-trie-prefix-tree 180632 467385
209 长度最小的子数组     中等 0.349 https://leetcode-cn.com/problems/minimum-size-subarray-sum 178433 510799
210 课程表 II     中等 0.349 https://leetcode-cn.com/problems/course-schedule-ii 149240 427063
211 添加与搜索单词 - 数据结构设计     中等 0.304 https://leetcode-cn.com/problems/add-and-search-word-data-structure-design 115718 380117
212 单词搜索 II     困难 0.288 https://leetcode-cn.com/problems/word-search-ii 113794 395524
213 打家劫舍 II     中等 0.353 https://leetcode-cn.com/problems/house-robber-ii 116613 330435
214 最短回文串     困难 0.276 https://leetcode-cn.com/problems/shortest-palindrome 75151 272079
215 数组中的第K个最大元素     中等 0.48 https://leetcode-cn.com/problems/kth-largest-element-in-an-array 378568 789180
216 组合总和 III     中等 0.517 https://leetcode-cn.com/problems/combination-sum-iii 122657 237483
217 存在重复元素     简单 0.52 https://leetcode-cn.com/problems/contains-duplicate 339136 651567
218 天际线问题     困难 0.317 https://leetcode-cn.com/problems/the-skyline-problem 93192 293847
219 存在重复元素 II     简单 0.353 https://leetcode-cn.com/problems/contains-duplicate-ii 199160 563486
220 存在重复元素 III     中等 0.198 https://leetcode-cn.com/problems/contains-duplicate-iii 92862 470055
221 最大正方形     中等 0.331 https://leetcode-cn.com/problems/maximal-square 131063 395918
222 完全二叉树的节点个数     中等 0.338 https://leetcode-cn.com/problems/count-complete-tree-nodes 122059 360642
223 矩形面积     中等 0.359 https://leetcode-cn.com/problems/rectangle-area
224 基本计算器     困难 0.328 https://leetcode-cn.com/problems/basic-calculator 108113 329569
225 用队列实现栈     简单 0.394 https://leetcode-cn.com/problems/implement-stack-using-queues 130230 330806
226 翻转二叉树     简单 0.583 https://leetcode-cn.com/problems/invert-binary-tree 328740 563606
227 基本计算器 II     中等 0.335 https://leetcode-cn.com/problems/basic-calculator-ii 110563 329657
228 汇总区间     中等 0.36 https://leetcode-cn.com/problems/summary-ranges 132059 366752
229 求众数 II     中等 0.322 https://leetcode-cn.com/problems/majority-element-ii 101659 316167
230 二叉搜索树中第K小的元素     中等 0.516 https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst 225536 437014
231 2的幂     简单 0.42 https://leetcode-cn.com/problems/power-of-two 229786 547370
232 用栈实现队列     简单 0.434 https://leetcode-cn.com/problems/implement-queue-using-stacks
233 数字 1 的个数     困难 0.302 https://leetcode-cn.com/problems/number-of-digit-one 41100 135959
234 回文链表     简单 0.362 https://leetcode-cn.com/problems/palindrome-linked-list 262098 724868
235 二叉搜索树的最近公共祖先     简单 0.448 https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree 284015 633770
236 二叉树的最近公共祖先     中等 0.375 https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree 281559 751392
237 删除链表中的节点     简单 0.537 https://leetcode-cn.com/problems/delete-node-in-a-linked-list 287831 535873
238 除自身以外数组的乘积     中等 0.552 https://leetcode-cn.com/problems/product-of-array-except-self 260713 472610
239 滑动窗口最大值     困难 0.383 https://leetcode-cn.com/problems/sliding-window-maximum 160235 418910
240 搜索二维矩阵 II     中等 0.409 https://leetcode-cn.com/problems/search-a-2d-matrix-ii 181760 444447
241 为运算表达式设计优先级     中等 0.5 https://leetcode-cn.com/problems/different-ways-to-add-parentheses 73859 147687
242 有效的字母异位词     简单 0.523 https://leetcode-cn.com/problems/valid-anagram 343415 656874
243 最短单词距离     简单 0.574 https://leetcode-cn.com/problems/shortest-word-distance Lock
244 最短单词距离 II     中等 0.474 https://leetcode-cn.com/problems/shortest-word-distance-ii Lock
245 最短单词距离 III     中等 0.534 https://leetcode-cn.com/problems/shortest-word-distance-iii Lock
246 中心对称数     简单 0.423 https://leetcode-cn.com/problems/strobogrammatic-number Lock
247 中心对称数 II     中等 0.444 https://leetcode-cn.com/problems/strobogrammatic-number-ii Lock
248 中心对称数 III     困难 0.366 https://leetcode-cn.com/problems/strobogrammatic-number-iii Lock
249 移位字符串分组     中等 0.489 https://leetcode-cn.com/problems/group-shifted-strings Lock
250 统计同值子树     中等 0.488 https://leetcode-cn.com/problems/count-univalue-subtrees Lock
251 展开二维向量     中等 0.438 https://leetcode-cn.com/problems/flatten-2d-vector Lock
252 会议室     简单 0.521 https://leetcode-cn.com/problems/meeting-rooms Lock
253 会议室 II     中等 0.429 https://leetcode-cn.com/problems/meeting-rooms-ii Lock
254 因子的组合     中等 0.444 https://leetcode-cn.com/problems/factor-combinations Lock
255 验证前序遍历序列二叉搜索树     中等 0.436 https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree Lock
256 粉刷房子     简单 0.49 https://leetcode-cn.com/problems/paint-house Lock
257 二叉树的所有路径     简单 0.461 https://leetcode-cn.com/problems/binary-tree-paths 227984 494493
258 各位相加     简单 0.542 https://leetcode-cn.com/problems/add-digits 239360 441927
259 较小的三数之和     中等 0.449 https://leetcode-cn.com/problems/3sum-smaller Lock
260 只出现一次的数字 III     中等 0.571 https://leetcode-cn.com/problems/single-number-iii 107435 188169
261 以图判树     中等 0.399 https://leetcode-cn.com/problems/graph-valid-tree Lock
262 行程和用户     困难 0.251 https://leetcode-cn.com/problems/trips-and-users 33806 134434
263 丑数     简单 0.406 https://leetcode-cn.com/problems/ugly-number 157908 388621
264 丑数 II     中等 0.364 https://leetcode-cn.com/problems/ugly-number-ii 105097 288351
265 粉刷房子 II     困难 0.416 https://leetcode-cn.com/problems/paint-house-ii Lock
266 回文排列     简单 0.601 https://leetcode-cn.com/problems/palindrome-permutation Lock
267 回文排列 II     中等 0.337 https://leetcode-cn.com/problems/palindrome-permutation-ii Lock
268 缺失数字     简单 0.485 https://leetcode-cn.com/problems/missing-number
269 火星词典     困难 0.31 https://leetcode-cn.com/problems/alien-dictionary Lock
270 最接近的二叉搜索树值     简单 0.439 https://leetcode-cn.com/problems/closest-binary-search-tree-value Lock
271 字符串的编码与解码     中等 0.268 https://leetcode-cn.com/problems/encode-and-decode-strings Lock
272 最接近的二叉搜索树值 II     困难 0.451 https://leetcode-cn.com/problems/closest-binary-search-tree-value-ii Lock
273 整数转换英文表示     困难 0.244 https://leetcode-cn.com/problems/integer-to-english-words 104069 426844
274 H指数     中等 0.346 https://leetcode-cn.com/problems/h-index 123111 355625
275 H指数 II     中等 0.355 https://leetcode-cn.com/problems/h-index-ii 80149 225940
276 栅栏涂色     简单 0.365 https://leetcode-cn.com/problems/paint-fence Lock
277 搜寻名人     中等 0.369 https://leetcode-cn.com/problems/find-the-celebrity Lock
278 第一个错误的版本     简单 0.3 https://leetcode-cn.com/problems/first-bad-version 225063 748967
279 完全平方数     中等 0.42 https://leetcode-cn.com/problems/perfect-squares 184569 439214
280 摆动排序     中等 0.611 https://leetcode-cn.com/problems/wiggle-sort Lock
281 锯齿迭代器     中等 0.56 https://leetcode-cn.com/problems/zigzag-iterator Lock
282 给表达式添加运算符     困难 0.328 https://leetcode-cn.com/problems/expression-add-operators 68985 210318
283 移动零     简单 0.544 https://leetcode-cn.com/problems/move-zeroes 470951 865800
284 顶端迭代器     中等 0.407 https://leetcode-cn.com/problems/peeking-iterator
285 二叉搜索树中的顺序后继     中等 0.348 https://leetcode-cn.com/problems/inorder-successor-in-bst Lock
286 墙与门     中等 0.496 https://leetcode-cn.com/problems/walls-and-gates Lock
287 寻找重复数     中等 0.497 https://leetcode-cn.com/problems/find-the-duplicate-number 191477 385092
288 单词的唯一缩写     中等 0.2 https://leetcode-cn.com/problems/unique-word-abbreviation Lock
289 生命游戏     中等 0.455 https://leetcode-cn.com/problems/game-of-life 113975 250244
290 单词规律     简单 0.351 https://leetcode-cn.com/problems/word-pattern 141647 404071
291 单词规律 II     困难 0.409 https://leetcode-cn.com/problems/word-pattern-ii Lock
292 Nim 游戏     简单 0.557 https://leetcode-cn.com/problems/nim-game 184705 331871
293 翻转游戏     简单 0.589 https://leetcode-cn.com/problems/flip-game Lock
294 翻转游戏 II     中等 0.483 https://leetcode-cn.com/problems/flip-game-ii Lock
295 数据流的中位数     困难 0.367 https://leetcode-cn.com/problems/find-median-from-data-stream 109274 297395
296 最佳的碰头地点     困难 0.549 https://leetcode-cn.com/problems/best-meeting-point Lock
297 二叉树的序列化与反序列化     困难 0.41 https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree 185764 452648
298 二叉树最长连续序列     中等 0.441 https://leetcode-cn.com/problems/binary-tree-longest-consecutive-sequence Lock
299 猜数字游戏     中等 0.395 https://leetcode-cn.com/problems/bulls-and-cows 97374 246262
300 最长上升子序列     中等 0.409 https://leetcode-cn.com/problems/longest-increasing-subsequence 224619 549735
301 删除无效的括号     困难 0.394 https://leetcode-cn.com/problems/remove-invalid-parentheses 125815 319552
302 包含全部黑色像素的最小矩形     困难 0.493 https://leetcode-cn.com/problems/smallest-rectangle-enclosing-black-pixels Lock
303 区域和检索 - 数组不可变     简单 0.381 https://leetcode-cn.com/problems/range-sum-query-immutable 139408 366039
304 二维区域和检索 - 矩阵不可变     中等 0.324 https://leetcode-cn.com/problems/range-sum-query-2d-immutable 70032 216243
305 岛屿数量 II     困难 0.419 https://leetcode-cn.com/problems/number-of-islands-ii Lock
306 累加数     中等 0.284 https://leetcode-cn.com/problems/additive-number 40716 143584
307 区域和检索 - 数组可修改     中等 0.288 https://leetcode-cn.com/problems/range-sum-query-mutable 72200 251042
308 二维区域和检索 - 可变     困难 0.32 https://leetcode-cn.com/problems/range-sum-query-2d-mutable Lock
309 最佳买卖股票时机含冷冻期     中等 0.441 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-cooldown 91921 208519
310 最小高度树     中等 0.302 https://leetcode-cn.com/problems/minimum-height-trees 64974 215314
311 稀疏矩阵的乘法     中等 0.564 https://leetcode-cn.com/problems/sparse-matrix-multiplication Lock
312 戳气球     困难 0.473 https://leetcode-cn.com/problems/burst-balloons 64005 135188
313 超级丑数     中等 0.414 https://leetcode-cn.com/problems/super-ugly-number 60375 145691
314 二叉树的垂直遍历     中等 0.41 https://leetcode-cn.com/problems/binary-tree-vertical-order-traversal Lock
315 计算右侧小于当前元素的个数     困难 0.382 https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self
316 去除重复字母     困难 0.325 https://leetcode-cn.com/problems/remove-duplicate-letters 57118 175459
317 离建筑物最近的距离     困难 0.378 https://leetcode-cn.com/problems/shortest-distance-from-all-buildings Lock
318 最大单词长度乘积     中等 0.485 https://leetcode-cn.com/problems/maximum-product-of-word-lengths 79817 164531
319 灯泡开关     中等 0.44 https://leetcode-cn.com/problems/bulb-switcher 59577 135531
320 列举单词的全部缩写     中等 0.488 https://leetcode-cn.com/problems/generalized-abbreviation Lock
321 拼接最大数     困难 0.254 https://leetcode-cn.com/problems/create-maximum-number 30470 119909
322 零钱兑换     中等 0.305 https://leetcode-cn.com/problems/coin-change 198733 651506
323 无向图中连通分量的数目     中等 0.521 https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph Lock
324 摆动排序 II     中等 0.28 https://leetcode-cn.com/problems/wiggle-sort-ii 59799 213622
325 和等于 k 的最长子数组长度     中等 0.447 https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k Lock
326 3的幂     简单 0.417 https://leetcode-cn.com/problems/power-of-three 185390 444844
327 区间和的个数     困难 0.328 https://leetcode-cn.com/problems/count-of-range-sum 31661 96599
328 奇偶链表     中等 0.493 https://leetcode-cn.com/problems/odd-even-linked-list 148679 301741
329 矩阵中的最长递增路径     困难 0.401 https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix 88164 219955
330 按要求补齐数组     困难 0.334 https://leetcode-cn.com/problems/patching-array 31337 93916
331 验证二叉树的前序序列化     中等 0.386 https://leetcode-cn.com/problems/verify-preorder-serialization-of-a-binary-tree 58416 151187
332 重新安排行程     中等 0.315 https://leetcode-cn.com/problems/reconstruct-itinerary 79934 253540
333 最大 BST 子树     中等 0.331 https://leetcode-cn.com/problems/largest-bst-subtree Lock
334 递增的三元子序列     中等 0.396 https://leetcode-cn.com/problems/increasing-triplet-subsequence 93183 235377
335 路径交叉     困难 0.27 https://leetcode-cn.com/problems/self-crossing 19232 71182
336 回文对     困难 0.31 https://leetcode-cn.com/problems/palindrome-pairs 70097 225957
337 打家劫舍 III     中等 0.481 https://leetcode-cn.com/problems/house-robber-iii 103453 215013
338 比特位计数     中等 0.648 https://leetcode-cn.com/problems/counting-bits 169300 261403
339 嵌套列表权重和     简单 0.683 https://leetcode-cn.com/problems/nested-list-weight-sum Lock
340 至多包含 K 个不同字符的最长子串     困难 0.398 https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters Lock
341 扁平化嵌套列表迭代器     中等 0.48 https://leetcode-cn.com/problems/flatten-nested-list-iterator 111241 231723
342 4的幂     简单 0.403 https://leetcode-cn.com/problems/power-of-four 114134 283302
343 整数拆分     中等 0.478 https://leetcode-cn.com/problems/integer-break 79800 166852
344 反转字符串     简单 0.633 https://leetcode-cn.com/problems/reverse-string 433199 683882
345 反转字符串中的元音字母     简单 0.415 https://leetcode-cn.com/problems/reverse-vowels-of-a-string 156726 377412
346 数据流中的移动平均值     简单 0.664 https://leetcode-cn.com/problems/moving-average-from-data-stream Lock
347 前K个高频元素     中等 0.55 https://leetcode-cn.com/problems/top-k-frequent-elements/ 207779 377562
348 判定井字棋胜负     中等 0.498 https://leetcode-cn.com/problems/design-tic-tac-toe Lock
349 两个数组的交集     简单 0.548 https://leetcode-cn.com/problems/intersection-of-two-arrays 222242 405575
350 两个数组的交集 II     简单 0.479 https://leetcode-cn.com/problems/intersection-of-two-arrays-ii 203978 425859
351 安卓系统手势解锁     中等 0.459 https://leetcode-cn.com/problems/android-unlock-patterns Lock
352 将数据流变为多个不相交区间     困难 0.435 https://leetcode-cn.com/problems/data-stream-as-disjoint-intervals 24200 55586
353 贪吃蛇     中等 0.305 https://leetcode-cn.com/problems/design-snake-game Lock
354 俄罗斯套娃信封问题     困难 0.34 https://leetcode-cn.com/problems/russian-doll-envelopes 44871 132117
355 设计推特     中等 0.274 https://leetcode-cn.com/problems/design-twitter 34584 126290
356 直线镜像     中等 0.309 https://leetcode-cn.com/problems/line-reflection Lock
357 计算各个位数不同的数字个数     中等 0.469 https://leetcode-cn.com/problems/count-numbers-with-unique-digits 61878 131818
358 K 距离间隔重排字符串     困难 0.328 https://leetcode-cn.com/problems/rearrange-string-k-distance-apart Lock
359 日志速率限制器     简单 0.652 https://leetcode-cn.com/problems/logger-rate-limiter Lock
360 有序转化数组     中等 0.468 https://leetcode-cn.com/problems/sort-transformed-array Lock
361 轰炸敌人     中等 0.434 https://leetcode-cn.com/problems/bomb-enemy Lock
362 敲击计数器     中等 0.59 https://leetcode-cn.com/problems/design-hit-counter Lock
363 矩形区域不超过 K 的最大数值和     困难 0.351 https://leetcode-cn.com/problems/max-sum-of-rectangle-no-larger-than-k
364 加权嵌套序列和 II     中等 0.578 https://leetcode-cn.com/problems/nested-list-weight-sum-ii Lock
365 水壶问题     中等 0.289 https://leetcode-cn.com/problems/water-and-jug-problem 28014 96770
366 寻找完全二叉树的叶子节点     中等 0.658 https://leetcode-cn.com/problems/find-leaves-of-binary-tree Lock
367 有效的完全平方数     简单 0.398 https://leetcode-cn.com/problems/valid-perfect-square 111359 279569
368 最大整除子集     中等 0.348 https://leetcode-cn.com/problems/largest-divisible-subset 46642 133944
369 给单链表加一     中等 0.562 https://leetcode-cn.com/problems/plus-one-linked-list Lock
370 区间加法     中等 0.605 https://leetcode-cn.com/problems/range-addition Lock
371 两整数之和     简单 0.509 https://leetcode-cn.com/problems/sum-of-two-integers 135304 265734
372 超级次方     中等 0.356 https://leetcode-cn.com/problems/super-pow 27728 77793
373 查找和最小的K对数字     中等 0.339 https://leetcode-cn.com/problems/find-k-pairs-with-smallest-sums 66831 197410
374 猜数字大小     简单 0.395 https://leetcode-cn.com/problems/guess-number-higher-or-lower 107929 273235
375 猜数字大小 II     中等 0.377 https://leetcode-cn.com/problems/guess-number-higher-or-lower-ii 44229 117237
376 摆动序列     中等 0.375 https://leetcode-cn.com/problems/wiggle-subsequence 47972 128052
377 组合总和 Ⅳ     中等 0.437 https://leetcode-cn.com/problems/combination-sum-iv 85584 195709
378 有序矩阵中第K小的元素     中等 0.495 https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix 110291 222718
379 电话目录管理系统     中等 0.414 https://leetcode-cn.com/problems/design-phone-directory Lock
380 常数时间插入、删除和获取随机元素     中等 0.429 https://leetcode-cn.com/problems/insert-delete-getrandom-o1 114884 268005
381 O(1) 时间插入、删除和获取随机元素 - 允许重复     困难 0.32 https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed 42245 132080
382 链表随机节点     中等 0.493 https://leetcode-cn.com/problems/linked-list-random-node 53054 107549
383 赎金信     简单 0.499 https://leetcode-cn.com/problems/ransom-note 112717 225718
384 打乱数组     中等 0.501 https://leetcode-cn.com/problems/shuffle-an-array 77360 154457
385 迷你语法分析器     中等 0.319 https://leetcode-cn.com/problems/mini-parser
386 字典序排数     中等 0.462 https://leetcode-cn.com/problems/lexicographical-numbers 40410 87449
387 字符串中的第一个唯一字符     简单 0.501 https://leetcode-cn.com/problems/first-unique-character-in-a-string 271589 542081
388 文件的最长绝对路径     中等 0.392 https://leetcode-cn.com/problems/longest-absolute-file-path 64685 164927
389 找不同     简单 0.531 https://leetcode-cn.com/problems/find-the-difference 145679 274249
390 消除游戏     中等 0.434 https://leetcode-cn.com/problems/elimination-game
391 完美矩形     困难 0.282 https://leetcode-cn.com/problems/perfect-rectangle 18400 65200
392 判断子序列     中等 0.468 https://leetcode-cn.com/problems/is-subsequence 88841 189822
393 UTF-8 编码验证     中等 0.359 https://leetcode-cn.com/problems/utf-8-validation 35522 98936
394 字符串解码     中等 0.45 https://leetcode-cn.com/problems/decode-string 104762 232840
395 至少有K个重复字符的最长子串     中等 0.387 https://leetcode-cn.com/problems/longest-substring-with-at-least-k-repeating-characters 47625 122981
396 旋转函数     中等 0.351 https://leetcode-cn.com/problems/rotate-function 35067 99808
397 整数替换     中等 0.314 https://leetcode-cn.com/problems/integer-replacement 40698 129419
398 随机数索引     中等 0.5 https://leetcode-cn.com/problems/random-pick-index 55860 111611
399 除法求值     中等 0.476 https://leetcode-cn.com/problems/evaluate-division 80659 169421
400 第N个数字     简单 0.303 https://leetcode-cn.com/problems/nth-digit 47842 157698
401 二进制手表     简单 0.453 https://leetcode-cn.com/problems/binary-watch 64055 141295
402 移掉K位数字     中等 0.267 https://leetcode-cn.com/problems/remove-k-digits 61156 229255
403 青蛙过河     困难 0.362 https://leetcode-cn.com/problems/frog-jump 51761 143068
404 左叶子之和     简单 0.491 https://leetcode-cn.com/problems/sum-of-left-leaves 126877 258180
405 数字转换为十六进制数     简单 0.419 https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal 47710 113745
406 根据身高重建队列     中等 0.599 https://leetcode-cn.com/problems/queue-reconstruction-by-height 79934 133470
407 接雨水 II     困难 0.393 https://leetcode-cn.com/problems/trapping-rain-water-ii 27313 69475
408 有效单词缩写     简单 0.295 https://leetcode-cn.com/problems/valid-word-abbreviation Lock
409 最长回文串     简单 0.481 https://leetcode-cn.com/problems/longest-palindrome 97782 203409
410 分割数组的最大值     困难 0.425 https://leetcode-cn.com/problems/split-array-largest-sum 42508 100071
411 最短特异单词缩写     困难 0.35 https://leetcode-cn.com/problems/minimum-unique-word-abbreviation Lock
412 Fizz Buzz     简单 0.596 https://leetcode-cn.com/problems/fizz-buzz 206192 346197
413 等差数列划分     中等 0.559 https://leetcode-cn.com/problems/arithmetic-slices 63012 112777
414 第三大的数     简单 0.29 https://leetcode-cn.com/problems/third-maximum-number 93202 321311
415 字符串相加     简单 0.437 https://leetcode-cn.com/problems/add-strings 97443 222811
416 分割等和子集     中等 0.407 https://leetcode-cn.com/problems/partition-equal-subset-sum 88070 216395
417 太平洋大西洋水流问题     中等 0.375 https://leetcode-cn.com/problems/pacific-atlantic-water-flow 44373 118317
418 屏幕可显示句子的数量     中等 0.311 https://leetcode-cn.com/problems/sentence-screen-fitting Lock
419 甲板上的战舰     中等 0.658 https://leetcode-cn.com/problems/battleships-in-a-board 62679 95273
420 强密码检验器     困难 0.173 https://leetcode-cn.com/problems/strong-password-checker 6391 36863
421 数组中两个数的最大异或值     中等 0.511 https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array 37237 72831
422 有效的单词方块     简单 0.365 https://leetcode-cn.com/problems/valid-word-square Lock
423 从英文中重建数字     中等 0.456 https://leetcode-cn.com/problems/reconstruct-original-digits-from-english 19168 42017
424 替换后的最长重复字符     中等 0.442 https://leetcode-cn.com/problems/longest-repeating-character-replacement 31511 71344
425 单词方块     困难 0.443 https://leetcode-cn.com/problems/word-squares Lock
426 将二叉搜索树转化为排序的双向链表     中等 0.523 https://leetcode-cn.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list Lock
427 建立四叉树     简单 0.57 https://leetcode-cn.com/problems/construct-quad-tree 11551 20278
428 序列化和反序列化 N 叉树     困难 0.539 https://leetcode-cn.com/problems/serialize-and-deserialize-n-ary-tree Lock
429 N叉树的层序遍历     简单 0.596 https://leetcode-cn.com/problems/n-ary-tree-level-order-traversal 33485 56210
430 扁平化多级双向链表     中等 0.424 https://leetcode-cn.com/problems/flatten-a-multilevel-doubly-linked-list 23072 54429
431 将 N 叉树编码为二叉树     困难 0.636 https://leetcode-cn.com/problems/encode-n-ary-tree-to-binary-tree Lock
432 全 O(1) 的数据结构     困难 0.296 https://leetcode-cn.com/problems/all-oone-data-structure 18456 62399
433 最小基因变化     中等 0.382 https://leetcode-cn.com/problems/minimum-genetic-mutation 21582 56569
434 字符串中的单词数     简单 0.369 https://leetcode-cn.com/problems/number-of-segments-in-a-string 56144 152065
435 无重叠区间     中等 0.416 https://leetcode-cn.com/problems/non-overlapping-intervals 39147 94139
436 寻找右区间     中等 0.428 https://leetcode-cn.com/problems/find-right-interval 26481 61832
437 路径总和 III     简单 0.429 https://leetcode-cn.com/problems/path-sum-iii 106922 249422
438 找到字符串中所有字母异位词     简单 0.373 https://leetcode-cn.com/problems/find-all-anagrams-in-a-string 125285 335505
439 三元表达式解析器     中等 0.536 https://leetcode-cn.com/problems/ternary-expression-parser Lock
440 字典序的第K小数字     困难 0.266 https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order 8337 31361
441 排列硬币     简单 0.38 https://leetcode-cn.com/problems/arranging-coins 70069 184454
442 数组中重复的数据     中等 0.611 https://leetcode-cn.com/problems/find-all-duplicates-in-an-array 99127 162340
443 压缩字符串     简单 0.378 https://leetcode-cn.com/problems/string-compression 52977 140176
444 序列重建     中等 0.204 https://leetcode-cn.com/problems/sequence-reconstruction Lock
445 两数相加 II     中等 0.502 https://leetcode-cn.com/problems/add-two-numbers-ii 91874 183057
446 等差数列划分 II - 子序列     困难 0.302 https://leetcode-cn.com/problems/arithmetic-slices-ii-subsequence 14712 48719
447 回旋镖的数量     简单 0.499 https://leetcode-cn.com/problems/number-of-boomerangs 54738 109646
448 找到所有数组中消失的数字     简单 0.535 https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array 154761 289471
449 序列化和反序列化二叉搜索树     中等 0.473 https://leetcode-cn.com/problems/serialize-and-deserialize-bst 59226 125271
450 删除二叉搜索树中的节点     中等 0.4 https://leetcode-cn.com/problems/delete-node-in-a-bst 66724 166636
451 根据字符出现频率排序     中等 0.561 https://leetcode-cn.com/problems/sort-characters-by-frequency 94724 168697
452 用最少数量的箭引爆气球     中等 0.465 https://leetcode-cn.com/problems/minimum-number-of-arrows-to-burst-balloons 38534 82919
453 最小移动次数使数组元素相等     简单 0.492 https://leetcode-cn.com/problems/minimum-moves-to-equal-array-elements 57695 117298
454 四数相加 II     中等 0.507 https://leetcode-cn.com/problems/4sum-ii 66721 131555
455 分发饼干     简单 0.485 https://leetcode-cn.com/problems/assign-cookies 64096 132269
456 132模式     中等 0.274 https://leetcode-cn.com/problems/132-pattern 28743 104988
457 环形数组循环     中等 0.276 https://leetcode-cn.com/problems/circular-array-loop 18607 67322
458 可怜的小猪     困难 0.454 https://leetcode-cn.com/problems/poor-pigs 15574 34288
459 重复的子字符串     简单 0.4 https://leetcode-cn.com/problems/repeated-substring-pattern 80697 201972
460 LFU缓存     困难 0.289 https://leetcode-cn.com/problems/lfu-cache 40133 138758
461 汉明距离     简单 0.704 https://leetcode-cn.com/problems/hamming-distance 240377 341582
462 最少移动次数使数组元素相等 II     中等 0.524 https://leetcode-cn.com/problems/minimum-moves-to-equal-array-elements-ii 35053 66894
463 岛屿的周长     简单 0.61 https://leetcode-cn.com/problems/island-perimeter 134955 221178
464 我能赢吗     中等 0.272 https://leetcode-cn.com/problems/can-i-win 36026 132219
465 最优账单平衡     困难 0.429 https://leetcode-cn.com/problems/optimal-account-balancing Lock
466 统计重复个数     困难 0.274 https://leetcode-cn.com/problems/count-the-repetitions 7869 28763
467 环绕字符串中唯一的子字符串     中等 0.34 https://leetcode-cn.com/problems/unique-substrings-in-wraparound-string 18421 54173
468 验证IP地址     中等 0.213 https://leetcode-cn.com/problems/validate-ip-address 27732 130057
469 凸多边形     中等 0.355 https://leetcode-cn.com/problems/convex-polygon Lock
470 用 Rand7() 实现 Rand10()     中等 0.449 https://leetcode-cn.com/problems/implement-rand10-using-rand7 9083 20219
471 编码最短长度的字符串     困难 0.451 https://leetcode-cn.com/problems/encode-string-with-shortest-length Lock
472 连接词     困难 0.347 https://leetcode-cn.com/problems/concatenated-words 21624 62280
473 火柴拼正方形     中等 0.359 https://leetcode-cn.com/problems/matchsticks-to-square 24653 68665
474 一和零     中等 0.398 https://leetcode-cn.com/problems/ones-and-zeroes 31266 78637
475 供暖器     简单 0.318 https://leetcode-cn.com/problems/heaters 48226 151488
476 数字的补数     简单 0.624 https://leetcode-cn.com/problems/number-complement 107737 172709
477 汉明距离总和     中等 0.489 https://leetcode-cn.com/problems/total-hamming-distance 47300 96630
478 在圆内随机生成点     中等 0.367 https://leetcode-cn.com/problems/generate-random-point-in-a-circle 5295 14436
479 最大回文数乘积     困难 0.274 https://leetcode-cn.com/problems/largest-palindrome-product 14867 54227
480 滑动窗口中位数     困难 0.325 https://leetcode-cn.com/problems/sliding-window-median
481 神奇字符串     中等 0.462 https://leetcode-cn.com/problems/magical-string 18642 40362
482 密钥格式化     简单 0.409 https://leetcode-cn.com/problems/license-key-formatting 80383 196283
483 最小好进制     困难 0.342 https://leetcode-cn.com/problems/smallest-good-base 9911 29000
484 寻找排列     中等 0.575 https://leetcode-cn.com/problems/find-permutation Lock
485 最大连续1的个数     简单 0.551 https://leetcode-cn.com/problems/max-consecutive-ones 138523 251621
486 预测赢家     中等 0.468 https://leetcode-cn.com/problems/predict-the-winner 50103 107118
487 最大连续1的个数 II     中等 0.466 https://leetcode-cn.com/problems/max-consecutive-ones-ii Lock
488 祖玛游戏     困难 0.39 https://leetcode-cn.com/problems/zuma-game 9848 25256
489 扫地机器人     困难 0.643 https://leetcode-cn.com/problems/robot-room-cleaner Lock
490 迷宫     中等 0.474 https://leetcode-cn.com/problems/the-maze Lock
491 递增子序列     中等 0.421 https://leetcode-cn.com/problems/increasing-subsequences 32376 76973
492 构造矩形     简单 0.487 https://leetcode-cn.com/problems/construct-the-rectangle 45344 93068
493 翻转对     困难 0.232 https://leetcode-cn.com/problems/reverse-pairs 24566 106106
494 目标和     中等 0.453 https://leetcode-cn.com/problems/target-sum 96835 213855
495 提莫攻击     中等 0.522 https://leetcode-cn.com/problems/teemo-attacking 36586 70000
496 下一个更大元素 I     简单 0.596 https://leetcode-cn.com/problems/next-greater-element-i 97175 163009
497 非重叠矩形中的随机点     中等 0.358 https://leetcode-cn.com/problems/random-point-in-non-overlapping-rectangles 6620 18502
498 对角线遍历     中等 0.454 https://leetcode-cn.com/problems/diagonal-traverse 43344 95530
499 迷宫 III     困难 0.372 https://leetcode-cn.com/problems/the-maze-iii Lock
500 键盘行     简单 0.623 https://leetcode-cn.com/problems/keyboard-row 88992 142947
501 二叉搜索树中的众数     简单 0.396 https://leetcode-cn.com/problems/find-mode-in-binary-search-tree 56756 143459
502 IPO     困难 0.377 https://leetcode-cn.com/problems/ipo 11710 31050
503 下一个更大元素 II     中等 0.511 https://leetcode-cn.com/problems/next-greater-element-ii 50866 99485
504 七进制数     简单 0.45 https://leetcode-cn.com/problems/base-7 41667 92704
505 迷宫 II     中等 0.439 https://leetcode-cn.com/problems/the-maze-ii Lock
506 相对名次     简单 0.484 https://leetcode-cn.com/problems/relative-ranks 42842 88589
507 完美数     简单 0.343 https://leetcode-cn.com/problems/perfect-number 41218 120019
508 出现次数最多的子树元素和     中等 0.546 https://leetcode-cn.com/problems/most-frequent-subtree-sum 49126 89956
509 斐波那契数     简单 0.668 https://leetcode-cn.com/problems/fibonacci-number 59754 89521
510 二叉搜索树中的中序后继 II     中等 0.526 https://leetcode-cn.com/problems/inorder-successor-in-bst-ii Lock
513 找树左下角的值     中等 0.585 https://leetcode-cn.com/problems/find-bottom-left-tree-value 72073 123267
514 自由之路     困难 0.406 https://leetcode-cn.com/problems/freedom-trail 13298 32755
515 在每个树行中找最大值     中等 0.578 https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row 64395 111341
516 最长回文子序列     中等 0.468 https://leetcode-cn.com/problems/longest-palindromic-subsequence 60870 130069
517 超级洗衣机     困难 0.37 https://leetcode-cn.com/problems/super-washing-machines 12500 33824
518 零钱兑换 II     中等 0.428 https://leetcode-cn.com/problems/coin-change-2 45251 105716
519 随机翻转矩阵     中等 0.331 https://leetcode-cn.com/problems/random-flip-matrix 3860 11652
520 检测大写字母     简单 0.525 https://leetcode-cn.com/problems/detect-capital 85124 162225
521 最长特殊序列 Ⅰ     简单 0.564 https://leetcode-cn.com/problems/longest-uncommon-subsequence-i 46894 83124
522 最长特殊序列 II     中等 0.329 https://leetcode-cn.com/problems/longest-uncommon-subsequence-ii 16746 50927
523 连续的子数组和     中等 0.242 https://leetcode-cn.com/problems/continuous-subarray-sum 66430 274813
524 通过删除字母匹配到字典里最长单词     中等 0.458 https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting 43624 95194
525 连续数组     中等 0.428 https://leetcode-cn.com/problems/contiguous-array 39329 91980
526 优美的排列     中等 0.547 https://leetcode-cn.com/problems/beautiful-arrangement 37472 68556
527 单词缩写     困难 0.5 https://leetcode-cn.com/problems/word-abbreviation Lock
528 按权重随机选择     中等 0.428 https://leetcode-cn.com/problems/random-pick-with-weight 27192 63546
529 扫雷游戏     中等 0.529 https://leetcode-cn.com/problems/minesweeper 33197 62743
530 二叉搜索树的最小绝对差     简单 0.506 https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst 59870 118381
531 孤独像素 I     中等 0.575 https://leetcode-cn.com/problems/lonely-pixel-i Lock
532 数组中的K-diff数对     简单 0.299 https://leetcode-cn.com/problems/k-diff-pairs-in-an-array 65047 217704
533 孤独像素 II     中等 0.462 https://leetcode-cn.com/problems/lonely-pixel-ii Lock
535 TinyURL 的加密与解密     中等 0.768 https://leetcode-cn.com/problems/encode-and-decode-tinyurl 75312 98032
536 从字符串生成二叉树     中等 0.45 https://leetcode-cn.com/problems/construct-binary-tree-from-string Lock
537 复数乘法     中等 0.656 https://leetcode-cn.com/problems/complex-number-multiplication 36564 55764
538 把二叉搜索树转换为累加树     简单 0.51 https://leetcode-cn.com/problems/convert-bst-to-greater-tree 79488 155735
539 最小时间差     中等 0.48 https://leetcode-cn.com/problems/minimum-time-difference 28648 59727
540 有序数组中的单一元素     中等 0.575 https://leetcode-cn.com/problems/single-element-in-a-sorted-array 54970 95641
541 反转字符串 II     简单 0.456 https://leetcode-cn.com/problems/reverse-string-ii 60232 132181
542 01 矩阵     中等 0.358 https://leetcode-cn.com/problems/01-matrix 43924 122812
543 二叉树的直径     简单 0.468 https://leetcode-cn.com/problems/diameter-of-binary-tree 132986 284146
544 输出比赛匹配对     中等 0.735 https://leetcode-cn.com/problems/output-contest-matches Lock
545 二叉树的边界     中等 0.351 https://leetcode-cn.com/problems/boundary-of-binary-tree Lock
546 移除盒子     困难 0.383 https://leetcode-cn.com/problems/remove-boxes 9437 24645
547 朋友圈     中等 0.537 https://leetcode-cn.com/problems/friend-circles 87156 162189
548 将数组分割成和相等的子数组     中等 0.433 https://leetcode-cn.com/problems/split-array-with-equal-sum Lock
549 二叉树中最长的连续序列     中等 0.444 https://leetcode-cn.com/problems/binary-tree-longest-consecutive-sequence-ii Lock
551 学生出勤记录 I     简单 0.453 https://leetcode-cn.com/problems/student-attendance-record-i 51918 114635
552 学生出勤记录 II     困难 0.331 https://leetcode-cn.com/problems/student-attendance-record-ii 12639 38136
553 最优除法     中等 0.554 https://leetcode-cn.com/problems/optimal-division 20501 36986
554 砖墙     中等 0.477 https://leetcode-cn.com/problems/brick-wall 37968 79613
555 分割连接字符串     中等 0.398 https://leetcode-cn.com/problems/split-concatenated-strings Lock
556 下一个更大元素 III     中等 0.3 https://leetcode-cn.com/problems/next-greater-element-iii 26079 86914
557 反转字符串中的单词 III     简单 0.642 https://leetcode-cn.com/problems/reverse-words-in-a-string-iii 127129 197964
558 四叉树交集     简单 0.412 https://leetcode-cn.com/problems/quad-tree-intersection 4590 11138
559 N叉树的最大深度     简单 0.655 https://leetcode-cn.com/problems/maximum-depth-of-n-ary-tree 48047 73380
560 和为K的子数组     中等 0.422 https://leetcode-cn.com/problems/subarray-sum-equals-k 105939 250902
561 数组拆分 I     简单 0.691 https://leetcode-cn.com/problems/array-partition-i 145793 210945
562 矩阵中最长的连续1线段     中等 0.437 https://leetcode-cn.com/problems/longest-line-of-consecutive-one-in-matrix Lock
563 二叉树的坡度     简单 0.47 https://leetcode-cn.com/problems/binary-tree-tilt 52098 110813
564 寻找最近的回文数     困难 0.188 https://leetcode-cn.com/problems/find-the-closest-palindrome 13843 73789
565 数组嵌套     中等 0.526 https://leetcode-cn.com/problems/array-nesting 35461 67386
566 重塑矩阵     简单 0.589 https://leetcode-cn.com/problems/reshape-the-matrix 78012 132364
567 字符串的排列     中等 0.384 https://leetcode-cn.com/problems/permutation-in-string 47625 123886
568 最大休假天数     困难 0.381 https://leetcode-cn.com/problems/maximum-vacation-days Lock
569 员工薪水中位数     困难 0.472 https://leetcode-cn.com/problems/median-employee-salary Lock
570 至少有5名直接下属的经理     中等 0.627 https://leetcode-cn.com/problems/managers-with-at-least-5-direct-reports Lock
571 给定数字的频率查询中位数     困难 0.47 https://leetcode-cn.com/problems/find-median-given-frequency-of-numbers Lock
572 另一个树的子树     简单 0.417 https://leetcode-cn.com/problems/subtree-of-another-tree 101894 244076
573 松鼠模拟     中等 0.536 https://leetcode-cn.com/problems/squirrel-simulation Lock
574 当选者     中等 0.363 https://leetcode-cn.com/problems/winning-candidate Lock
575 分糖果     简单 0.597 https://leetcode-cn.com/problems/distribute-candies 72505 121473
576 出界的路径数     中等 0.321 https://leetcode-cn.com/problems/out-of-boundary-paths 17560 54668
577 员工奖金     简单 0.596 https://leetcode-cn.com/problems/employee-bonus Lock
578 查询回答率最高的问题     中等 0.355 https://leetcode-cn.com/problems/get-highest-answer-rate-question Lock
579 查询员工的累计薪水     困难 0.343 https://leetcode-cn.com/problems/find-cumulative-salary-of-an-employee Lock
580 统计各专业学生人数     中等 0.428 https://leetcode-cn.com/problems/count-student-number-in-departments Lock
581 最短无序连续子数组     简单 0.301 https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray 67983 226133
582 杀死进程     中等 0.564 https://leetcode-cn.com/problems/kill-process Lock
583 两个字符串的删除操作     中等 0.45 https://leetcode-cn.com/problems/delete-operation-for-two-strings 31251 69472
584 寻找用户推荐人     简单 0.677 https://leetcode-cn.com/problems/find-customer-referee Lock
585 2016年的投资     中等 0.475 https://leetcode-cn.com/problems/investments-in-2016 Lock
586 订单最多的客户     简单 0.666 https://leetcode-cn.com/problems/customer-placing-the-largest-number-of-orders Lock
587 安装栅栏     困难 0.343 https://leetcode-cn.com/problems/erect-the-fence 6929 20188
588 设计内存文件系统     困难 0.397 https://leetcode-cn.com/problems/design-in-memory-file-system Lock
589 N叉树的前序遍历     简单 0.676 https://leetcode-cn.com/problems/n-ary-tree-preorder-traversal 43620 64545
590 N叉树的后序遍历     简单 0.676 https://leetcode-cn.com/problems/n-ary-tree-postorder-traversal 39770 58829
591 标签验证器     困难 0.328 https://leetcode-cn.com/problems/tag-validator 5219 15913
592 分数加减运算     中等 0.471 https://leetcode-cn.com/problems/fraction-addition-and-subtraction 13066 27758
593 有效的正方形     中等 0.406 https://leetcode-cn.com/problems/valid-square 19598 48318
594 最长和谐子序列     简单 0.438 https://leetcode-cn.com/problems/longest-harmonious-subsequence 36704 83749
595 大的国家     简单 0.738 https://leetcode-cn.com/problems/big-countries 111801 151423
596 超过5名学生的课     简单 0.357 https://leetcode-cn.com/problems/classes-more-than-5-students 45421 127305
597 好友申请 I ：总体通过率     简单 0.396 https://leetcode-cn.com/problems/friend-requests-i-overall-acceptance-rate Lock
598 范围求和 II     简单 0.487 https://leetcode-cn.com/problems/range-addition-ii 31143 63916
599 两个列表的最小索引总和     简单 0.48 https://leetcode-cn.com/problems/minimum-index-sum-of-two-lists 57455 119699
600 不含连续1的非负整数     困难 0.327 https://leetcode-cn.com/problems/non-negative-integers-without-consecutive-ones 8668 26472
601 体育馆的人流量     困难 0.366 https://leetcode-cn.com/problems/human-traffic-of-stadium 14370 39270
602 好友申请 II ：谁有最多的好友     中等 0.45 https://leetcode-cn.com/problems/friend-requests-ii-who-has-the-most-friends Lock
603 连续空余座位     简单 0.585 https://leetcode-cn.com/problems/consecutive-available-seats Lock
604 迭代压缩字符串     简单 0.348 https://leetcode-cn.com/problems/design-compressed-string-iterator Lock
605 种花问题     简单 0.309 https://leetcode-cn.com/problems/can-place-flowers 61675 199422
606 根据二叉树创建字符串     简单 0.516 https://leetcode-cn.com/problems/construct-string-from-binary-tree 59128 114605
607 销售员     简单 0.571 https://leetcode-cn.com/problems/sales-person Lock
608 树节点     中等 0.589 https://leetcode-cn.com/problems/tree-node Lock
609 在系统中查找重复文件     中等 0.552 https://leetcode-cn.com/problems/find-duplicate-file-in-system 27365 49570
610 判断三角形     简单 0.615 https://leetcode-cn.com/problems/triangle-judgement Lock
611 有效三角形的个数     中等 0.452 https://leetcode-cn.com/problems/valid-triangle-number 37483 82842
612 平面上的最近距离     中等 0.537 https://leetcode-cn.com/problems/shortest-distance-in-a-plane Lock
613 直线上的最近距离     简单 0.73 https://leetcode-cn.com/problems/shortest-distance-in-a-line Lock
614 二级关注者     中等 0.226 https://leetcode-cn.com/problems/second-degree-follower Lock
615 平均工资：部门与公司比较     困难 0.377 https://leetcode-cn.com/problems/average-salary-departments-vs-company Lock
616 给字符串添加加粗标签     中等 0.391 https://leetcode-cn.com/problems/add-bold-tag-in-string Lock
617 合并二叉树     简单 0.702 https://leetcode-cn.com/problems/merge-two-binary-trees 178367 253955
618 学生地理信息报告     困难 0.429 https://leetcode-cn.com/problems/students-report-by-geography Lock
619 只出现一次的最大数字     简单 0.389 https://leetcode-cn.com/problems/biggest-single-number Lock
620 有趣的电影     简单 0.623 https://leetcode-cn.com/problems/not-boring-movies 63932 102579
621 任务调度器     中等 0.455 https://leetcode-cn.com/problems/task-scheduler 87310 191885
622 设计循环队列     中等 0.393 https://leetcode-cn.com/problems/design-circular-queue 26283 66843
623 在二叉树中增加一行     中等 0.473 https://leetcode-cn.com/problems/add-one-row-to-tree 26430 55853
624 数组列表中的最大距离     简单 0.373 https://leetcode-cn.com/problems/maximum-distance-in-arrays Lock
625 最小因式分解     中等 0.319 https://leetcode-cn.com/problems/minimum-factorization Lock
626 换座位     中等 0.546 https://leetcode-cn.com/problems/exchange-seats 24899 45569
627 交换工资     简单 0.689 https://leetcode-cn.com/problems/swap-salary 66574 96678
628 三个数的最大乘积     简单 0.46 https://leetcode-cn.com/problems/maximum-product-of-three-numbers 70863 153933
629 K个逆序对数组     困难 0.293 https://leetcode-cn.com/problems/k-inverse-pairs-array 7853 26812
630 课程表 III     困难 0.316 https://leetcode-cn.com/problems/course-schedule-iii 11614 36716
631 设计 Excel 求和公式     困难 0.292 https://leetcode-cn.com/problems/design-excel-sum-formula Lock
632 最小区间     困难 0.475 https://leetcode-cn.com/problems/smallest-range 23239 48943
633 平方数之和     简单 0.327 https://leetcode-cn.com/problems/sum-of-square-numbers 44509 136075
634 寻找数组的错位排列     中等 0.376 https://leetcode-cn.com/problems/find-the-derangement-of-an-array Lock
635 设计日志存储系统     中等 0.541 https://leetcode-cn.com/problems/design-log-storage-system Lock
636 函数的独占时间     中等 0.487 https://leetcode-cn.com/problems/exclusive-time-of-functions 40311 82831
637 二叉树的层平均值     简单 0.588 https://leetcode-cn.com/problems/average-of-levels-in-binary-tree 79533 135254
638 大礼包     中等 0.487 https://leetcode-cn.com/problems/shopping-offers 21297 43706
639 解码方法 2     困难 0.251 https://leetcode-cn.com/problems/decode-ways-ii 21684 86219
640 求解方程     中等 0.403 https://leetcode-cn.com/problems/solve-the-equation
641 设计循环双端队列     中等 0.494 https://leetcode-cn.com/problems/design-circular-deque 6816 13798
642 设计搜索自动补全系统     困难 0.379 https://leetcode-cn.com/problems/design-search-autocomplete-system Lock
643 子数组最大平均数 I     简单 0.396 https://leetcode-cn.com/problems/maximum-average-subarray-i 52014 131432
644 最大平均子段和 II     困难 0.286 https://leetcode-cn.com/problems/maximum-average-subarray-ii Lock
645 错误的集合     简单 0.407 https://leetcode-cn.com/problems/set-mismatch 47931 117644
646 最长数对链     中等 0.488 https://leetcode-cn.com/problems/maximum-length-of-pair-chain 36470 74717
647 回文子串     中等 0.57 https://leetcode-cn.com/problems/palindromic-substrings 99901 175168
648 单词替换     中等 0.52 https://leetcode-cn.com/problems/replace-words 34509 66357
649 Dota2 参议院     中等 0.376 https://leetcode-cn.com/problems/dota2-senate 8621 22890
650 只有两个键的键盘     中等 0.466 https://leetcode-cn.com/problems/2-keys-keyboard 34244 73464
651 4键键盘     中等 0.506 https://leetcode-cn.com/problems/4-keys-keyboard Lock
652 寻找重复的子树     中等 0.456 https://leetcode-cn.com/problems/find-duplicate-subtrees 37872 83063
653 两数之和 IV - 输入 BST     简单 0.525 https://leetcode-cn.com/problems/two-sum-iv-input-is-a-bst 88495 168532
654 最大二叉树     中等 0.762 https://leetcode-cn.com/problems/maximum-binary-tree 84590 111059
655 输出二叉树     中等 0.519 https://leetcode-cn.com/problems/print-binary-tree 20971 40418
656 金币路径     困难 0.268 https://leetcode-cn.com/problems/coin-path Lock
657 机器人能否返回原点     简单 0.716 https://leetcode-cn.com/problems/robot-return-to-origin 162655 227265
658 找到 K 个最接近的元素     中等 0.38 https://leetcode-cn.com/problems/find-k-closest-elements 55655 146286
659 分割数组为连续子序列     中等 0.407 https://leetcode-cn.com/problems/split-array-into-consecutive-subsequences 20550 50505
660 移除 9     困难 0.515 https://leetcode-cn.com/problems/remove-9 Lock
661 图片平滑器     简单 0.488 https://leetcode-cn.com/problems/image-smoother 35527 72732
662 二叉树最大宽度     中等 0.397 https://leetcode-cn.com/problems/maximum-width-of-binary-tree 33359 84099
663 均匀树划分     中等 0.381 https://leetcode-cn.com/problems/equal-tree-partition Lock
664 奇怪的打印机     困难 0.367 https://leetcode-cn.com/problems/strange-printer 9028 24572
665 非递减数列     简单 0.195 https://leetcode-cn.com/problems/non-decreasing-array 53035 272264
666 路径和 IV     中等 0.522 https://leetcode-cn.com/problems/path-sum-iv Lock
667 优美的排列 II     中等 0.52 https://leetcode-cn.com/problems/beautiful-arrangement-ii 18166 34946
668 乘法表中第k小的数     困难 0.42 https://leetcode-cn.com/problems/kth-smallest-number-in-multiplication-table 12299 29311
669 修剪二叉搜索树     简单 0.603 https://leetcode-cn.com/problems/trim-a-binary-search-tree 66467 110155
670 最大交换     中等 0.397 https://leetcode-cn.com/problems/maximum-swap 36463 91904
671 二叉树中第二小的节点     简单 0.435 https://leetcode-cn.com/problems/second-minimum-node-in-a-binary-tree 49056 112842
672 灯泡开关 Ⅱ     中等 0.5 https://leetcode-cn.com/problems/bulb-switcher-ii 9511 18998
673 最长递增子序列的个数     中等 0.336 https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence 30707 91399
674 最长连续递增序列     简单 0.443 https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence 67448 152116
675 为高尔夫比赛砍树     困难 0.307 https://leetcode-cn.com/problems/cut-off-trees-for-golf-event 15718 51134
676 实现一个魔法字典     中等 0.517 https://leetcode-cn.com/problems/implement-magic-dictionary 25542 49436
677 键值映射     中等 0.516 https://leetcode-cn.com/problems/map-sum-pairs 26325 51025
678 有效的括号字符串     中等 0.327 https://leetcode-cn.com/problems/valid-parenthesis-string 28671 87574
679 24 点游戏     困难 0.429 https://leetcode-cn.com/problems/24-game 20765 48412
680 验证回文字符串 Ⅱ     简单 0.343 https://leetcode-cn.com/problems/valid-palindrome-ii 74648 217812
681 最近时刻     中等 0.426 https://leetcode-cn.com/problems/next-closest-time Lock
682 棒球比赛     简单 0.611 https://leetcode-cn.com/problems/baseball-game 54184 88738
683 K 个空花盆     困难 0.341 https://leetcode-cn.com/problems/k-empty-slots Lock
684 冗余连接     中等 0.519 https://leetcode-cn.com/problems/redundant-connection 51011 98249
685 冗余连接 II     困难 0.307 https://leetcode-cn.com/problems/redundant-connection-ii 22741 73973
686 重复叠加字符串匹配     简单 0.314 https://leetcode-cn.com/problems/repeated-string-match 68170 216920
687 最长同值路径     简单 0.338 https://leetcode-cn.com/problems/longest-univalue-path 59472 176012
688 “马”在棋盘上的概率     中等 0.445 https://leetcode-cn.com/problems/knight-probability-in-chessboard 20726 46543
689 三个无重叠子数组的最大和     困难 0.442 https://leetcode-cn.com/problems/maximum-sum-of-3-non-overlapping-subarrays 25805 58413
690 员工的重要性     简单 0.542 https://leetcode-cn.com/problems/employee-importance 46372 85571
691 贴纸拼词     困难 0.383 https://leetcode-cn.com/problems/stickers-to-spell-word 8372 21868
692 前K个高频单词     中等 0.458 https://leetcode-cn.com/problems/top-k-frequent-words 64903 141742
693 交替位二进制数     简单 0.579 https://leetcode-cn.com/problems/binary-number-with-alternating-bits 41722 72000
694 不同岛屿的数量     中等 0.512 https://leetcode-cn.com/problems/number-of-distinct-islands Lock
695 岛屿的最大面积     中等 0.573 https://leetcode-cn.com/problems/max-area-of-island 83687 145916
696 计数二进制子串     简单 0.535 https://leetcode-cn.com/problems/count-binary-substrings 31074 58121
697 数组的度     简单 0.505 https://leetcode-cn.com/problems/degree-of-an-array 49990 99007
698 划分为k个相等的子集     中等 0.424 https://leetcode-cn.com/problems/partition-to-k-equal-sum-subsets 43009 101366
699 掉落的方块     困难 0.401 https://leetcode-cn.com/problems/falling-squares 8979 22419
700 二叉搜索树中的搜索     简单 0.682 https://leetcode-cn.com/problems/search-in-a-binary-search-tree 60535 88712
701 二叉搜索树中的插入操作     中等 0.759 https://leetcode-cn.com/problems/insert-into-a-binary-search-tree 45404 59826
702 搜索长度未知的有序数组     中等 0.589 https://leetcode-cn.com/problems/search-in-a-sorted-array-of-unknown-size Lock
703 数据流中的第K大元素     简单 0.464 https://leetcode-cn.com/problems/kth-largest-element-in-a-stream 33535 72275
704 二分查找     简单 0.477 https://leetcode-cn.com/problems/binary-search 51579 108007
705 设计哈希集合     简单 0.538 https://leetcode-cn.com/problems/design-hashset 21247 39489
706 设计哈希映射     简单 0.561 https://leetcode-cn.com/problems/design-hashmap 33806 60286
707 设计链表     简单 0.22 https://leetcode-cn.com/problems/design-linked-list 26958 122878
708 循环有序列表的插入     中等 0.29 https://leetcode-cn.com/problems/insert-into-a-cyclic-sorted-list Lock
709 转换成小写字母     简单 0.769 https://leetcode-cn.com/problems/to-lower-case 109345 142184
710 黑名单中的随机数     困难 0.312 https://leetcode-cn.com/problems/random-pick-with-blacklist 6107 19580
711 不同岛屿的数量 II     困难 0.461 https://leetcode-cn.com/problems/number-of-distinct-islands-ii Lock
712 两个字符串的最小ASCII删除和     中等 0.546 https://leetcode-cn.com/problems/minimum-ascii-delete-sum-for-two-strings 20857 38184
713 乘积小于K的子数组     中等 0.367 https://leetcode-cn.com/problems/subarray-product-less-than-k 29854 81373
714 买卖股票的最佳时机含手续费     中等 0.505 https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee 39766 78655
715 Range 模块     困难 0.356 https://leetcode-cn.com/problems/range-module 11597 32617
716 最大栈     简单 0.401 https://leetcode-cn.com/problems/max-stack Lock
717 1比特与2比特字符     简单 0.492 https://leetcode-cn.com/problems/1-bit-and-2-bit-characters 41238 83762
718 最长重复子数组     中等 0.461 https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray 34000 73825
719 找出第 k 小的距离对     困难 0.291 https://leetcode-cn.com/problems/find-k-th-smallest-pair-distance 19832 67994
720 词典中最长的单词     简单 0.447 https://leetcode-cn.com/problems/longest-word-in-dictionary 35731 79880
721 账户合并     中等 0.405 https://leetcode-cn.com/problems/accounts-merge 33589 82894
722 删除注释     中等 0.313 https://leetcode-cn.com/problems/remove-comments 15469 49483
723 粉碎糖果     中等 0.634 https://leetcode-cn.com/problems/candy-crush Lock
724 寻找数组的中心索引     简单 0.412 https://leetcode-cn.com/problems/find-pivot-index 70583 171353
725 分隔链表     中等 0.489 https://leetcode-cn.com/problems/split-linked-list-in-parts 27734 56651
726 原子的数量     困难 0.447 https://leetcode-cn.com/problems/number-of-atoms 10841 24263
727 最小窗口子序列     困难 0.373 https://leetcode-cn.com/problems/minimum-window-subsequence Lock
728 自除数     简单 0.702 https://leetcode-cn.com/problems/self-dividing-numbers 79072 112607
729 我的日程安排表 I     中等 0.474 https://leetcode-cn.com/problems/my-calendar-i 32356 68269
730 统计不同回文子字符串     困难 0.389 https://leetcode-cn.com/problems/count-different-palindromic-subsequences 8632 22174
731 我的日程安排表 II     中等 0.445 https://leetcode-cn.com/problems/my-calendar-ii 23326 52406
732 我的日程安排表 III     困难 0.549 https://leetcode-cn.com/problems/my-calendar-iii 12684 23090
733 图像渲染     简单 0.509 https://leetcode-cn.com/problems/flood-fill 48485 95190
734 句子相似性     简单 0.407 https://leetcode-cn.com/problems/sentence-similarity Lock
735 行星碰撞     中等 0.385 https://leetcode-cn.com/problems/asteroid-collision 25260 65603
736 Lisp 语法解析     困难 0.444 https://leetcode-cn.com/problems/parse-lisp-expression 6508 14674
737 句子相似性 II     中等 0.434 https://leetcode-cn.com/problems/sentence-similarity-ii Lock
738 单调递增的数字     中等 0.418 https://leetcode-cn.com/problems/monotone-increasing-digits 13676 32703
739 每日温度     中等 0.6 https://leetcode-cn.com/problems/daily-temperatures 67957 113206
740 删除与获得点数     中等 0.459 https://leetcode-cn.com/problems/delete-and-earn 21864 47596
741 摘樱桃     困难 0.298 https://leetcode-cn.com/problems/cherry-pickup 9583 32143
742 二叉树最近的叶节点     中等 0.39 https://leetcode-cn.com/problems/closest-leaf-in-a-binary-tree Lock
743 网络延迟时间     中等 0.421 https://leetcode-cn.com/problems/network-delay-time 34267 81411
744 寻找比目标字母大的最小字母     简单 0.441 https://leetcode-cn.com/problems/find-smallest-letter-greater-than-target 41481 94117
745 前缀和后缀搜索     困难 0.307 https://leetcode-cn.com/problems/prefix-and-suffix-search 12395 40407
746 使用最小花费爬楼梯     简单 0.473 https://leetcode-cn.com/problems/min-cost-climbing-stairs 81911 173290
747 至少是其他数字两倍的最大数     简单 0.406 https://leetcode-cn.com/problems/largest-number-at-least-twice-of-others 51569 127133
748 最短完整词     简单 0.543 https://leetcode-cn.com/problems/shortest-completing-word 20485 37717
749 隔离病毒     困难 0.412 https://leetcode-cn.com/problems/contain-virus 2919 7085
750 角矩形的数量     中等 0.646 https://leetcode-cn.com/problems/number-of-corner-rectangles Lock
751 IP 到 CIDR     简单 0.595 https://leetcode-cn.com/problems/ip-to-cidr Lock
752 打开转盘锁     中等 0.461 https://leetcode-cn.com/problems/open-the-lock 22116 47947
753 破解保险箱     困难 0.464 https://leetcode-cn.com/problems/cracking-the-safe 15071 32493
754 到达终点数字     简单 0.326 https://leetcode-cn.com/problems/reach-a-number 10476 32091
755 倒水     中等 0.405 https://leetcode-cn.com/problems/pour-water Lock
756 金字塔转换矩阵     中等 0.516 https://leetcode-cn.com/problems/pyramid-transition-matrix 13361 25904
757 设置交集大小至少为2     困难 0.37 https://leetcode-cn.com/problems/set-intersection-size-at-least-two 4569 12346
758 字符串中的加粗单词     简单 0.424 https://leetcode-cn.com/problems/bold-words-in-string Lock
759 员工空闲时间     困难 0.613 https://leetcode-cn.com/problems/employee-free-time Lock
760 找出变位映射     简单 0.794 https://leetcode-cn.com/problems/find-anagram-mappings Lock
761 特殊的二进制序列     困难 0.515 https://leetcode-cn.com/problems/special-binary-string 4762 9256
762 二进制表示中质数个计算置位     简单 0.593 https://leetcode-cn.com/problems/prime-number-of-set-bits-in-binary-representation 29010 48911
763 划分字母区间     中等 0.705 https://leetcode-cn.com/problems/partition-labels 49096 69678
764 最大加号标志     中等 0.433 https://leetcode-cn.com/problems/largest-plus-sign 13274 30641
765 情侣牵手     困难 0.515 https://leetcode-cn.com/problems/couples-holding-hands 14621 28373
766 托普利茨矩阵     简单 0.618 https://leetcode-cn.com/problems/toeplitz-matrix 61030 98797
767 重构字符串     中等 0.424 https://leetcode-cn.com/problems/reorganize-string 27190 64143
768 最多能完成排序的块 II     困难 0.459 https://leetcode-cn.com/problems/max-chunks-to-make-sorted-ii 12086 26321
769 最多能完成排序的块     中等 0.517 https://leetcode-cn.com/problems/max-chunks-to-make-sorted
770 基本计算器 IV     困难 0.454 https://leetcode-cn.com/problems/basic-calculator-iv 2234 4916
771 宝石与石头     简单 0.831 https://leetcode-cn.com/problems/jewels-and-stones 259394 312016
772 基本计算器 III     困难 0.443 https://leetcode-cn.com/problems/basic-calculator-iii Lock
773 滑动谜题     困难 0.525 https://leetcode-cn.com/problems/sliding-puzzle 15976 30438
774 最小化去加油站的最大距离     困难 0.417 https://leetcode-cn.com/problems/minimize-max-distance-to-gas-station Lock
775 全局倒置与局部倒置     中等 0.389 https://leetcode-cn.com/problems/global-and-local-inversions 12714 32654
776 拆分二叉搜索树     中等 0.526 https://leetcode-cn.com/problems/split-bst Lock
777 在LR字符串中交换相邻字符     中等 0.333 https://leetcode-cn.com/problems/swap-adjacent-in-lr-string 14896 44658
778 水位上升的泳池中游泳     困难 0.478 https://leetcode-cn.com/problems/swim-in-rising-water 12202 25568
779 第K个语法符号     中等 0.375 https://leetcode-cn.com/problems/k-th-symbol-in-grammar 14336 38245
780 到达终点     困难 0.275 https://leetcode-cn.com/problems/reaching-points 8933 32453
781 森林中的兔子     中等 0.518 https://leetcode-cn.com/problems/rabbits-in-forest 13040 25173
782 变为棋盘     困难 0.397 https://leetcode-cn.com/problems/transform-to-chessboard 3026 7617
783 二叉搜索树结点最小距离     简单 0.505 https://leetcode-cn.com/problems/minimum-distance-between-bst-nodes 33385 66047
784 字母大小写全排列     简单 0.57 https://leetcode-cn.com/problems/letter-case-permutation 46837 82152
785 判断二分图     中等 0.434 https://leetcode-cn.com/problems/is-graph-bipartite 43942 101322
786 第 K 个最小的素数分数     困难 0.398 https://leetcode-cn.com/problems/k-th-smallest-prime-fraction 7944 19942
787 K 站中转内最便宜的航班     中等 0.349 https://leetcode-cn.com/problems/cheapest-flights-within-k-stops 40986 117343
788 旋转数字     简单 0.542 https://leetcode-cn.com/problems/rotated-digits 27740 51151
789 逃脱阻碍者     中等 0.553 https://leetcode-cn.com/problems/escape-the-ghosts 10148 18337
790 多米诺和托米诺平铺     中等 0.358 https://leetcode-cn.com/problems/domino-and-tromino-tiling 8219 22925
791 自定义字符串排序     中等 0.621 https://leetcode-cn.com/problems/custom-sort-string 34437 55439
792 匹配子序列的单词数     中等 0.431 https://leetcode-cn.com/problems/number-of-matching-subsequences 20635 47867
793 阶乘函数后K个零     困难 0.39 https://leetcode-cn.com/problems/preimage-size-of-factorial-zeroes-function 5540 14211
794 有效的井字游戏     中等 0.295 https://leetcode-cn.com/problems/valid-tic-tac-toe-state 11267 38160
795 区间子数组个数     中等 0.432 https://leetcode-cn.com/problems/number-of-subarrays-with-bounded-maximum
796 旋转字符串     简单 0.491 https://leetcode-cn.com/problems/rotate-string 40465 82477
797 所有可能的路径     中等 0.705 https://leetcode-cn.com/problems/all-paths-from-source-to-target 28238 40027
798 得分最高的最小轮调     困难 0.403 https://leetcode-cn.com/problems/smallest-rotation-with-highest-score 4322 10729
799 香槟塔     中等 0.341 https://leetcode-cn.com/problems/champagne-tower
800 相似 RGB 颜色     简单 0.597 https://leetcode-cn.com/problems/similar-rgb-color Lock
801 使序列递增的最小交换次数     中等 0.347 https://leetcode-cn.com/problems/minimum-swaps-to-make-sequences-increasing 13826 39849
802 找到最终的安全状态     中等 0.437 https://leetcode-cn.com/problems/find-eventual-safe-states 17421 39846
803 打砖块     困难 0.287 https://leetcode-cn.com/problems/bricks-falling-when-hit 10428 36365
804 唯一摩尔斯密码词     简单 0.747 https://leetcode-cn.com/problems/unique-morse-code-words 88239 118038
805 数组的均值分割     困难 0.243 https://leetcode-cn.com/problems/split-array-with-same-average 9079 37302
806 写字符串需要的行数     简单 0.631 https://leetcode-cn.com/problems/number-of-lines-to-write-string 27963 44284
807 保持城市天际线     中等 0.815 https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline 47156 57875
808 分汤     中等 0.374 https://leetcode-cn.com/problems/soup-servings 6150 16420
809 情感丰富的文字     中等 0.435 https://leetcode-cn.com/problems/expressive-words 13178 30262
810 黑板异或游戏     困难 0.449 https://leetcode-cn.com/problems/chalkboard-xor-game 2665 5932
811 子域名访问计数     简单 0.654 https://leetcode-cn.com/problems/subdomain-visit-count 43416 66376
812 最大三角形面积     简单 0.561 https://leetcode-cn.com/problems/largest-triangle-area 14624 26060
813 最大平均值和的分组     中等 0.452 https://leetcode-cn.com/problems/largest-sum-of-averages 13245 29294
814 二叉树剪枝     中等 0.71 https://leetcode-cn.com/problems/binary-tree-pruning 34219 48159
815 公交路线     困难 0.401 https://leetcode-cn.com/problems/bus-routes 21192 52858
816 模糊坐标     中等 0.441 https://leetcode-cn.com/problems/ambiguous-coordinates
817 链表组件     中等 0.546 https://leetcode-cn.com/problems/linked-list-components 24910 45589
818 赛车     困难 0.35 https://leetcode-cn.com/problems/race-car 9891 28250
819 最常见的单词     简单 0.422 https://leetcode-cn.com/problems/most-common-word 55292 131028
820 单词的压缩编码     中等 0.472 https://leetcode-cn.com/problems/short-encoding-of-words 8428 17837
821 字符的最短距离     简单 0.634 https://leetcode-cn.com/problems/shortest-distance-to-a-character 37506 59115
822 翻转卡片游戏     中等 0.404 https://leetcode-cn.com/problems/card-flipping-game 6046 14988
823 带因子的二叉树     中等 0.325 https://leetcode-cn.com/problems/binary-trees-with-factors 7121 21906
824 山羊拉丁文     简单 0.578 https://leetcode-cn.com/problems/goat-latin 32037 55444
825 适龄的朋友     中等 0.363 https://leetcode-cn.com/problems/friends-of-appropriate-ages 15428 42501
826 安排工作以达到最大收益     中等 0.357 https://leetcode-cn.com/problems/most-profit-assigning-work 10788 30249
827 最大人工岛     困难 0.433 https://leetcode-cn.com/problems/making-a-large-island 9628 22239
828 独特字符串     困难 0.395 https://leetcode-cn.com/problems/unique-letter-string 5249 13279
829 连续整数求和     困难 0.333 https://leetcode-cn.com/problems/consecutive-numbers-sum 11627 34911
830 较大分组的位置     简单 0.478 https://leetcode-cn.com/problems/positions-of-large-groups 26795 56012
831 隐藏个人信息     中等 0.421 https://leetcode-cn.com/problems/masking-personal-information 6707 15924
832 翻转图像     简单 0.726 https://leetcode-cn.com/problems/flipping-an-image 97541 134290
833 字符串中的查找与替换     中等 0.463 https://leetcode-cn.com/problems/find-and-replace-in-string 18234 39365
834 树中距离之和     困难 0.395 https://leetcode-cn.com/problems/sum-of-distances-in-tree 7789 19690
835 图像重叠     中等 0.525 https://leetcode-cn.com/problems/image-overlap 11222 21370
836 矩形重叠     简单 0.465 https://leetcode-cn.com/problems/rectangle-overlap 25006 53732
837 新21点     中等 0.316 https://leetcode-cn.com/problems/new-21-game 8465 26751
838 推多米诺     中等 0.437 https://leetcode-cn.com/problems/push-dominoes 11664 26682
839 相似字符串组     困难 0.345 https://leetcode-cn.com/problems/similar-string-groups 8429 24416
840 矩阵中的幻方     简单 0.355 https://leetcode-cn.com/problems/magic-squares-in-grid 12838 36117
841 钥匙和房间     中等 0.603 https://leetcode-cn.com/problems/keys-and-rooms 34425 57085
842 将数组拆分成斐波那契序列     中等 0.347 https://leetcode-cn.com/problems/split-array-into-fibonacci-sequence 10431 30068
843 猜猜这个单词     困难 0.436 https://leetcode-cn.com/problems/guess-the-word 20490 47035
844 比较含退格的字符串     简单 0.46 https://leetcode-cn.com/problems/backspace-string-compare 57700 125414
845 数组中的最长山脉     中等 0.343 https://leetcode-cn.com/problems/longest-mountain-in-array 17549 51212
846 一手顺子     中等 0.493 https://leetcode-cn.com/problems/hand-of-straights
847 访问所有节点的最短路径     困难 0.468 https://leetcode-cn.com/problems/shortest-path-visiting-all-nodes 8016 17135
848 字母移位     中等 0.408 https://leetcode-cn.com/problems/shifting-letters 13099 32116
849 到最近的人的最大距离     简单 0.409 https://leetcode-cn.com/problems/maximize-distance-to-closest-person 32558 79555
850 矩形面积 II     困难 0.449 https://leetcode-cn.com/problems/rectangle-area-ii 6710 14934
851 喧闹和富有     中等 0.476 https://leetcode-cn.com/problems/loud-and-rich 7709 16191
852 山脉数组的峰顶索引     简单 0.696 https://leetcode-cn.com/problems/peak-index-in-a-mountain-array 76594 109968
853 车队     中等 0.397 https://leetcode-cn.com/problems/car-fleet 15228 38342
854 相似度为 K 的字符串     困难 0.334 https://leetcode-cn.com/problems/k-similar-strings 7442 22261
855 考场就座     中等 0.383 https://leetcode-cn.com/problems/exam-room 15029 39244
856 括号的分数     中等 0.563 https://leetcode-cn.com/problems/score-of-parentheses 18480 32845
857 雇佣 K 名工人的最低成本     困难 0.474 https://leetcode-cn.com/problems/minimum-cost-to-hire-k-workers 17423 36783
858 镜面反射     中等 0.52 https://leetcode-cn.com/problems/mirror-reflection 6593 12682
859 亲密字符串     简单 0.276 https://leetcode-cn.com/problems/buddy-strings 24741 89534
860 柠檬水找零     简单 0.505 https://leetcode-cn.com/problems/lemonade-change 27340 54157
861 翻转矩阵后的得分     中等 0.695 https://leetcode-cn.com/problems/score-after-flipping-matrix 12172 17504
862 和至少为 K 的最短子数组     困难 0.222 https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k 12762 57503
863 二叉树中所有距离为 K 的结点     中等 0.475 https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree 22895 48218
864 获取所有钥匙的最短路径     困难 0.36 https://leetcode-cn.com/problems/shortest-path-to-get-all-keys 4893 13578
865 具有所有最深结点的最小子树     中等 0.557 https://leetcode-cn.com/problems/smallest-subtree-with-all-the-deepest-nodes 17765 31877
866 回文素数     中等 0.202 https://leetcode-cn.com/problems/prime-palindrome 7220 35799
867 转置矩阵     简单 0.64 https://leetcode-cn.com/problems/transpose-matrix 45973 71901
868 二进制间距     简单 0.595 https://leetcode-cn.com/problems/binary-gap 23346 39262
869 重新排序得到 2 的幂     中等 0.51 https://leetcode-cn.com/problems/reordered-power-of-2 9318 18264
870 优势洗牌     中等 0.425 https://leetcode-cn.com/problems/advantage-shuffle 11248 26484
871 最低加油次数     困难 0.289 https://leetcode-cn.com/problems/minimum-number-of-refueling-stops 7700 26642
872 叶子相似的树     简单 0.632 https://leetcode-cn.com/problems/leaf-similar-trees 45042 71234
873 最长的斐波那契子序列的长度     中等 0.462 https://leetcode-cn.com/problems/length-of-longest-fibonacci-subsequence 15693 33970
874 模拟行走机器人     简单 0.32 https://leetcode-cn.com/problems/walking-robot-simulation 10018 31292
875 爱吃香蕉的珂珂     中等 0.461 https://leetcode-cn.com/problems/koko-eating-bananas 13094 28387
876 链表的中间结点     简单 0.641 https://leetcode-cn.com/problems/middle-of-the-linked-list 63332 98744
877 石子游戏     中等 0.614 https://leetcode-cn.com/problems/stone-game 25976 42319
878 第 N 个神奇数字     困难 0.255 https://leetcode-cn.com/problems/nth-magical-number 5273 20664
879 盈利计划     困难 0.367 https://leetcode-cn.com/problems/profitable-schemes 5552 15134
880 索引处的解码字符串     中等 0.23 https://leetcode-cn.com/problems/decoded-string-at-index 6931 30163
881 救生艇     中等 0.437 https://leetcode-cn.com/problems/boats-to-save-people 15139 34617
882 细分图中的可到达结点     困难 0.38 https://leetcode-cn.com/problems/reachable-nodes-in-subdivided-graph 3279 8626
883 三维形体投影面积     简单 0.658 https://leetcode-cn.com/problems/projection-area-of-3d-shapes 18231 27723
884 两句话中的不常见单词     简单 0.608 https://leetcode-cn.com/problems/uncommon-words-from-two-sentences 30751 50556
885 螺旋矩阵 III     中等 0.641 https://leetcode-cn.com/problems/spiral-matrix-iii 8798 13738
886 可能的二分法     中等 0.407 https://leetcode-cn.com/problems/possible-bipartition 13258 32607
887 鸡蛋掉落     困难 0.249 https://leetcode-cn.com/problems/super-egg-drop 7002 28118
888 公平的糖果交换     简单 0.568 https://leetcode-cn.com/problems/fair-candy-swap 27695 48737
889 根据前序和后序遍历构造二叉树     中等 0.601 https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal 15415 25639
890 查找和替换模式     中等 0.711 https://leetcode-cn.com/problems/find-and-replace-pattern 28398 39930
891 子序列宽度之和     困难 0.289 https://leetcode-cn.com/problems/sum-of-subsequence-widths
892 三维形体的表面积     简单 0.56 https://leetcode-cn.com/problems/surface-area-of-3d-shapes 11068 19770
893 特殊等价字符串组     简单 0.626 https://leetcode-cn.com/problems/groups-of-special-equivalent-strings 15128 24145
894 所有可能的满二叉树     中等 0.707 https://leetcode-cn.com/problems/all-possible-full-binary-trees 17723 25063
895 最大频率栈     困难 0.56 https://leetcode-cn.com/problems/maximum-frequency-stack 13204 23545
896 单调数列     简单 0.553 https://leetcode-cn.com/problems/monotonic-array 44001 79594
897 递增顺序查找树     简单 0.646 https://leetcode-cn.com/problems/increasing-order-search-tree 31013 47977
898 子数组按位或操作     中等 0.34 https://leetcode-cn.com/problems/bitwise-ors-of-subarrays 7856 23098
899 有序队列     困难 0.472 https://leetcode-cn.com/problems/orderly-queue 4224 8940
900 RLE 迭代器     中等 0.502 https://leetcode-cn.com/problems/rle-iterator 13502 26893
901 股票价格跨度     中等 0.489 https://leetcode-cn.com/problems/online-stock-span 10330 21102
902 最大为 N 的数字组合     困难 0.286 https://leetcode-cn.com/problems/numbers-at-most-n-given-digit-set 4328 15132
903 DI 序列的有效排列     困难 0.442 https://leetcode-cn.com/problems/valid-permutations-for-di-sequence 2885 6531
904 水果成篮     中等 0.415 https://leetcode-cn.com/problems/fruit-into-baskets 53883 129990
905 按奇偶排序数组     简单 0.726 https://leetcode-cn.com/problems/sort-array-by-parity 99018 136395
906 超级回文数     困难 0.304 https://leetcode-cn.com/problems/super-palindromes 3259 10731
907 子数组的最小值之和     中等 0.273 https://leetcode-cn.com/problems/sum-of-subarray-minimums 10729 39301
908 最小差值 I     简单 0.645 https://leetcode-cn.com/problems/smallest-range-i 23656 36671
909 蛇梯棋     中等 0.335 https://leetcode-cn.com/problems/snakes-and-ladders 10453 31228
910 最小差值 II     中等 0.236 https://leetcode-cn.com/problems/smallest-range-ii 5881 24910
911 在线选举     中等 0.469 https://leetcode-cn.com/problems/online-election 12477 26615
912 排序数组     中等 0.637 https://leetcode-cn.com/problems/sort-an-array 9016 14175
913 猫和老鼠     困难 0.289 https://leetcode-cn.com/problems/cat-and-mouse 4187 14498
914 卡牌分组     简单 0.341 https://leetcode-cn.com/problems/x-of-a-kind-in-a-deck-of-cards 18789 55139
915 分割数组     中等 0.434 https://leetcode-cn.com/problems/partition-array-into-disjoint-intervals 10969 25310
916 单词子集     中等 0.453 https://leetcode-cn.com/problems/word-subsets 10771 23790
917 仅仅反转字母     简单 0.559 https://leetcode-cn.com/problems/reverse-only-letters 26956 48180
918 环形子数组的最大和     中等 0.318 https://leetcode-cn.com/problems/maximum-sum-circular-subarray 10394 32692
919 完全二叉树插入器     中等 0.55 https://leetcode-cn.com/problems/complete-binary-tree-inserter 8739 15878
920 播放列表的数量     困难 0.438 https://leetcode-cn.com/problems/number-of-music-playlists 5288 12057
921 使括号有效的最少添加     中等 0.701 https://leetcode-cn.com/problems/minimum-add-to-make-parentheses-valid 25352 36149
922 按奇偶排序数组 II     简单 0.671 https://leetcode-cn.com/problems/sort-array-by-parity-ii 43650 65099
923 三数之和的多种可能     中等 0.336 https://leetcode-cn.com/problems/3sum-with-multiplicity 10580 31432
924 尽量减少恶意软件的传播     困难 0.4 https://leetcode-cn.com/problems/minimize-malware-spread 11921 29839
925 长按键入     简单 0.444 https://leetcode-cn.com/problems/long-pressed-name 16774 37806
926 将字符串翻转到单调递增     中等 0.495 https://leetcode-cn.com/problems/flip-string-to-monotone-increasing 11837 23901
927 三等分     困难 0.304 https://leetcode-cn.com/problems/three-equal-parts 3896 12834
928 尽量减少恶意软件的传播 II     困难 0.392 https://leetcode-cn.com/problems/minimize-malware-spread-ii 4612 11764
929 独特的电子邮件地址     简单 0.71 https://leetcode-cn.com/problems/unique-email-addresses 118784 167288
930 和相同的二元子数组     中等 0.38 https://leetcode-cn.com/problems/binary-subarrays-with-sum 9674 25439
931 下降路径最小和     中等 0.589 https://leetcode-cn.com/problems/minimum-falling-path-sum 17870 30354
932 漂亮数组     中等 0.53 https://leetcode-cn.com/problems/beautiful-array 5253 9907
933 最近的请求次数     简单 0.696 https://leetcode-cn.com/problems/number-of-recent-calls 22507 32361
934 最短的桥     中等 0.439 https://leetcode-cn.com/problems/shortest-bridge 10003 22797
935 骑士拨号器     中等 0.407 https://leetcode-cn.com/problems/knight-dialer 11623 28505
936 戳印序列     困难 0.359 https://leetcode-cn.com/problems/stamping-the-sequence 3131 8725
937 重新排列日志文件     简单 0.572 https://leetcode-cn.com/problems/reorder-log-files 21715 37990
938 二叉搜索树的范围和     简单 0.792 https://leetcode-cn.com/problems/range-sum-of-bst 56090 70896
939 最小面积矩形     中等 0.505 https://leetcode-cn.com/problems/minimum-area-rectangle 17794 35240
940 不同的子序列 II     困难 0.398 https://leetcode-cn.com/problems/distinct-subsequences-ii 5691 14321
941 有效的山脉数组     简单 0.353 https://leetcode-cn.com/problems/valid-mountain-array 19790 56012
942 增减字符串匹配     简单 0.701 https://leetcode-cn.com/problems/di-string-match 31284 44656
943 最短超级串     困难 0.38 https://leetcode-cn.com/problems/find-the-shortest-superstring 4361 11466
944 删列造序     简单 0.693 https://leetcode-cn.com/problems/delete-columns-to-make-sorted 21998 31735
945 使数组唯一的最小增量     中等 0.429 https://leetcode-cn.com/problems/minimum-increment-to-make-array-unique 10693 24913
946 验证栈序列     中等 0.577 https://leetcode-cn.com/problems/validate-stack-sequences 13910 24127
947 移除最多的同行或同列石头     中等 0.542 https://leetcode-cn.com/problems/most-stones-removed-with-same-row-or-column 21452 39561
948 令牌放置     中等 0.393 https://leetcode-cn.com/problems/bag-of-tokens 6267 15942
949 给定数字能组成的最大时间     简单 0.34 https://leetcode-cn.com/problems/largest-time-for-given-digits 8685 25542
950 按递增顺序显示卡牌     中等 0.719 https://leetcode-cn.com/problems/reveal-cards-in-increasing-order 14969 20814
951 翻转等价二叉树     中等 0.653 https://leetcode-cn.com/problems/flip-equivalent-binary-trees 15893 24335
952 按公因数计算最大组件大小     困难 0.262 https://leetcode-cn.com/problems/largest-component-size-by-common-factor 4550 17342
953 验证外星语词典     简单 0.556 https://leetcode-cn.com/problems/verifying-an-alien-dictionary 20069 36084
954 二倍数对数组     中等 0.343 https://leetcode-cn.com/problems/array-of-doubled-pairs 8932 26013
955 删列造序 II     中等 0.313 https://leetcode-cn.com/problems/delete-columns-to-make-sorted-ii 5307 16932
956 最高的广告牌     困难 0.381 https://leetcode-cn.com/problems/tallest-billboard 3935 10346
957 N 天后的牢房     中等 0.38 https://leetcode-cn.com/problems/prison-cells-after-n-days 12034 31666
958 二叉树的完全性检验     中等 0.47 https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree 14380 30530
959 由斜杠划分区域     中等 0.625 https://leetcode-cn.com/problems/regions-cut-by-slashes 6446 10314
960 删列造序 III     困难 0.527 https://leetcode-cn.com/problems/delete-columns-to-make-sorted-iii 3559 6759
961 重复 N 次的元素     简单 0.725 https://leetcode-cn.com/problems/n-repeated-element-in-size-2n-array 56168 77495
962 最大宽度坡     中等 0.416 https://leetcode-cn.com/problems/maximum-width-ramp 8977 21595
963 最小面积矩形 II     中等 0.443 https://leetcode-cn.com/problems/minimum-area-rectangle-ii 4480 10113
964 表示数字的最少运算符     困难 0.404 https://leetcode-cn.com/problems/least-operators-to-express-number 2248 5559
965 单值二叉树     简单 0.669 https://leetcode-cn.com/problems/univalued-binary-tree 34031 50855
966 元音拼写检查器     中等 0.417 https://leetcode-cn.com/problems/vowel-spellchecker 5020 12043
967 连续差相同的数字     中等 0.369 https://leetcode-cn.com/problems/numbers-with-same-consecutive-differences 7169 19415
968 监控二叉树     困难 0.352 https://leetcode-cn.com/problems/binary-tree-cameras 6885 19573
969 煎饼排序     中等 0.625 https://leetcode-cn.com/problems/pancake-sorting 10308 16500
970 强整数     简单 0.395 https://leetcode-cn.com/problems/powerful-integers 10948 27749
971 翻转二叉树以匹配先序遍历     中等 0.428 https://leetcode-cn.com/problems/flip-binary-tree-to-match-preorder-traversal 6009 14044
972 相等的有理数     困难 0.402 https://leetcode-cn.com/problems/equal-rational-numbers 2491 6195
973 最接近原点的 K 个点     中等 0.623 https://leetcode-cn.com/problems/k-closest-points-to-origin 63545 101958
974 和可被 K 整除的子数组     中等 0.448 https://leetcode-cn.com/problems/subarray-sums-divisible-by-k 11418 25503
975 奇偶跳     困难 0.48 https://leetcode-cn.com/problems/odd-even-jump 10809 22532
976 三角形的最大周长     简单 0.573 https://leetcode-cn.com/problems/largest-perimeter-triangle 15718 27428
977 有序数组的平方     简单 0.721 https://leetcode-cn.com/problems/squares-of-a-sorted-array 70827 98329
978 最长湍流子数组     中等 0.455 https://leetcode-cn.com/problems/longest-turbulent-subarray 10044 22079
979 在二叉树中分配硬币     中等 0.67 https://leetcode-cn.com/problems/distribute-coins-in-binary-tree 12970 19368
980 不同路径 III     困难 0.711 https://leetcode-cn.com/problems/unique-paths-iii 9021 12690
981 基于时间的键值存储     中等 0.505 https://leetcode-cn.com/problems/time-based-key-value-store 12606 24926
982 按位与为零的三元组     困难 0.538 https://leetcode-cn.com/problems/triples-with-bitwise-and-equal-to-zero 4547 8444
983 最低票价     中等 0.573 https://leetcode-cn.com/problems/minimum-cost-for-tickets 13755 24013
984 不含 AAA 或 BBB 的字符串     中等 0.336 https://leetcode-cn.com/problems/string-without-aaa-or-bbb 9533 28343
985 查询后的偶数和     简单 0.637 https://leetcode-cn.com/problems/sum-of-even-numbers-after-queries 20475 32147
986 区间列表的交集     中等 0.63 https://leetcode-cn.com/problems/interval-list-intersections 16531 26250
987 二叉树的垂序遍历     中等 0.319 https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree 9630 30171
988 从叶结点开始的最小字符串     中等 0.463 https://leetcode-cn.com/problems/smallest-string-starting-from-leaf 10618 22951
989 数组形式的整数加法     简单 0.448 https://leetcode-cn.com/problems/add-to-array-form-of-integer 15566 34751
990 等式方程的可满足性     中等 0.398 https://leetcode-cn.com/problems/satisfiability-of-equality-equations 7325 18399
991 坏了的计算器     中等 0.402 https://leetcode-cn.com/problems/broken-calculator 6340 15771
992 K 个不同整数的子数组     困难 0.446 https://leetcode-cn.com/problems/subarrays-with-k-different-integers 6044 13540
993 二叉树的堂兄弟节点     简单 0.525 https://leetcode-cn.com/problems/cousins-in-binary-tree 16795 31986
994 腐烂的橘子     简单 0.462 https://leetcode-cn.com/problems/rotting-oranges 11664 25212
995 K 连续位的最小翻转次数     困难 0.487 https://leetcode-cn.com/problems/minimum-number-of-k-consecutive-bit-flips 4786 9825
996 正方形数组的数目     困难 0.477 https://leetcode-cn.com/problems/number-of-squareful-arrays 5456 11430
997 找到小镇的法官     简单 0.491 https://leetcode-cn.com/problems/find-the-town-judge 16546 33685
998 最大二叉树 II     中等 0.618 https://leetcode-cn.com/problems/maximum-binary-tree-ii 7534 12189
999 车的可用捕获量     简单 0.661 https://leetcode-cn.com/problems/available-captures-for-rook 12828 19412
1000 合并石头的最低成本     困难 0.314 https://leetcode-cn.com/problems/minimum-cost-to-merge-stones 3432 10940
1001 网格照明     困难 0.343 https://leetcode-cn.com/problems/grid-illumination 4401 12833
1002 查找常用字符     简单 0.659 https://leetcode-cn.com/problems/find-common-characters 23106 35086
1003 检查替换后的词是否有效     中等 0.518 https://leetcode-cn.com/problems/check-if-word-is-valid-after-substitutions 8872 17119
1004 最大连续1的个数 III     中等 0.531 https://leetcode-cn.com/problems/max-consecutive-ones-iii 10983 20657
1005 K 次取反后最大化的数组和     简单 0.496 https://leetcode-cn.com/problems/maximize-sum-of-array-after-k-negations 11241 22680
1006 笨阶乘     中等 0.537 https://leetcode-cn.com/problems/clumsy-factorial 7062 13152
1007 行相等的最少多米诺旋转     中等 0.477 https://leetcode-cn.com/problems/minimum-domino-rotations-for-equal-row 8199 17170
1008 先序遍历构造二叉树     中等 0.729 https://leetcode-cn.com/problems/construct-binary-search-tree-from-preorder-traversal 13577 18616
1009 十进制整数的反码     简单 0.589 https://leetcode-cn.com/problems/complement-of-base-10-integer 11039 18740
1010 总持续时间可被 60 整除的歌曲     简单 0.455 https://leetcode-cn.com/problems/pairs-of-songs-with-total-durations-divisible-by-60 11234 24684
1011 在 D 天内送达包裹的能力     中等 0.53 https://leetcode-cn.com/problems/capacity-to-ship-packages-within-d-days 9229 17393
1012 至少有 1 位重复的数字     困难 0.344 https://leetcode-cn.com/problems/numbers-with-repeated-digits 2546 7401
1013 将数组分成和相等的三个部分     简单 0.551 https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum 12887 23391
1014 最佳观光组合     中等 0.487 https://leetcode-cn.com/problems/best-sightseeing-pair 7150 14666
1015 可被 K 整除的最小整数     中等 0.281 https://leetcode-cn.com/problems/smallest-integer-divisible-by-k 5399 19243
1016 子串能表示从 1 到 N 数字的二进制串     中等 0.616 https://leetcode-cn.com/problems/binary-string-with-substrings-representing-1-to-n 6475 10518
1017 负二进制转换     中等 0.565 https://leetcode-cn.com/problems/convert-to-base-2 5602 9904
1018 可被 5 整除的二进制前缀     简单 0.464 https://leetcode-cn.com/problems/binary-prefix-divisible-by-5 9920 21407
1019 链表中的下一个更大节点     中等 0.563 https://leetcode-cn.com/problems/next-greater-node-in-linked-list 11323 20088
1020 飞地的数量     中等 0.549 https://leetcode-cn.com/problems/number-of-enclaves 6999 12734
1021 删除最外层的括号     简单 0.762 https://leetcode-cn.com/problems/remove-outermost-parentheses 23381 30688
1022 从根到叶的二进制数之和     简单 0.54 https://leetcode-cn.com/problems/sum-of-root-to-leaf-binary-numbers 11175 20623
1023 驼峰式匹配     中等 0.566 https://leetcode-cn.com/problems/camelcase-matching 7206 12736
1024 视频拼接     中等 0.471 https://leetcode-cn.com/problems/video-stitching 7469 15850
1025 除数博弈     简单 0.63 https://leetcode-cn.com/problems/divisor-game 11522 18281
1026 节点与其祖先之间的最大差值     中等 0.592 https://leetcode-cn.com/problems/maximum-difference-between-node-and-ancestor 8391 14158
1027 最长等差数列     中等 0.469 https://leetcode-cn.com/problems/longest-arithmetic-sequence 7534 16025
1028 从先序遍历还原二叉树     困难 0.709 https://leetcode-cn.com/problems/recover-a-tree-from-preorder-traversal 6157 8691
1029 两地调度     简单 0.537 https://leetcode-cn.com/problems/two-city-scheduling 8732 16245
1030 距离顺序排列矩阵单元格     简单 0.657 https://leetcode-cn.com/problems/matrix-cells-in-distance-order 9029 13773
1031 两个非重叠子数组的最大和     中等 0.555 https://leetcode-cn.com/problems/maximum-sum-of-two-non-overlapping-subarrays 5611 10108
1032 字符流     困难 0.41 https://leetcode-cn.com/problems/stream-of-characters 4787 11686
1033 移动石子直到连续     简单 0.347 https://leetcode-cn.com/problems/moving-stones-until-consecutive 5595 16082
1034 边框着色     中等 0.424 https://leetcode-cn.com/problems/coloring-a-border 4386 10330
1035 不相交的线     中等 0.515 https://leetcode-cn.com/problems/uncrossed-lines 5085 9889
1036 逃离大迷宫     困难 0.372 https://leetcode-cn.com/problems/escape-a-large-maze 3281 8878
1037 有效的回旋镖     简单 0.375 https://leetcode-cn.com/problems/valid-boomerang 7085 18881
1038 从二叉搜索树到更大和树     中等 0.801 https://leetcode-cn.com/problems/binary-search-tree-to-greater-sum-tree 9348 11664
1039 多边形三角剖分的最低得分     中等 0.407 https://leetcode-cn.com/problems/minimum-score-triangulation-of-polygon 3096 7596
1040 移动石子直到连续 II     中等 0.458 https://leetcode-cn.com/problems/moving-stones-until-consecutive-ii 1565 3424
1041 困于环中的机器人     简单 0.427 https://leetcode-cn.com/problems/robot-bounded-in-circle 5571 13035
1042 不邻接植花     简单 0.478 https://leetcode-cn.com/problems/flower-planting-with-no-adjacent 4916 10280
1043 分隔数组以得到最大和     中等 0.615 https://leetcode-cn.com/problems/partition-array-for-maximum-sum 4461 7248
1044 最长重复子串     困难 0.229 https://leetcode-cn.com/problems/longest-duplicate-substring 1792 7801
1045 买下所有产品的客户     中等 0.637 https://leetcode-cn.com/problems/customers-who-bought-all-products Lock
1046 最后一块石头的重量     简单 0.63 https://leetcode-cn.com/problems/last-stone-weight 9275 14715
1047 删除字符串中的所有相邻重复项     简单 0.629 https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string 10561 16770
1048 最长字符串链     中等 0.468 https://leetcode-cn.com/problems/longest-string-chain 5889 12564
1049 最后一块石头的重量 II     中等 0.389 https://leetcode-cn.com/problems/last-stone-weight-ii 3734 9586
1050 合作过至少三次的演员和导演     简单 0.772 https://leetcode-cn.com/problems/actors-and-directors-who-cooperated-at-least-three-times Lock
1051 高度检查器     简单 0.703 https://leetcode-cn.com/problems/height-checker 8910 12674
1052 爱生气的书店老板     中等 0.519 https://leetcode-cn.com/problems/grumpy-bookstore-owner
1053 交换一次的先前排列     中等 0.471 https://leetcode-cn.com/problems/previous-permutation-with-one-swap 4055 8602
1054 距离相等的条形码     中等 0.381 https://leetcode-cn.com/problems/distant-barcodes 4523 11861
1055 形成字符串的最短路径     中等 0.575 https://leetcode-cn.com/problems/shortest-way-to-form-string Lock
1056 易混淆数     简单 0.485 https://leetcode-cn.com/problems/confusing-number Lock
1057 校园自行车分配     中等 0.583 https://leetcode-cn.com/problems/campus-bikes Lock
1058 最小化舍入误差以满足目标     中等 0.389 https://leetcode-cn.com/problems/minimize-rounding-error-to-meet-target Lock
1059 从始点到终点的所有路径     中等 0.45 https://leetcode-cn.com/problems/all-paths-from-source-lead-to-destination Lock
1060 有序数组中的缺失元素     中等 0.536 https://leetcode-cn.com/problems/missing-element-in-sorted-array Lock
1061 按字典序排列最小的等效字符串     中等 0.62 https://leetcode-cn.com/problems/lexicographically-smallest-equivalent-string Lock
1062 最长重复子串     中等 0.495 https://leetcode-cn.com/problems/longest-repeating-substring Lock
1063 有效子数组的数目     困难 0.772 https://leetcode-cn.com/problems/number-of-valid-subarrays Lock
1064 不动点     简单 0.827 https://leetcode-cn.com/problems/fixed-point Lock
1065 字符串的索引对     简单 0.585 https://leetcode-cn.com/problems/index-pairs-of-a-string Lock
1066 校园自行车分配 II     中等 0.39 https://leetcode-cn.com/problems/campus-bikes-ii Lock
1067 范围内的数字计数     困难 0.32 https://leetcode-cn.com/problems/digit-count-in-range Lock
1068 Product Sales Analysis I     简单 0.814 https://leetcode-cn.com/problems/product-sales-analysis-i Lock
1069 Product Sales Analysis II     简单 0.799 https://leetcode-cn.com/problems/product-sales-analysis-ii Lock
1070 Product Sales Analysis III     中等 0.393 https://leetcode-cn.com/problems/product-sales-analysis-iii Lock
1071 字符串的最大公因子     简单 0.523 https://leetcode-cn.com/problems/greatest-common-divisor-of-strings 5001 9531
1072 按列翻转得到最大值等行数     中等 0.549 https://leetcode-cn.com/problems/flip-columns-for-maximum-number-of-equal-rows 3274 5971
1073 负二进制数相加     中等 0.308 https://leetcode-cn.com/problems/adding-two-negabinary-numbers 2516 8122
1074 元素和为目标值的子矩阵数量     困难 0.599 https://leetcode-cn.com/problems/number-of-submatrices-that-sum-to-target 1871 3121
1075 Project Employees I 简单 0.607 https://leetcode-cn.com/problems/project-employees-i Lock
1076 Project Employees II 简单 0.518 https://leetcode-cn.com/problems/project-employees-ii Lock
1077 Project Employees III 中等 0.786 https://leetcode-cn.com/problems/project-employees-iii Lock
1078 Bigram 分词     简单 0.623 https://leetcode-cn.com/problems/occurrences-after-bigram 12041 18335
1079 活字印刷     中等 0.684 https://leetcode-cn.com/problems/letter-tile-possibilities 8899 11746
1080 根到叶路径上的不足节点     中等 0.374 https://leetcode-cn.com/problems/insufficient-nodes-in-root-to-leaf-paths 5987 13969
1081 不同字符的最小子序列     中等 0.368 https://leetcode-cn.com/problems/smallest-subsequence-of-distinct-characters 4035 9349
1082 Sales Analysis I     简单 0.74 https://leetcode-cn.com/problems/sales-analysis-i Lock
1083 Sales Analysis II     简单 0.436 https://leetcode-cn.com/problems/sales-analysis-ii Lock
1084 Sales Analysis III     简单 0.378 https://leetcode-cn.com/problems/sales-analysis-iii Lock
1085 最小元素各数位之和     简单 0.719 https://leetcode-cn.com/problems/sum-of-digits-in-the-minimum-number Lock
1086 前五科的均分     简单 0.646 https://leetcode-cn.com/problems/high-five Lock
1087 字母切换     中等 0.359 https://leetcode-cn.com/problems/brace-expansion Lock
1088 易混淆数 II     困难 0.206 https://leetcode-cn.com/problems/confusing-number-ii Lock
1089 复写零     简单 0.536 https://leetcode-cn.com/problems/duplicate-zeros 13700 23157
1090 受标签影响的最大值     中等 0.416 https://leetcode-cn.com/problems/largest-values-from-labels 5313 9264
1091 二进制矩阵中的最短路径     中等 0.237 https://leetcode-cn.com/problems/shortest-path-in-binary-matrix 6198 17037
1092 最短公共超序列     困难 0.337 https://leetcode-cn.com/problems/shortest-common-supersequence
1093 大样本统计     中等 0.337 https://leetcode-cn.com/problems/statistics-from-a-large-sample 4368 10109
1094 拼车     中等 0.487 https://leetcode-cn.com/problems/car-pooling 7778 13539
1095 山脉数组中查找目标值     困难 0.253 https://leetcode-cn.com/problems/find-in-mountain-array 3845 11263
1096 花括号展开 II     困难 0.408 https://leetcode-cn.com/problems/brace-expansion-ii 2151 3910
1097 Game Play Analysis V     困难 0.272 https://leetcode-cn.com/problems/game-play-analysis-v Lock
1098 Unpopular Books     中等 0.388 https://leetcode-cn.com/problems/unpopular-books Lock
1099 小于 K 的两数之和     简单 0.461 https://leetcode-cn.com/problems/two-sum-less-than-k Lock
1100 长度为 K 的无重复字符子串     中等 0.581 https://leetcode-cn.com/problems/find-k-length-substrings-with-no-repeated-characters Lock
1101 彼此熟识的最早时间     中等 0.561 https://leetcode-cn.com/problems/the-earliest-moment-when-everyone-become-friends Lock
1102 得分最高的路径     中等 0.181 https://leetcode-cn.com/problems/path-with-maximum-minimum-value Lock
1103 分糖果 II     简单 0.597 https://leetcode-cn.com/problems/distribute-candies-to-people 8722 14233
1104 二叉树寻路     中等 0.607 https://leetcode-cn.com/problems/path-in-zigzag-labelled-binary-tree 6027 8519
1105 填充书架     中等 0.487 https://leetcode-cn.com/problems/filling-bookcase-shelves 4312 7888
1106 解析布尔表达式     困难 0.516 https://leetcode-cn.com/problems/parsing-a-boolean-expression 4336 7418
1108 IP 地址无效化     简单 0.801 https://leetcode-cn.com/problems/defanging-an-ip-address 29140 34021
1109 航班预订统计     中等 0.27 https://leetcode-cn.com/problems/corporate-flight-bookings 6608 13796
1110 删点成林     中等 0.511 https://leetcode-cn.com/problems/delete-nodes-and-return-forest 7766 12424
1111 有效括号的嵌套深度     中等 0.633 https://leetcode-cn.com/problems/maximum-nesting-depth-of-two-valid-parentheses-strings 3444 5298
1114 按序打印     简单 0.559 https://leetcode-cn.com/problems/print-in-order 7353 12577
1115 交替打印FooBar     中等 0.575 https://leetcode-cn.com/problems/print-foobar-alternately 3969 6731
1116 打印零与奇偶数     中等 0.462 https://leetcode-cn.com/problems/print-zero-even-odd 2339 4249
1117 H2O 生成     困难 0.327 https://leetcode-cn.com/problems/building-h2o 2144 4189
1118 一月有多少天     简单 0.636 https://leetcode-cn.com/problems/number-of-days-in-a-month Lock
1119 删去字符串中的元音     简单 0.884 https://leetcode-cn.com/problems/remove-vowels-from-a-string Lock
1120 子树的最大平均值     中等 0.544 https://leetcode-cn.com/problems/maximum-average-subtree Lock
1121 将数组分成几个递增序列     困难 0.473 https://leetcode-cn.com/problems/divide-array-into-increasing-sequences Lock
1122 数组的相对排序     简单 0.615 https://leetcode-cn.com/problems/relative-sort-array 11474 17091
1123 最深叶节点的最近公共祖先     中等 0.559 https://leetcode-cn.com/problems/lowest-common-ancestor-of-deepest-leaves 5406 8426
1124 表现良好的最长时间段     中等 0.144 https://leetcode-cn.com/problems/longest-well-performing-interval 4678 15732
1125 最小的必要团队     困难 0.325 https://leetcode-cn.com/problems/smallest-sufficient-team 3066 6879
1128 等价多米诺骨牌对的数量     简单 0.324 https://leetcode-cn.com/problems/number-of-equivalent-domino-pairs 7492 17191
1129 颜色交替的最短路径     中等 0.265 https://leetcode-cn.com/problems/shortest-path-with-alternating-colors 3721 10358
1130 叶值的最小代价生成树     中等 0.489 https://leetcode-cn.com/problems/minimum-cost-tree-from-leaf-values 3480 5924
1131 绝对值表达式的最大值     中等 0.285 https://leetcode-cn.com/problems/maximum-of-absolute-value-expression 2589 5145
1133 最大唯一数     简单 0.547 https://leetcode-cn.com/problems/largest-unique-number Lock
1134 阿姆斯特朗数     简单 0.754 https://leetcode-cn.com/problems/armstrong-number Lock
1135 最低成本联通所有城市     中等 0.236 https://leetcode-cn.com/problems/connecting-cities-with-minimum-cost Lock
1136 平行课程     困难 0.459 https://leetcode-cn.com/problems/parallel-courses Lock
1137 第 N 个泰波那契数    新 简单 0.571 https://leetcode-cn.com/problems/n-th-tribonacci-number 7298 11746
1138 字母板上的路径    新 中等 0.286 https://leetcode-cn.com/problems/alphabet-board-path 4881 11596
1139 最大的以 1 为边界的正方形    新 中等 0.329 https://leetcode-cn.com/problems/largest-1-bordered-square 3403 8072
1140 石子游戏 II    新 中等 0.45 https://leetcode-cn.com/problems/stone-game-ii 2631 4327
1144 递减元素使数组呈锯齿状     中等 0.34 https://leetcode-cn.com/problems/decrease-elements-to-make-array-zigzag 1260 3713
1145 二叉树着色游戏     中等 0.309 https://leetcode-cn.com/problems/binary-tree-coloring-game 749 2424
1146 快照数组     中等 0.238 https://leetcode-cn.com/problems/snapshot-array 692 2903
1147 段式回文     困难 0.491 https://leetcode-cn.com/problems/longest-chunked-palindrome-decomposition 594 1211
1150 检查一个数是否在数组中占绝大多数     简单 0.659 https://leetcode-cn.com/problems/check-if-a-number-is-majority-element-in-a-sorted-array Lock 572 868
1151 最少交换次数来组合所有的 1     中等 0.335 https://leetcode-cn.com/problems/minimum-swaps-to-group-all-1s-together Lock 387 1155
1152 用户网站访问行为分析     中等 0.267 https://leetcode-cn.com/problems/analyze-user-website-visit-pattern Lock 194 727
1153 字符串转化     困难 0.214 https://leetcode-cn.com/problems/string-transforms-into-another-string Lock 205 957
1154 一年中的第几天     简单 0.486 https://leetcode-cn.com/problems/ordinal-number-of-date 2108 4339
1155 掷骰子的N种方法     中等 0.413 https://leetcode-cn.com/problems/number-of-dice-rolls-with-target-sum 1205 2915
1156 单字符重复子串的最大长度     中等 0.413 https://leetcode-cn.com/problems/swap-for-maximum-repeated-substring
1157 子数组中占绝大多数的元素     困难 0.224 https://leetcode-cn.com/problems/online-majority-element-in-subarray 534 2383
1160 拼写单词     简单 0.615 https://leetcode-cn.com/problems/find-words-that-can-be-formed-by-characters
1161 最大层内元素和     中等 0.625 https://leetcode-cn.com/problems/maximum-level-sum-of-a-binary-tree 1188 1900
1162 地图分析     中等 0.294 https://leetcode-cn.com/problems/as-far-from-land-as-possible 937 3173
1163 按字典序排在最后的子串     困难 0.222 https://leetcode-cn.com/problems/last-substring-in-lexicographical-order 652 2935
1165 单行键盘     简单 0.85 https://leetcode-cn.com/problems/single-row-keyboard Lock 447 526
1166 设计文件系统     中等 0.497 https://leetcode-cn.com/problems/design-file-system Lock 296 595
1167 连接棒材的最低费用     中等 0.299 https://leetcode-cn.com/problems/minimum-cost-to-connect-sticks Lock 324 1084
1168 水资源分配优化     困难 0.337 https://leetcode-cn.com/problems/optimize-water-distribution-in-a-village Lock 151 449
1169 查询无效交易     简单 0.197 https://leetcode-cn.com/problems/invalid-transactions 567 2878
1170 比较字符串最小字母出现频次     简单 0.555 https://leetcode-cn.com/problems/compare-strings-by-frequency-of-the-smallest-character 727 1309
1171 从链表中删去总和值为零的连续节点     中等 0.328 https://leetcode-cn.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list 412 1253
1172 餐盘栈     困难 0.209 https://leetcode-cn.com/problems/dinner-plate-stacks 204 954
1173 Immediate Food Delivery I     简单 0.645 https://leetcode-cn.com/problems/immediate-food-delivery-i Lock
1174 Immediate Food Delivery II     中等 0.235 https://leetcode-cn.com/problems/immediate-food-delivery-ii Lock
1175 质数排列     简单 0.445 https://leetcode-cn.com/problems/prime-arrangements
1176 健身计划评估     简单 0.378 https://leetcode-cn.com/problems/diet-plan-performance Lock
1177 构建回文串检测     中等 0.189 https://leetcode-cn.com/problems/can-make-palindrome-from-substring
1178 猜字谜     困难 0.229 https://leetcode-cn.com/problems/number-of-valid-words-for-each-puzzle
1179 重新格式化部门表     简单 0.616 https://leetcode-cn.com/problems/reformat-department-table
1180 统计只含单一字母的子串     简单 0.706 https://leetcode-cn.com/problems/count-substrings-with-only-one-distinct-letter Lock
1181 前后拼接     中等 0.327 https://leetcode-cn.com/problems/before-and-after-puzzle Lock
1182 与目标颜色间的最短距离     中等 0.239 https://leetcode-cn.com/problems/shortest-distance-to-target-color Lock
1183 矩阵中 1 的最大数量     困难 0.349 https://leetcode-cn.com/problems/maximum-number-of-ones Lock
1184 公交站间的距离     简单 0.542 https://leetcode-cn.com/problems/distance-between-bus-stops
1185 一周中的第几天     简单 0.568 https://leetcode-cn.com/problems/day-of-the-week
1186 删除一次得到子数组最大和     中等 0.234 https://leetcode-cn.com/problems/maximum-subarray-sum-with-one-deletion
1187 使数组严格递增     困难 0.331 https://leetcode-cn.com/problems/make-array-strictly-increasing
1188 Design Bounded Blocking Queue     中等 1 https://leetcode-cn.com/problems/design-bounded-blocking-queue Lock
1189 “气球” 的最大数量     简单 0.613 https://leetcode-cn.com/problems/maximum-number-of-balloons
1190 反转每对括号间的子串     中等 0.451 https://leetcode-cn.com/problems/reverse-substrings-between-each-pair-of-parentheses
1191 K 次串联后最大子数组之和     中等 0.219 https://leetcode-cn.com/problems/k-concatenation-maximum-sum
1192 查找集群内的「关键连接」     困难 0.28 https://leetcode-cn.com/problems/critical-connections-in-a-network
1193 每月交易 I     中等 0.597 https://leetcode-cn.com/problems/monthly-transactions-i Lock
1194 锦标赛优胜者     困难 0.358 https://leetcode-cn.com/problems/tournament-winners Lock
1195 交替打印字符串     中等 0.592 https://leetcode-cn.com/problems/fizz-buzz-multithreaded
1196 最多可以买到的苹果数量     简单 0.67 https://leetcode-cn.com/problems/how-many-apples-can-you-put-into-the-basket Lock
1197 进击的骑士     中等 0.23 https://leetcode-cn.com/problems/minimum-knight-moves Lock
1198 找出所有行中最小公共元素     中等 0.673 https://leetcode-cn.com/problems/find-smallest-common-element-in-all-rows Lock
1199 建造街区的最短时间     困难 0.278 https://leetcode-cn.com/problems/minimum-time-to-build-blocks Lock
1200 最小绝对差     简单 0.598 https://leetcode-cn.com/problems/minimum-absolute-difference
1201 丑数 III     中等 0.148 https://leetcode-cn.com/problems/ugly-number-iii
1202 交换字符串中的元素     中等 0.25 https://leetcode-cn.com/problems/smallest-string-with-swaps
1203 项目管理     困难 0.386 https://leetcode-cn.com/problems/sort-items-by-groups-respecting-dependencies
1204 Last Person to Fit in the Elevator     中等 0.545 https://leetcode-cn.com/problems/last-person-to-fit-in-the-elevator Lock
1205 每月交易II     中等 0.36 https://leetcode-cn.com/problems/monthly-transactions-ii Lock
1206 设计跳表     困难 0.58 https://leetcode-cn.com/problems/design-skiplist
1207 独一无二的出现次数     简单 0.661 https://leetcode-cn.com/problems/unique-number-of-occurrences
1208 尽可能使字符串相等     中等 0.26 https://leetcode-cn.com/problems/get-equal-substrings-within-budget
1209 删除字符串中的所有相邻重复项 II     中等 0.503 https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string-ii
1210 穿过迷宫的最少移动次数     困难 0.432 https://leetcode-cn.com/problems/minimum-moves-to-reach-target-with-rotations
1211 Queries Quality and Percentage     简单 0.857 https://leetcode-cn.com/problems/queries-quality-and-percentage Lock
1212 Team Scores in Football Tournament     中等 0.733 https://leetcode-cn.com/problems/team-scores-in-football-tournament Lock
1213 三个有序数组的交集     简单 0.735 https://leetcode-cn.com/problems/intersection-of-three-sorted-arrays Lock
1214 查找两棵二叉搜索树之和     中等 0.595 https://leetcode-cn.com/problems/two-sum-bsts Lock
1215 步进数     中等 0.306 https://leetcode-cn.com/problems/stepping-numbers Lock
1216 验证回文字符串 III     困难 0.422 https://leetcode-cn.com/problems/valid-palindrome-iii Lock
1217 玩筹码     简单 0.633 https://leetcode-cn.com/problems/play-with-chips
1218 最长定差子序列     中等 0.301 https://leetcode-cn.com/problems/longest-arithmetic-subsequence-of-given-difference
1219 黄金矿工     中等 0.598 https://leetcode-cn.com/problems/path-with-maximum-gold
1220 统计元音字母序列的数目     困难 0.532 https://leetcode-cn.com/problems/count-vowels-permutation
LCP 1 猜数字     简单 0.836 https://leetcode-cn.com/problems/guess-numbers
LCP 2 分式化简     简单 0.491 https://leetcode-cn.com/problems/deep-dark-fraction
LCP 3 机器人大冒险     中等 0.138 https://leetcode-cn.com/problems/programmable-robot
LCP 4 覆盖     困难 0.213 https://leetcode-cn.com/problems/broken-board-dominoes
LCP 5 发 LeetCoin     困难 0.211 https://leetcode-cn.com/problems/coin-bonus
1221 分割平衡字符串   简单 0.784 https://leetcode-cn.com/problems/split-a-string-in-balanced-strings
1222 可以攻击国王的皇后   中等 0.649 https://leetcode-cn.com/problems/queens-that-can-attack-the-king
1223 掷骰子模拟   中等 0.45 https://leetcode-cn.com/problems/dice-roll-simulation
1224 最大相等频率   困难 0.295 https://leetcode-cn.com/problems/maximum-equal-frequency
1225 报告系统状态的连续日期   困难 0.531 https://leetcode-cn.com/problems/report-contiguous-dates Lock
1226 哲学家进餐   中等 0.586 https://leetcode-cn.com/problems/the-dining-philosophers
1227 飞机座位分配概率   中等 0.638 https://leetcode-cn.com/problems/airplane-seat-assignment-probability
1228 等差数列中缺失的数字   简单 0.547 https://leetcode-cn.com/problems/missing-number-in-arithmetic-progression Lock
1229 安排会议日程   中等 0.353 https://leetcode-cn.com/problems/meeting-scheduler Lock
1230 抛掷硬币   中等 0.424 https://leetcode-cn.com/problems/toss-strange-coins Lock
1231 分享巧克力   困难 0.555 https://leetcode-cn.com/problems/divide-chocolate Lock
1232 缀点成线   简单 0.505 https://leetcode-cn.com/problems/check-if-it-is-a-straight-line
1233 删除子文件夹   中等 0.448 https://leetcode-cn.com/problems/remove-sub-folders-from-the-filesystem
1234 替换子串得到平衡字符串   中等 0.304 https://leetcode-cn.com/problems/replace-the-substring-for-balanced-string
1235 规划兼职工作   困难 0.424 https://leetcode-cn.com/problems/maximum-profit-in-job-scheduling
1236 网络爬虫   中等 0.552 https://leetcode-cn.com/problems/web-crawler Lock
1237 找出给定方程的正整数解   简单 0.688 https://leetcode-cn.com/problems/find-positive-integer-solution-for-a-given-equation
1238 循环码排列   中等 0.614 https://leetcode-cn.com/problems/circular-permutation-in-binary-representation
1239 串联字符串的最大长度   中等 0.397 https://leetcode-cn.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters
1240 铺瓷砖   困难 0.466 https://leetcode-cn.com/problems/tiling-a-rectangle-with-the-fewest-squares
1241 每个帖子的评论数   简单 0.606 https://leetcode-cn.com/problems/number-of-comments-per-post Lock
1242 多线程网页爬虫   中等 0.382 https://leetcode-cn.com/problems/web-crawler-multithreaded Lock
1243 数组变换   简单 0.522 https://leetcode-cn.com/problems/array-transformation Lock
1244 力扣排行榜   中等 0.56 https://leetcode-cn.com/problems/design-a-leaderboard Lock
1245 树的直径   中等 0.444 https://leetcode-cn.com/problems/tree-diameter Lock
1246 删除回文子数组   困难 0.459 https://leetcode-cn.com/problems/palindrome-removal Lock
1247 交换字符使得字符串相同   中等 0.573 https://leetcode-cn.com/problems/minimum-swaps-to-make-strings-equal
1248 统计「优美子数组」   中等 0.543 https://leetcode-cn.com/problems/count-number-of-nice-subarrays
1249 移除无效的括号   中等 0.556 https://leetcode-cn.com/problems/minimum-remove-to-make-valid-parentheses
1250 检查「好数组」   困难 0.514 https://leetcode-cn.com/problems/check-if-it-is-a-good-array
1251 平均售价   简单 0.781 https://leetcode-cn.com/problems/average-selling-price Lock
1252 奇数值单元格的数目   简单 0.757 https://leetcode-cn.com/problems/cells-with-odd-values-in-a-matrix
1253 重构 2 行二进制矩阵   中等 0.377 https://leetcode-cn.com/problems/reconstruct-a-2-row-binary-matrix
1254 统计封闭岛屿的数目   中等 0.577 https://leetcode-cn.com/problems/number-of-closed-islands
1255 得分最高的单词集合   困难 0.642 https://leetcode-cn.com/problems/maximum-score-words-formed-by-letters
1256 加密数字   中等 0.621 https://leetcode-cn.com/problems/encode-number Lock
1257 最小公共区域   中等 0.522 https://leetcode-cn.com/problems/smallest-common-region Lock
1258 近义词句子   中等 0.57 https://leetcode-cn.com/problems/synonymous-sentences Lock
1259 不相交的握手   困难 0.464 https://leetcode-cn.com/problems/handshakes-that-dont-cross Lock
1260 二维网格迁移   简单 0.596 https://leetcode-cn.com/problems/shift-2d-grid
1261 在受污染的二叉树中查找元素   中等 0.712 https://leetcode-cn.com/problems/find-elements-in-a-contaminated-binary-tree
1262 可被三整除的最大和   中等 0.473 https://leetcode-cn.com/problems/greatest-sum-divisible-by-three
1263 推箱子   困难 0.411 https://leetcode-cn.com/problems/minimum-moves-to-move-a-box-to-their-target-location
1264 页面推荐   中等 0.595 https://leetcode-cn.com/problems/page-recommendations Lock
1265 逆序打印不可变链表   中等 0.924 https://leetcode-cn.com/problems/print-immutable-linked-list-in-reverse Lock
1266 访问所有点的最小时间   简单 0.811 https://leetcode-cn.com/problems/minimum-time-visiting-all-points
1267 统计参与通信的服务器   中等 0.596 https://leetcode-cn.com/problems/count-servers-that-communicate
1268 搜索推荐系统   中等 0.546 https://leetcode-cn.com/problems/search-suggestions-system
1269 停在原地的方案数   困难 0.389 https://leetcode-cn.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps
1270 向公司CEO汇报工作的所有人   中等 0.826 https://leetcode-cn.com/problems/all-people-report-to-the-given-manager Lock
1271 十六进制魔术数字   简单 0.479 https://leetcode-cn.com/problems/hexspeak Lock
1272 删除区间   中等 0.481 https://leetcode-cn.com/problems/remove-interval Lock
1273 删除树节点   中等 0.531 https://leetcode-cn.com/problems/delete-tree-nodes Lock
1274 矩形内船只的数目   困难 0.536 https://leetcode-cn.com/problems/number-of-ships-in-a-rectangle Lock
1275 找出井字棋的获胜者   简单 0.525 https://leetcode-cn.com/problems/find-winner-on-a-tic-tac-toe-game
1276 不浪费原料的汉堡制作方案   中等 0.494 https://leetcode-cn.com/problems/number-of-burgers-with-no-waste-of-ingredients
1277 统计全为 1 的正方形子矩阵   中等 0.699 https://leetcode-cn.com/problems/count-square-submatrices-with-all-ones
1278 分割回文串 III   困难 0.576 https://leetcode-cn.com/problems/palindrome-partitioning-iii
1279 红绿灯路口   简单 0.591 https://leetcode-cn.com/problems/traffic-light-controlled-intersection Lock
1280 学生们参加各科测试的次数   简单 0.537 https://leetcode-cn.com/problems/students-and-examinations Lock
1281 整数的各位积和之差   简单 0.825 https://leetcode-cn.com/problems/subtract-the-product-and-sum-of-digits-of-an-integer
1282 用户分组   中等 0.808 https://leetcode-cn.com/problems/group-the-people-given-the-group-size-they-belong-to
1283 使结果不超过阈值的最小除数   中等 0.368 https://leetcode-cn.com/problems/find-the-smallest-divisor-given-a-threshold
1284 转化为全零矩阵的最少反转次数   困难 0.634 https://leetcode-cn.com/problems/minimum-number-of-flips-to-convert-binary-matrix-to-zero-matrix
1285 找到连续区间的开始和结束数字   中等 0.77 https://leetcode-cn.com/problems/find-the-start-and-end-number-of-continuous-ranges Lock
1286 字母组合迭代器   中等 0.59 https://leetcode-cn.com/problems/iterator-for-combination
1287 有序数组中出现次数超过25%的元素   简单 0.614 https://leetcode-cn.com/problems/element-appearing-more-than-25-in-sorted-array
1288 删除被覆盖区间   中等 0.555 https://leetcode-cn.com/problems/remove-covered-intervals
1289 下降路径最小和 II   困难 0.601 https://leetcode-cn.com/problems/minimum-falling-path-sum-ii
1290 二进制链表转整数   简单 0.807 https://leetcode-cn.com/problems/convert-binary-number-in-a-linked-list-to-integer
1291 顺次数   中等 0.487 https://leetcode-cn.com/problems/sequential-digits
1292 元素和小于等于阈值的正方形的最大边长   中等 0.421 https://leetcode-cn.com/problems/maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold
1293 网格中的最短路径   困难 0.362 https://leetcode-cn.com/problems/shortest-path-in-a-grid-with-obstacles-elimination
1294 不同国家的天气类型   简单 0.661 https://leetcode-cn.com/problems/weather-type-in-each-country Lock
1295 统计位数为偶数的数字   简单 0.822 https://leetcode-cn.com/problems/find-numbers-with-even-number-of-digits
1296 划分数组为连续数字的集合   中等 0.42 https://leetcode-cn.com/problems/divide-array-in-sets-of-k-consecutive-numbers
1297 子串的最大出现次数   中等 0.434 https://leetcode-cn.com/problems/maximum-number-of-occurrences-of-a-substring
1298 你能从盒子里获得的最大糖果数   困难 0.579 https://leetcode-cn.com/problems/maximum-candies-you-can-get-from-boxes
1299 将每个元素替换为右侧最大元素   简单 0.77 https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side
1300 转变数组后最接近目标值的数组和   中等 0.473 https://leetcode-cn.com/problems/sum-of-mutated-array-closest-to-target
1301 最大得分的路径数目   困难 0.324 https://leetcode-cn.com/problems/number-of-paths-with-max-score
1302 层数最深叶子节点的和   中等 0.806 https://leetcode-cn.com/problems/deepest-leaves-sum
1303 求团队人数   简单 0.826 https://leetcode-cn.com/problems/find-the-team-size Lock
1304 和为零的N个唯一整数   简单 0.745 https://leetcode-cn.com/problems/find-n-unique-integers-sum-up-to-zero
1305 两棵二叉搜索树中的所有元素   中等 0.739 https://leetcode-cn.com/problems/all-elements-in-two-binary-search-trees
1306 跳跃游戏 III   中等 0.58 https://leetcode-cn.com/problems/jump-game-iii
1307 口算难题   困难 0.33 https://leetcode-cn.com/problems/verbal-arithmetic-puzzle
1308 不同性别每日分数总计   中等 0.737 https://leetcode-cn.com/problems/running-total-for-different-genders Lock
1309 解码字母到整数映射   简单 0.748 https://leetcode-cn.com/problems/decrypt-string-from-alphabet-to-integer-mapping
1310 子数组异或查询   中等 0.636 https://leetcode-cn.com/problems/xor-queries-of-a-subarray
1311 获取你好友已观看的视频   中等 0.361 https://leetcode-cn.com/problems/get-watched-videos-by-your-friends
1312 让字符串成为回文串的最少插入次数   困难 0.572 https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome
1313 解压缩编码列表   简单 0.82 https://leetcode-cn.com/problems/decompress-run-length-encoded-list
1314 矩阵区域和   中等 0.709 https://leetcode-cn.com/problems/matrix-block-sum
1315 祖父节点值为偶数的节点和   中等 0.805 https://leetcode-cn.com/problems/sum-of-nodes-with-even-valued-grandparent
1316 不同的循环子字符串   困难 0.408 https://leetcode-cn.com/problems/distinct-echo-substrings
1317 将整数转换为两个无零整数的和   简单 0.614 https://leetcode-cn.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers
1318 或运算的最小翻转次数   中等 0.614 https://leetcode-cn.com/problems/minimum-flips-to-make-a-or-b-equal-to-c
1319 连通网络的操作次数   中等 0.496 https://leetcode-cn.com/problems/number-of-operations-to-make-network-connected
1320 二指输入的的最小距离   困难 0.564 https://leetcode-cn.com/problems/minimum-distance-to-type-a-word-using-two-fingers
1321 餐馆营业额变化增长   中等 0.557 https://leetcode-cn.com/problems/restaurant-growth Lock
1322 广告效果   简单 0.59 https://leetcode-cn.com/problems/ads-performance Lock
1323 6 和 9 组成的最大数字   简单 0.75 https://leetcode-cn.com/problems/maximum-69-number
1324 竖直打印单词   中等 0.572 https://leetcode-cn.com/problems/print-words-vertically
1325 删除给定值的叶子节点   中等 0.703 https://leetcode-cn.com/problems/delete-leaves-with-a-given-value
1326 灌溉花园的最少水龙头数目   困难 0.45 https://leetcode-cn.com/problems/minimum-number-of-taps-to-open-to-water-a-garden
1327 列出指定时间段内所有的下单产品   简单 0.701 https://leetcode-cn.com/problems/list-the-products-ordered-in-a-period Lock
1328 破坏回文串   中等 0.436 https://leetcode-cn.com/problems/break-a-palindrome
1329 将矩阵按对角线排序   中等 0.763 https://leetcode-cn.com/problems/sort-the-matrix-diagonally
1330 翻转子数组得到最大的数组值   困难 0.362 https://leetcode-cn.com/problems/reverse-subarray-to-maximize-array-value
1331 数组序号转换   简单 0.523 https://leetcode-cn.com/problems/rank-transform-of-an-array
1332 删除回文子序列   简单 0.635 https://leetcode-cn.com/problems/remove-palindromic-subsequences
1333 餐厅过滤器   中等 0.503 https://leetcode-cn.com/problems/filter-restaurants-by-vegan-friendly-price-and-distance
1334 阈值距离内邻居最少的城市   中等 0.45 https://leetcode-cn.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance
1335 工作计划的最低难度   困难 0.57 https://leetcode-cn.com/problems/minimum-difficulty-of-a-job-schedule
1336 每次访问的交易次数   困难 0.415 https://leetcode-cn.com/problems/number-of-transactions-per-visit Lock
1337 方阵中战斗力最弱的 K 行   简单 0.632 https://leetcode-cn.com/problems/the-k-weakest-rows-in-a-matrix
1338 数组大小减半   中等 0.617 https://leetcode-cn.com/problems/reduce-array-size-to-the-half
1339 分裂二叉树的最大乘积   中等 0.376 https://leetcode-cn.com/problems/maximum-product-of-splitted-binary-tree
1340 跳跃游戏 V   困难 0.524 https://leetcode-cn.com/problems/jump-game-v
1341 电影评分   中等 0.465 https://leetcode-cn.com/problems/movie-rating Lock
1342 将数字变成 0 的操作次数   简单 0.829 https://leetcode-cn.com/problems/number-of-steps-to-reduce-a-number-to-zero
1343 大小为 K 且平均值大于等于阈值的子数组数目   中等 0.541 https://leetcode-cn.com/problems/number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold
1344 时钟指针的夹角   中等 0.587 https://leetcode-cn.com/problems/angle-between-hands-of-a-clock
1345 跳跃游戏 IV   困难 0.32 https://leetcode-cn.com/problems/jump-game-iv
1346 检查整数及其两倍数是否存在   简单 0.424 https://leetcode-cn.com/problems/check-if-n-and-its-double-exist
1347 制造字母异位词的最小步骤数   中等 0.705 https://leetcode-cn.com/problems/minimum-number-of-steps-to-make-two-strings-anagram
1348 推文计数   中等 0.263 https://leetcode-cn.com/problems/tweet-counts-per-frequency
1349 参加考试的最大学生数   困难 0.426 https://leetcode-cn.com/problems/maximum-students-taking-exam
1350 院系无效的学生   简单 0.855 https://leetcode-cn.com/problems/students-with-invalid-departments Lock
1351 统计有序矩阵中的负数   简单 0.768 https://leetcode-cn.com/problems/count-negative-numbers-in-a-sorted-matrix
1352 最后 K 个数的乘积   中等 0.418 https://leetcode-cn.com/problems/product-of-the-last-k-numbers
1353 最多可以参加的会议数目   中等 0.28 https://leetcode-cn.com/problems/maximum-number-of-events-that-can-be-attended
1354 多次求和构造目标数组   困难 0.292 https://leetcode-cn.com/problems/construct-target-array-with-multiple-sums
1355 活动参与者   中等 0.628 https://leetcode-cn.com/problems/activity-participants Lock
1356 根据数字二进制下 1 的数目排序   简单 0.666 https://leetcode-cn.com/problems/sort-integers-by-the-number-of-1-bits
1357 每隔 n 个顾客打折   中等 0.473 https://leetcode-cn.com/problems/apply-discount-every-n-orders
1358 包含所有三种字符的子字符串数目   中等 0.421 https://leetcode-cn.com/problems/number-of-substrings-containing-all-three-characters
1359 有效的快递序列数目   困难 0.541 https://leetcode-cn.com/problems/count-all-valid-pickup-and-delivery-options
1360 日期之间隔几天   简单 0.469 https://leetcode-cn.com/problems/number-of-days-between-two-dates
1361 验证二叉树   中等 0.465 https://leetcode-cn.com/problems/validate-binary-tree-nodes
1362 最接近的因数   中等 0.49 https://leetcode-cn.com/problems/closest-divisors
1363 形成三的最大倍数   困难 0.318 https://leetcode-cn.com/problems/largest-multiple-of-three
1364 顾客的可信联系人数量   中等 0.677 https://leetcode-cn.com/problems/number-of-trusted-contacts-of-a-customer Lock
1365 有多少小于当前数字的数字   简单 0.821 https://leetcode-cn.com/problems/how-many-numbers-are-smaller-than-the-current-number
1366 通过投票对团队排名   中等 0.488 https://leetcode-cn.com/problems/rank-teams-by-votes
1367 二叉树中的列表   中等 0.387 https://leetcode-cn.com/problems/linked-list-in-binary-tree
1368 使网格图至少有一条有效路径的最小代价   困难 0.486 https://leetcode-cn.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid
1369 获取最近第二次的活动   困难 0.522 https://leetcode-cn.com/problems/get-the-second-most-recent-activity Lock
1370 上升下降字符串   简单 0.742 https://leetcode-cn.com/problems/increasing-decreasing-string
1371 每个元音包含偶数次的最长子字符串   中等 0.585 https://leetcode-cn.com/problems/find-the-longest-substring-containing-vowels-in-even-counts
1372 二叉树中的最长交错路径   中等 0.47 https://leetcode-cn.com/problems/longest-zigzag-path-in-a-binary-tree
1373 二叉搜索子树的最大键值和   困难 0.419 https://leetcode-cn.com/problems/maximum-sum-bst-in-binary-tree
1374 生成每种字符都是奇数个的字符串   简单 0.717 https://leetcode-cn.com/problems/generate-a-string-with-characters-that-have-odd-counts
1375 灯泡开关 III   中等 0.511 https://leetcode-cn.com/problems/bulb-switcher-iii
1376 通知所有员工所需的时间   中等 0.476 https://leetcode-cn.com/problems/time-needed-to-inform-all-employees
1377 T 秒后青蛙的位置   困难 0.294 https://leetcode-cn.com/problems/frog-position-after-t-seconds
1378 使用唯一标识码替换员工ID   简单 0.861 https://leetcode-cn.com/problems/replace-employee-id-with-the-unique-identifier Lock
1379 找出克隆二叉树中的相同节点   中等 0.817 https://leetcode-cn.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree
1380 矩阵中的幸运数   简单 0.704 https://leetcode-cn.com/problems/lucky-numbers-in-a-matrix
1381 设计一个支持增量操作的栈   中等 0.723 https://leetcode-cn.com/problems/design-a-stack-with-increment-operation
1382 将二叉搜索树变平衡   中等 0.659 https://leetcode-cn.com/problems/balance-a-binary-search-tree
1383 最大的团队表现值   困难 0.285 https://leetcode-cn.com/problems/maximum-performance-of-a-team
1384 按年度列出销售总额   困难 0.521 https://leetcode-cn.com/problems/total-sales-amount-by-year Lock
1385 两个数组间的距离值   简单 0.712 https://leetcode-cn.com/problems/find-the-distance-value-between-two-arrays
1386 安排电影院座位   中等 0.279 https://leetcode-cn.com/problems/cinema-seat-allocation
1387 将整数按权重排序   中等 0.683 https://leetcode-cn.com/problems/sort-integers-by-the-power-value
1388 3n 块披萨   困难 0.43 https://leetcode-cn.com/problems/pizza-with-3n-slices
1389 按既定顺序创建目标数组   简单 0.818 https://leetcode-cn.com/problems/create-target-array-in-the-given-order
1390 四因数   中等 0.327 https://leetcode-cn.com/problems/four-divisors
1391 检查网格中是否存在有效路径   中等 0.391 https://leetcode-cn.com/problems/check-if-there-is-a-valid-path-in-a-grid
1392 最长快乐前缀   困难 0.349 https://leetcode-cn.com/problems/longest-happy-prefix
1393 股票的资本损益   中等 0.87 https://leetcode-cn.com/problems/capital-gainloss Lock
1394 找出数组中的幸运数   简单 0.677 https://leetcode-cn.com/problems/find-lucky-integer-in-an-array
1395 统计作战单位数   中等 0.822 https://leetcode-cn.com/problems/count-number-of-teams
1396 设计地铁系统   中等 0.445 https://leetcode-cn.com/problems/design-underground-system
1397 找到所有好字符串   困难 0.316 https://leetcode-cn.com/problems/find-all-good-strings
1398 购买了产品A和产品B却没有购买产品C的顾客   中等 0.809 https://leetcode-cn.com/problems/customers-who-bought-products-a-and-b-but-not-c Lock
1399 统计最大组的数目   简单 0.642 https://leetcode-cn.com/problems/count-largest-group
1400 构造 K 个回文字符串   中等 0.566 https://leetcode-cn.com/problems/construct-k-palindrome-strings
1401 圆和矩形是否有重叠   中等 0.361 https://leetcode-cn.com/problems/circle-and-rectangle-overlapping
1402 做菜顺序   困难 0.725 https://leetcode-cn.com/problems/reducing-dishes
1403 非递增顺序的最小子序列   简单 0.701 https://leetcode-cn.com/problems/minimum-subsequence-in-non-increasing-order
1404 将二进制表示减到 1 的步骤数   中等 0.466 https://leetcode-cn.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one
1405 最长快乐字符串   中等 0.445 https://leetcode-cn.com/problems/longest-happy-string
1406 石子游戏 III   困难 0.563 https://leetcode-cn.com/problems/stone-game-iii
1407 排名靠前的旅行者   简单 0.663 https://leetcode-cn.com/problems/top-travellers Lock
1408 数组中的字符串匹配   简单 0.593 https://leetcode-cn.com/problems/string-matching-in-an-array
1409 查询带键的排列   中等 0.795 https://leetcode-cn.com/problems/queries-on-a-permutation-with-key
1410 HTML 实体解析器   中等 0.498 https://leetcode-cn.com/problems/html-entity-parser
1411 给 N x 3 网格图涂色的方案数   困难 0.568 https://leetcode-cn.com/problems/number-of-ways-to-paint-n-x-3-grid
1412 查找成绩处于中游的的学生   困难 0.613 https://leetcode-cn.com/problems/find-the-quiet-students-in-all-exams Lock
1413 逐步求和得到正数的最小值   简单 0.68 https://leetcode-cn.com/problems/minimum-value-to-get-positive-step-by-step-sum
1414 和为 K 的最少斐波那契数字数目   中等 0.542 https://leetcode-cn.com/problems/find-the-minimum-number-of-fibonacci-numbers-whose-sum-is-k
1415 长度为 n 的开心字符串中字典序第 k 小的字符串   中等 0.689 https://leetcode-cn.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
1416 恢复数组   困难 0.349 https://leetcode-cn.com/problems/restore-the-array
1417 重新格式化字符串   简单 0.506 https://leetcode-cn.com/problems/reformat-the-string
1418 点菜展示表   中等 0.567 https://leetcode-cn.com/problems/display-table-of-food-orders-in-a-restaurant
1419 数青蛙   中等 0.375 https://leetcode-cn.com/problems/minimum-number-of-frogs-croaking
1420 生成数组   困难 0.57 https://leetcode-cn.com/problems/build-array-where-you-can-find-the-maximum-exactly-k-comparisons
1421 净现值查询   中等 0.736 https://leetcode-cn.com/problems/npv-queries Lock
1422 分割字符串的最大得分   简单 0.525 https://leetcode-cn.com/problems/maximum-score-after-splitting-a-string
1423 可获得的最大点数   中等 0.402 https://leetcode-cn.com/problems/maximum-points-you-can-obtain-from-cards
1424 对角线遍历 II   中等 0.361 https://leetcode-cn.com/problems/diagonal-traverse-ii
1425 带限制的子序列和   困难 0.405 https://leetcode-cn.com/problems/constrained-subsequence-sum
1426 数元素   简单 0.639 https://leetcode-cn.com/problems/counting-elements Lock
1427 字符串的左右移   简单 0.671 https://leetcode-cn.com/problems/perform-string-shifts Lock
1428 至少有一个 1 的最左端列   中等 0.687 https://leetcode-cn.com/problems/leftmost-column-with-at-least-a-one Lock
1429 First Unique Number   中等 0.554 https://leetcode-cn.com/problems/first-unique-number Lock
1430 Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree   中等 0.632 https://leetcode-cn.com/problems/check-if-a-string-is-a-valid-sequence-from-root-to-leaves-path-in-a-binary-tree Lock
1431 拥有最多糖果的孩子   简单 0.876 https://leetcode-cn.com/problems/kids-with-the-greatest-number-of-candies
1432 改变一个整数能得到的最大差值   中等 0.382 https://leetcode-cn.com/problems/max-difference-you-can-get-from-changing-an-integer
1433 检查一个字符串是否可以打破另一个字符串   中等 0.615 https://leetcode-cn.com/problems/check-if-a-string-can-break-another-string
1434 每个人戴不同帽子的方案数   困难 0.393 https://leetcode-cn.com/problems/number-of-ways-to-wear-different-hats-to-each-other
1435 Create a Session Bar Chart   简单 0.622 https://leetcode-cn.com/problems/create-a-session-bar-chart Lock
1436 旅行终点站   简单 0.792 https://leetcode-cn.com/problems/destination-city
1437 是否所有 1 都至少相隔 k 个元素   中等 0.61 https://leetcode-cn.com/problems/check-if-all-1s-are-at-least-length-k-places-away
1438 绝对差不超过限制的最长连续子数组   中等 0.383 https://leetcode-cn.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit
1439 有序矩阵中的第 k 个最小数组和   困难 0.535 https://leetcode-cn.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows
1440 计算布尔表达式的值   中等 0.725 https://leetcode-cn.com/problems/evaluate-boolean-expression Lock
1441 用栈操作构建数组   简单 0.639 https://leetcode-cn.com/problems/build-an-array-with-stack-operations
1442 形成两个异或相等数组的三元组数目   中等 0.632 https://leetcode-cn.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor
1443 收集树上所有苹果的最少时间   中等 0.441 https://leetcode-cn.com/problems/minimum-time-to-collect-all-apples-in-a-tree
1444 切披萨的方案数   困难 0.493 https://leetcode-cn.com/problems/number-of-ways-of-cutting-a-pizza
1445 苹果和桔子   中等 0.929 https://leetcode-cn.com/problems/apples-oranges Lock
1446 连续字符   简单 0.588 https://leetcode-cn.com/problems/consecutive-characters
1447 最简分数   中等 0.599 https://leetcode-cn.com/problems/simplified-fractions
1448 统计二叉树中好节点的数目   中等 0.699 https://leetcode-cn.com/problems/count-good-nodes-in-binary-tree
1449 数位成本和为目标值的最大数字   困难 0.359 https://leetcode-cn.com/problems/form-largest-integer-with-digits-that-add-up-to-target
1450 在既定时间做作业的学生人数   简单 0.817 https://leetcode-cn.com/problems/number-of-students-doing-homework-at-a-given-time
1451 重新排列句子中的单词   中等 0.472 https://leetcode-cn.com/problems/rearrange-words-in-a-sentence
1452 收藏清单   中等 0.462 https://leetcode-cn.com/problems/people-whose-list-of-favorite-companies-is-not-a-subset-of-another-list
1453 圆形靶内的最大飞镖数量   困难 0.338 https://leetcode-cn.com/problems/maximum-number-of-darts-inside-of-a-circular-dartboard
1454  活跃用户   中等 0.433 https://leetcode-cn.com/problems/active-users Lock
1455 检查单词是否为句中其他单词的前缀   简单 0.641 https://leetcode-cn.com/problems/check-if-a-word-occurs-as-a-prefix-of-any-word-in-a-sentence
1456 定长子串中元音的最大数目   中等 0.463 https://leetcode-cn.com/problems/maximum-number-of-vowels-in-a-substring-of-given-length
1457 二叉树中的伪回文路径   中等 0.63 https://leetcode-cn.com/problems/pseudo-palindromic-paths-in-a-binary-tree
1458 两个子序列的最大点积   困难 0.407 https://leetcode-cn.com/problems/max-dot-product-of-two-subsequences
1459 矩形面积   中等 0.448 https://leetcode-cn.com/problems/rectangles-area Lock
1460 通过翻转子数组使两个数组相等   简单 0.777 https://leetcode-cn.com/problems/make-two-arrays-equal-by-reversing-sub-arrays
1461 检查一个字符串是否包含所有长度为 K 的二进制子串   中等 0.455 https://leetcode-cn.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k
1462 课程安排 IV   中等 0.376 https://leetcode-cn.com/problems/course-schedule-iv
1463 摘樱桃 II   困难 0.558 https://leetcode-cn.com/problems/cherry-pickup-ii
1464 数组中两元素的最大乘积   简单 0.805 https://leetcode-cn.com/problems/maximum-product-of-two-elements-in-an-array
1465 切割后面积最大的蛋糕   中等 0.279 https://leetcode-cn.com/problems/maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts
1466 重新规划路线   中等 0.506 https://leetcode-cn.com/problems/reorder-routes-to-make-all-paths-lead-to-the-city-zero
1467 两个盒子中球的颜色数相同的概率   困难 0.59 https://leetcode-cn.com/problems/probability-of-a-two-boxes-having-the-same-number-of-distinct-balls
1468 计算税后工资   中等 0.759 https://leetcode-cn.com/problems/calculate-salaries Lock
1469 Find All The Lonely Nodes   简单 0.789 https://leetcode-cn.com/problems/find-all-the-lonely-nodes Lock
1470 重新排列数组   简单 0.875 https://leetcode-cn.com/problems/shuffle-the-array
1471 数组中的 k 个最强值   中等 0.523 https://leetcode-cn.com/problems/the-k-strongest-values-in-an-array
1472 设计浏览器历史记录   中等 0.573 https://leetcode-cn.com/problems/design-browser-history
1473 给房子涂色 III   困难 0.467 https://leetcode-cn.com/problems/paint-house-iii
1474 删除链表 M 个节点之后的 N 个节点   简单 0.68 https://leetcode-cn.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list Lock
1475 商品折扣后的最终价格   简单 0.77 https://leetcode-cn.com/problems/final-prices-with-a-special-discount-in-a-shop
1476 子矩形查询   中等 0.927 https://leetcode-cn.com/problems/subrectangle-queries
1477 找两个和为目标值且不重叠的子数组   中等 0.237 https://leetcode-cn.com/problems/find-two-non-overlapping-sub-arrays-each-with-target-sum
1478 安排邮筒   困难 0.525 https://leetcode-cn.com/problems/allocate-mailboxes
1480 一维数组的动态和   简单 0.92 https://leetcode-cn.com/problems/running-sum-of-1d-array
1481 不同整数的最少数目   中等 0.514 https://leetcode-cn.com/problems/least-number-of-unique-integers-after-k-removals
1482 制作 m 束花所需的最少天数   中等 0.392 https://leetcode-cn.com/problems/minimum-number-of-days-to-make-m-bouquets
1483 树节点的第 K 个祖先 困难 0.275 https://leetcode-cn.com/problems/kth-ancestor-of-a-tree-node
1484 克隆含随机指针的二叉树 中等 0.793 https://leetcode-cn.com/problems/clone-binary-tree-with-random-pointer Lock
1485 按日期分组销售产品 简单 0.671 https://leetcode-cn.com/problems/group-sold-products-by-the-date Lock
1486 数组异或操作 简单 0.848 https://leetcode-cn.com/problems/xor-operation-in-an-array
1487 保证文件名唯一 中等 0.282 https://leetcode-cn.com/problems/making-file-names-unique
1488 避免洪水泛滥 中等 0.214 https://leetcode-cn.com/problems/avoid-flood-in-the-city
1489 找到最小生成树里的关键边和伪关键边 困难 0.497 https://leetcode-cn.com/problems/find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree
1490 克隆 N 叉树 中等 0.859 https://leetcode-cn.com/problems/clone-n-ary-tree Lock
1491 去掉最低工资和最高工资后的工资平均值 简单 0.673 https://leetcode-cn.com/problems/average-salary-excluding-the-minimum-and-maximum-salary
1492 n 的第 k 个因子 中等 0.681 https://leetcode-cn.com/problems/the-kth-factor-of-n
1493 删掉一个元素以后全为 1 的最长子数组 中等 0.544 https://leetcode-cn.com/problems/longest-subarray-of-1s-after-deleting-one-element
1494 并行课程 II 困难 0.342 https://leetcode-cn.com/problems/parallel-courses-ii
1495 上月播放的儿童适宜电影 简单 0.542 https://leetcode-cn.com/problems/friendly-movies-streamed-last-month Lock
1496 判断路径是否相交 简单 0.544 https://leetcode-cn.com/problems/path-crossing
1497 检查数组对是否可以被 k 整除 中等 0.386 https://leetcode-cn.com/problems/check-if-array-pairs-are-divisible-by-k
1498 满足条件的子序列数目 中等 0.312 https://leetcode-cn.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition
1499 满足不等式的最大值 困难 0.376 https://leetcode-cn.com/problems/max-value-of-equation
1500 设计文件分享系统 中等 0.408 https://leetcode-cn.com/problems/design-a-file-sharing-system Lock
1501 可以放心投资的国家 中等 0.597 https://leetcode-cn.com/problems/countries-you-can-safely-invest-in Lock
1502 判断能否形成等差数列 简单 0.736 https://leetcode-cn.com/problems/can-make-arithmetic-progression-from-sequence
1503 所有蚂蚁掉下来前的最后一刻 中等 0.491 https://leetcode-cn.com/problems/last-moment-before-all-ants-fall-out-of-a-plank
1504 统计全 1 子矩形 中等 0.559 https://leetcode-cn.com/problems/count-submatrices-with-all-ones
1505 最多 K 次交换相邻数位后得到的最小整数 困难 0.347 https://leetcode-cn.com/problems/minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits
1506 找到 N 叉树的根节点 中等 0.794 https://leetcode-cn.com/problems/find-root-of-n-ary-tree Lock
1507 转变日期格式 简单 0.595 https://leetcode-cn.com/problems/reformat-date
1508 子数组和排序后的区间和 中等 0.618 https://leetcode-cn.com/problems/range-sum-of-sorted-subarray-sums
1509 三次操作后最大值与最小值的最小差 中等 0.527 https://leetcode-cn.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves
1510 石子游戏 IV 困难 0.52 https://leetcode-cn.com/problems/stone-game-iv
1511 消费者下单频率 简单 0.646 https://leetcode-cn.com/problems/customer-order-frequency Lock
1512 好数对的数目 简单 0.855 https://leetcode-cn.com/problems/number-of-good-pairs
1513 仅含 1 的子串数 中等 0.363 https://leetcode-cn.com/problems/number-of-substrings-with-only-1s
1514 概率最大的路径 中等 0.283 https://leetcode-cn.com/problems/path-with-maximum-probability
1515 服务中心的最佳位置 困难 0.32 https://leetcode-cn.com/problems/best-position-for-a-service-centre
1516 移动 N 叉树的子树 困难 0.565 https://leetcode-cn.com/problems/move-sub-tree-of-n-ary-tree Lock
1517 查找拥有有效邮箱的用户 简单 0.779 https://leetcode-cn.com/problems/find-users-with-valid-e-mails Lock
1518 换酒问题 简单 0.684 https://leetcode-cn.com/problems/water-bottles
1519 子树中标签相同的节点数 中等 0.273 https://leetcode-cn.com/problems/number-of-nodes-in-the-sub-tree-with-the-same-label
1520 最多的不重叠子字符串 困难 0.308 https://leetcode-cn.com/problems/maximum-number-of-non-overlapping-substrings
1521 找到最接近目标值的函数值 困难 0.379 https://leetcode-cn.com/problems/find-a-value-of-a-mysterious-function-closest-to-target
1522 N 叉树的直径 中等 0.762 https://leetcode-cn.com/problems/diameter-of-n-ary-tree Lock
1523 在区间范围内统计奇数数目 简单 0.569 https://leetcode-cn.com/problems/count-odd-numbers-in-an-interval-range
1524 和为奇数的子数组数目 中等 0.382 https://leetcode-cn.com/problems/number-of-sub-arrays-with-odd-sum
1525 字符串的好分割数目 中等 0.671 https://leetcode-cn.com/problems/number-of-good-ways-to-split-a-string
1526 形成目标数组的子数组最少增加次数 困难 0.589 https://leetcode-cn.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array
1527 患某种疾病的患者 简单 0.831 https://leetcode-cn.com/problems/patients-with-a-condition Lock
1528 重新排列字符串 简单 0.793 https://leetcode-cn.com/problems/shuffle-string
1529 灯泡开关 IV 中等 0.673 https://leetcode-cn.com/problems/bulb-switcher-iv
1530 好叶子节点对的数量 中等 0.524 https://leetcode-cn.com/problems/number-of-good-leaf-nodes-pairs
1531 压缩字符串 II 困难 0.277 https://leetcode-cn.com/problems/string-compression-ii
1532 最近的三笔订单 中等 0.551 https://leetcode-cn.com/problems/the-most-recent-three-orders Lock
1533 找到最大整数的索引 中等 0.723 https://leetcode-cn.com/problems/find-the-index-of-the-large-integer Lock
1534 统计好三元组 简单 0.782 https://leetcode-cn.com/problems/count-good-triplets
1535 找出数组游戏的赢家 中等 0.439 https://leetcode-cn.com/problems/find-the-winner-of-an-array-game
1536 排布二进制网格的最少交换次数 中等 0.414 https://leetcode-cn.com/problems/minimum-swaps-to-arrange-a-binary-grid
1537 最大得分 困难 0.35 https://leetcode-cn.com/problems/get-the-maximum-score
1538 找出隐藏数组中出现次数最多的元素 中等 0.516 https://leetcode-cn.com/problems/guess-the-majority-in-a-hidden-array Lock
1539 第 k 个缺失的正整数 简单 0.537 https://leetcode-cn.com/problems/kth-missing-positive-number
1540 K 次操作转变字符串 中等 0.29 https://leetcode-cn.com/problems/can-convert-string-in-k-moves
1541 平衡括号字符串的最少插入次数 中等 0.428 https://leetcode-cn.com/problems/minimum-insertions-to-balance-a-parentheses-string
1542 找出最长的超赞子字符串 困难 0.347 https://leetcode-cn.com/problems/find-longest-awesome-substring
1543 产品名称格式修复 简单 0.5 https://leetcode-cn.com/problems/fix-product-name-format Lock
1544 整理字符串 简单 0.475 https://leetcode-cn.com/problems/make-the-string-great
1545 找出第 N 个二进制字符串中的第 K 位 中等 0.545 https://leetcode-cn.com/problems/find-kth-bit-in-nth-binary-string
1546 和为目标值的最大数目不重叠非空子数组数目 中等 0.384 https://leetcode-cn.com/problems/maximum-number-of-non-overlapping-subarrays-with-sum-equals-target
1547 切棍子的最小成本 困难 0.505 https://leetcode-cn.com/problems/minimum-cost-to-cut-a-stick
1548 The Most Similar Path in a Graph 困难 0.575 https://leetcode-cn.com/problems/the-most-similar-path-in-a-graph Lock
1549 每件商品的最新订单 中等 0.674 https://leetcode-cn.com/problems/the-most-recent-orders-for-each-product Lock
1550 存在连续三个奇数的数组 简单 0.694 https://leetcode-cn.com/problems/three-consecutive-odds
1551 使数组中所有元素相等的最小操作数 中等 0.816 https://leetcode-cn.com/problems/minimum-operations-to-make-array-equal
1552 两球之间的磁力 中等 0.478 https://leetcode-cn.com/problems/magnetic-force-between-two-balls
1553 吃掉 N 个橘子的最少天数 困难 0.258 https://leetcode-cn.com/problems/minimum-number-of-days-to-eat-n-oranges
1554 只有一个不同字符的字符串 中等 0.742 https://leetcode-cn.com/problems/strings-differ-by-one-character Lock
1555 银行账户概要 中等 0.408 https://leetcode-cn.com/problems/bank-account-summary Lock
1556 千位分隔数 简单 0.606 https://leetcode-cn.com/problems/thousand-separator
1557 可以到达所有点的最少点数目 中等 0.741 https://leetcode-cn.com/problems/minimum-number-of-vertices-to-reach-all-nodes
1558 得到目标数组的最少函数调用次数 中等 0.613 https://leetcode-cn.com/problems/minimum-numbers-of-function-calls-to-make-target-array
1559 二维网格图中探测环 困难 0.342 https://leetcode-cn.com/problems/detect-cycles-in-2d-grid
1560 圆形赛道上经过次数最多的扇区 简单 0.57 https://leetcode-cn.com/problems/most-visited-sector-in-a-circular-track
1561 你可以获得的最大硬币数目 中等 0.793 https://leetcode-cn.com/problems/maximum-number-of-coins-you-can-get
1562 查找大小为 M 的最新分组 中等 0.293 https://leetcode-cn.com/problems/find-latest-group-of-size-m
1563 石子游戏 V 困难 0.363 https://leetcode-cn.com/problems/stone-game-v
1564 Put Boxes Into the Warehouse I 中等 0.671 https://leetcode-cn.com/problems/put-boxes-into-the-warehouse-i Lock
1565 Unique Orders and Customers Per Month 简单 0.827 https://leetcode-cn.com/problems/unique-orders-and-customers-per-month Lock
1566 重复至少 K 次且长度为 M 的模式 简单 0.429 https://leetcode-cn.com/problems/detect-pattern-of-length-m-repeated-k-or-more-times
1567 乘积为正数的最长子数组长度 中等 0.334 https://leetcode-cn.com/problems/maximum-length-of-subarray-with-positive-product
1568 使陆地分离的最少天数 困难 0.461 https://leetcode-cn.com/problems/minimum-number-of-days-to-disconnect-island
1569 将子数组重新排序得到同一个二叉查找树的方案数 困难 0.458 https://leetcode-cn.com/problems/number-of-ways-to-reorder-array-to-get-same-bst
1570 Dot Product of Two Sparse Vectors 中等 0.799 https://leetcode-cn.com/problems/dot-product-of-two-sparse-vectors Lock
1571 仓库经理 简单 0.783 https://leetcode-cn.com/problems/warehouse-manager Lock
1572 矩阵对角线元素的和 简单 0.813 https://leetcode-cn.com/problems/matrix-diagonal-sum
1573 分割字符串的方案数 中等 0.279 https://leetcode-cn.com/problems/number-of-ways-to-split-a-string
1574 删除最短的子数组使剩余数组有序 中等 0.29 https://leetcode-cn.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted
1575 统计所有可行路径 困难 0.567 https://leetcode-cn.com/problems/count-all-possible-routes
1576 替换所有的问号 简单 0.49 https://leetcode-cn.com/problems/replace-all-s-to-avoid-consecutive-repeating-characters
1577 数的平方等于两数乘积的方法数 中等 0.305 https://leetcode-cn.com/problems/number-of-ways-where-square-of-number-is-equal-to-product-of-two-numbers
1578 避免重复字母的最小删除成本 中等 0.592 https://leetcode-cn.com/problems/minimum-deletion-cost-to-avoid-repeating-letters
1579 保证图可完全遍历 困难 0.448 https://leetcode-cn.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable
1580 Put Boxes Into the Warehouse II 中等 0.773 https://leetcode-cn.com/problems/put-boxes-into-the-warehouse-ii Lock
1581 Customer Who Visited but Did Not Make Any Transactions 简单 0.852 https://leetcode-cn.com/problems/customer-who-visited-but-did-not-make-any-transactions Lock
1582 二进制矩阵中的特殊位置 简单 0.667 https://leetcode-cn.com/problems/special-positions-in-a-binary-matrix
1583 统计不开心的朋友 中等 0.536 https://leetcode-cn.com/problems/count-unhappy-friends
1584 连接所有点的最小费用 中等 0.493 https://leetcode-cn.com/problems/min-cost-to-connect-all-points
1585 检查字符串是否可以通过排序子字符串得到另一个字符串 困难 0.421 https://leetcode-cn.com/problems/check-if-string-is-transformable-with-substring-sort-operations
1586 二叉搜索树迭代器 II 中等 0.605 https://leetcode-cn.com/problems/binary-search-tree-iterator-ii Lock
1587 Bank Account Summary II 简单 0.805 https://leetcode-cn.com/problems/bank-account-summary-ii Lock
1588 所有奇数长度子数组的和 简单 0.822 https://leetcode-cn.com/problems/sum-of-all-odd-length-subarrays
1589 所有排列中的最大和 中等 0.272 https://leetcode-cn.com/problems/maximum-sum-obtained-of-any-permutation
1590 使数组和能被 P 整除 中等 0.225 https://leetcode-cn.com/problems/make-sum-divisible-by-p
1591 奇怪的打印机 II 困难 0.538 https://leetcode-cn.com/problems/strange-printer-ii
1592 重新排列单词间的空格 简单 0.449 https://leetcode-cn.com/problems/rearrange-spaces-between-words
1593 拆分字符串使唯一子字符串的数目最大 中等 0.457 https://leetcode-cn.com/problems/split-a-string-into-the-max-number-of-unique-substrings
1594 矩阵的最大非负积 中等 0.289 https://leetcode-cn.com/problems/maximum-non-negative-product-in-a-matrix
1595 连通两组点的最小成本 困难 0.445 https://leetcode-cn.com/problems/minimum-cost-to-connect-two-groups-of-points
1596 The Most Frequently Ordered Products for Each Customer 中等 0.854 https://leetcode-cn.com/problems/the-most-frequently-ordered-products-for-each-customer Lock
1597 Build Binary Expression Tree From Infix Expression 困难 0.589 https://leetcode-cn.com/problems/build-binary-expression-tree-from-infix-expression
1598 文件夹操作日志搜集器 简单 0.677 https://leetcode-cn.com/problems/crawler-log-folder
1599 经营摩天轮的最大利润 中等 0.412 https://leetcode-cn.com/problems/maximum-profit-of-operating-a-centennial-wheel
1600 皇位继承顺序 中等 0.472 https://leetcode-cn.com/problems/throne-inheritance
1601 最多可达成的换楼请求数目 困难 0.466 https://leetcode-cn.com/problems/maximum-number-of-achievable-transfer-requests
1602 Find Nearest Right Node in Binary Tree 中等 0.681 https://leetcode-cn.com/problems/find-nearest-right-node-in-binary-tree Lock
1603 设计停车系统 简单 0.867 https://leetcode-cn.com/problems/design-parking-system
1604 警告一小时内使用相同员工卡大于等于三次的人 中等 0.386 https://leetcode-cn.com/problems/alert-using-same-key-card-three-or-more-times-in-a-one-hour-period
1605 给定行和列的和求可行矩阵 中等 0.66 https://leetcode-cn.com/problems/find-valid-matrix-given-row-and-column-sums
1606 找到处理最多请求的服务器 困难 0.304 https://leetcode-cn.com/problems/find-servers-that-handled-most-number-of-requests
1607 Sellers With No Sales 简单 0.652 https://leetcode-cn.com/problems/sellers-with-no-sales Lock
1608 特殊数组的特征值 简单 0.675 https://leetcode-cn.com/problems/special-array-with-x-elements-greater-than-or-equal-x
1609 奇偶树 中等 0.538 https://leetcode-cn.com/problems/even-odd-tree
1610 可见点的最大数目 困难 0.23 https://leetcode-cn.com/problems/maximum-number-of-visible-points
1611 使整数变为 0 的最少操作次数 困难 0.556 https://leetcode-cn.com/problems/minimum-one-bit-operations-to-make-integers-zero
1612 Check If Two Expression Trees are Equivalent 中等 0.8 https://leetcode-cn.com/problems/check-if-two-expression-trees-are-equivalent Lock
LCP 01 猜数字   简单 0.833 https://leetcode-cn.com/problems/guess-numbers
LCP 02 分式化简   简单 0.636 https://leetcode-cn.com/problems/deep-dark-fraction
LCP 03 机器人大冒险   中等 0.199 https://leetcode-cn.com/problems/programmable-robot
LCP 04 覆盖   困难 0.325 https://leetcode-cn.com/problems/broken-board-dominoes
LCP 05 发 LeetCoin   困难 0.167 https://leetcode-cn.com/problems/coin-bonus
LCP 06 拿硬币   简单 0.813 https://leetcode-cn.com/problems/na-ying-bi
LCP 07 传递信息   简单 0.563 https://leetcode-cn.com/problems/chuan-di-xin-xi
LCP 08 剧情触发时间   中等 0.224 https://leetcode-cn.com/problems/ju-qing-hong-fa-shi-jian
LCP 09 最小跳跃次数   困难 0.189 https://leetcode-cn.com/problems/zui-xiao-tiao-yue-ci-shu
LCP 10 二叉树任务调度   困难 0.505 https://leetcode-cn.com/problems/er-cha-shu-ren-wu-diao-du
LCP 11 期望个数统计   简单 0.567 https://leetcode-cn.com/problems/qi-wang-ge-shu-tong-ji
LCP 12 小张刷题计划   中等 0.28 https://leetcode-cn.com/problems/xiao-zhang-shua-ti-ji-hua
LCP 13 寻宝   困难 0.197 https://leetcode-cn.com/problems/xun-bao
LCP 14 切分数组   困难 0.131 https://leetcode-cn.com/problems/qie-fen-shu-zu
LCP 15 游乐园的迷宫   困难 0.483 https://leetcode-cn.com/problems/you-le-yuan-de-mi-gong
LCP 16 游乐园的游览计划   困难 0.222 https://leetcode-cn.com/problems/you-le-yuan-de-you-lan-ji-hua
LCP 17 速算机器人 简单 0.81 https://leetcode-cn.com/problems/nGK0Fy
LCP 18 早餐组合 简单 0.247 https://leetcode-cn.com/problems/2vYnGI
LCP 19 秋叶收藏集 中等 0.511 https://leetcode-cn.com/problems/UlBDOe
LCP 20 快速公交 困难 0.246 https://leetcode-cn.com/problems/meChtZ
LCP 21 追逐游戏 困难 0.238 https://leetcode-cn.com/problems/Za25hA
LCP 22 黑白方格画 简单 0.265 https://leetcode-cn.com/problems/ccw6C7
LCP 23 魔术排列 中等 0.265 https://leetcode-cn.com/problems/er94lq
LCP 24 数字游戏 困难 0.198 https://leetcode-cn.com/problems/5TxKeK
LCP 25 古董键盘 困难 0.243 https://leetcode-cn.com/problems/Uh984O
LCP 26 导航装置 困难 0.228 https://leetcode-cn.com/problems/hSRGyL
LCP 27 黑盒光线反射 困难 0.202 https://leetcode-cn.com/problems/IQvJ9i
剑指 Offer 03 数组中重复的数字   简单 0.671 https://leetcode-cn.com/problems/shu-zu-zhong-zhong-fu-de-shu-zi-lcof
剑指 Offer 04 二维数组中的查找   简单 0.409 https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof
剑指 Offer 05 替换空格   简单 0.768 https://leetcode-cn.com/problems/ti-huan-kong-ge-lcof
剑指 Offer 06 从尾到头打印链表   简单 0.759 https://leetcode-cn.com/problems/cong-wei-dao-tou-da-yin-lian-biao-lcof
剑指 Offer 07 重建二叉树   中等 0.681 https://leetcode-cn.com/problems/zhong-jian-er-cha-shu-lcof
剑指 Offer 09 用两个栈实现队列   简单 0.713 https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof
剑指 Offer 10- I 斐波那契数列   简单 0.331 https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof
剑指 Offer 10- II 青蛙跳台阶问题   简单 0.415 https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof
剑指 Offer 11 旋转数组的最小数字   简单 0.474 https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof
剑指 Offer 12 矩阵中的路径   中等 0.439 https://leetcode-cn.com/problems/ju-zhen-zhong-de-lu-jing-lcof
剑指 Offer 13 机器人的运动范围   中等 0.487 https://leetcode-cn.com/problems/ji-qi-ren-de-yun-dong-fan-wei-lcof
剑指 Offer 14- I 剪绳子   中等 0.543 https://leetcode-cn.com/problems/jian-sheng-zi-lcof
剑指 Offer 14- II 剪绳子 II   中等 0.304 https://leetcode-cn.com/problems/jian-sheng-zi-ii-lcof
剑指 Offer 15 二进制中1的个数   简单 0.736 https://leetcode-cn.com/problems/er-jin-zhi-zhong-1de-ge-shu-lcof
剑指 Offer 16 数值的整数次方   中等 0.328 https://leetcode-cn.com/problems/shu-zhi-de-zheng-shu-ci-fang-lcof
剑指 Offer 17 打印从1到最大的n位数   简单 0.785 https://leetcode-cn.com/problems/da-yin-cong-1dao-zui-da-de-nwei-shu-lcof
剑指 Offer 18 删除链表的节点   简单 0.587 https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof
剑指 Offer 19 正则表达式匹配   困难 0.347 https://leetcode-cn.com/problems/zheng-ze-biao-da-shi-pi-pei-lcof
剑指 Offer 20 表示数值的字符串   中等 0.201 https://leetcode-cn.com/problems/biao-shi-shu-zhi-de-zi-fu-chuan-lcof
剑指 Offer 21 调整数组顺序使奇数位于偶数前面   简单 0.641 https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof
剑指 Offer 22 链表中倒数第k个节点   简单 0.786 https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof
剑指 Offer 24 反转链表   简单 0.751 https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof
剑指 Offer 25 合并两个排序的链表   简单 0.741 https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof
剑指 Offer 26 树的子结构   中等 0.463 https://leetcode-cn.com/problems/shu-de-zi-jie-gou-lcof
剑指 Offer 27 二叉树的镜像   简单 0.786 https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof
剑指 Offer 28 对称的二叉树   简单 0.574 https://leetcode-cn.com/problems/dui-cheng-de-er-cha-shu-lcof
剑指 Offer 29 顺时针打印矩阵   简单 0.457 https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof
剑指 Offer 30 包含min函数的栈   简单 0.577 https://leetcode-cn.com/problems/bao-han-minhan-shu-de-zhan-lcof
剑指 Offer 31 栈的压入、弹出序列   中等 0.577 https://leetcode-cn.com/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof
剑指 Offer 32 - I 从上到下打印二叉树   中等 0.641 https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-lcof
剑指 Offer 32 - II 从上到下打印二叉树 II   简单 0.686 https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-ii-lcof
剑指 Offer 32 - III 从上到下打印二叉树 III   中等 0.584 https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof
剑指 Offer 33 二叉搜索树的后序遍历序列   中等 0.512 https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof
剑指 Offer 34 二叉树中和为某一值的路径   中等 0.561 https://leetcode-cn.com/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof
剑指 Offer 35 复杂链表的复制   中等 0.704 https://leetcode-cn.com/problems/fu-za-lian-biao-de-fu-zhi-lcof
剑指 Offer 36 二叉搜索树与双向链表   中等 0.627 https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof
剑指 Offer 37 序列化二叉树   困难 0.515 https://leetcode-cn.com/problems/xu-lie-hua-er-cha-shu-lcof
剑指 Offer 38 字符串的排列   中等 0.534 https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof
剑指 Offer 39 数组中出现次数超过一半的数字   简单 0.676 https://leetcode-cn.com/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof
剑指 Offer 40 最小的k个数   简单 0.581 https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof
剑指 Offer 41 数据流中的中位数   困难 0.552 https://leetcode-cn.com/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof
剑指 Offer 42 连续子数组的最大和   简单 0.597 https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof
剑指 Offer 43 1～n整数中1出现的次数   中等 0.447 https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof
剑指 Offer 44 数字序列中某一位的数字   中等 0.382 https://leetcode-cn.com/problems/shu-zi-xu-lie-zhong-mou-yi-wei-de-shu-zi-lcof
剑指 Offer 45 把数组排成最小的数   中等 0.555 https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof
剑指 Offer 46 把数字翻译成字符串   中等 0.542 https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof
剑指 Offer 47 礼物的最大价值   中等 0.676 https://leetcode-cn.com/problems/li-wu-de-zui-da-jie-zhi-lcof
剑指 Offer 48 最长不含重复字符的子字符串   中等 0.452 https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof
剑指 Offer 49 丑数   中等 0.632 https://leetcode-cn.com/problems/chou-shu-lcof
剑指 Offer 50 第一个只出现一次的字符   简单 0.599 https://leetcode-cn.com/problems/di-yi-ge-zhi-chu-xian-yi-ci-de-zi-fu-lcof
剑指 Offer 51 数组中的逆序对   困难 0.453 https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof
剑指 Offer 52 两个链表的第一个公共节点   简单 0.635 https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof
剑指 Offer 53 - I 在排序数组中查找数字 I   简单 0.527 https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof
剑指 Offer 53 - II 0～n-1中缺失的数字   简单 0.445 https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof
剑指 Offer 54 二叉搜索树的第k大节点   简单 0.731 https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof
剑指 Offer 55 - I 二叉树的深度   简单 0.786 https://leetcode-cn.com/problems/er-cha-shu-de-shen-du-lcof
剑指 Offer 55 - II 平衡二叉树   简单 0.577 https://leetcode-cn.com/problems/ping-heng-er-cha-shu-lcof
剑指 Offer 56 - I 数组中数字出现的次数   中等 0.725 https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-lcof
剑指 Offer 56 - II 数组中数字出现的次数 II   中等 0.789 https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof
剑指 Offer 57 和为s的两个数字   简单 0.654 https://leetcode-cn.com/problems/he-wei-sde-liang-ge-shu-zi-lcof
剑指 Offer 57 - II 和为s的连续正数序列   简单 0.686 https://leetcode-cn.com/problems/he-wei-sde-lian-xu-zheng-shu-xu-lie-lcof
剑指 Offer 58 - I 翻转单词顺序   简单 0.418 https://leetcode-cn.com/problems/fan-zhuan-dan-ci-shun-xu-lcof
剑指 Offer 58 - II 左旋转字符串   简单 0.847 https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof
剑指 Offer 59 - I 滑动窗口的最大值   简单 0.439 https://leetcode-cn.com/problems/hua-dong-chuang-kou-de-zui-da-zhi-lcof
剑指 Offer 59 - II 队列的最大值   中等 0.484 https://leetcode-cn.com/problems/dui-lie-de-zui-da-zhi-lcof
剑指 Offer 60 n个骰子的点数   简单 0.534 https://leetcode-cn.com/problems/nge-tou-zi-de-dian-shu-lcof
剑指 Offer 61 扑克牌中的顺子   简单 0.439 https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof
剑指 Offer 62 圆圈中最后剩下的数字   简单 0.614 https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof
剑指 Offer 63 股票的最大利润   中等 0.634 https://leetcode-cn.com/problems/gu-piao-de-zui-da-li-run-lcof
剑指 Offer 64 求1+2+…+n   中等 0.857 https://leetcode-cn.com/problems/qiu-12n-lcof
剑指 Offer 65 不用加减乘除做加法   简单 0.558 https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof
剑指 Offer 66 构建乘积数组   简单 0.579 https://leetcode-cn.com/problems/gou-jian-cheng-ji-shu-zu-lcof
剑指 Offer 67 把字符串转换成整数   中等 0.27 https://leetcode-cn.com/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof
剑指 Offer 68 - I 二叉搜索树的最近公共祖先   简单 0.678 https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-zui-jin-gong-gong-zu-xian-lcof
剑指 Offer 68 - II 二叉树的最近公共祖先   简单 0.681 https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof
面试题 01.01 判定字符是否唯一   简单 0.72 https://leetcode-cn.com/problems/is-unique-lcci
面试题 01.02 判定是否互为字符重排   简单 0.666 https://leetcode-cn.com/problems/check-permutation-lcci
面试题 01.03 URL化   简单 0.581 https://leetcode-cn.com/problems/string-to-url-lcci
面试题 01.04 回文排列   简单 0.54 https://leetcode-cn.com/problems/palindrome-permutation-lcci
面试题 01.05 一次编辑   中等 0.321 https://leetcode-cn.com/problems/one-away-lcci
面试题 01.06 字符串压缩   简单 0.483 https://leetcode-cn.com/problems/compress-string-lcci
面试题 01.07 旋转矩阵   中等 0.79 https://leetcode-cn.com/problems/rotate-matrix-lcci
面试题 01.08 零矩阵   中等 0.644 https://leetcode-cn.com/problems/zero-matrix-lcci
面试题 01.09 字符串轮转   简单 0.546 https://leetcode-cn.com/problems/string-rotation-lcci
面试题 02.01 移除重复节点   简单 0.654 https://leetcode-cn.com/problems/remove-duplicate-node-lcci
面试题 02.02 返回倒数第 k 个节点   简单 0.784 https://leetcode-cn.com/problems/kth-node-from-end-of-list-lcci
面试题 02.03 删除中间节点   简单 0.839 https://leetcode-cn.com/problems/delete-middle-node-lcci
面试题 02.04 分割链表   中等 0.629 https://leetcode-cn.com/problems/partition-list-lcci
面试题 02.05 链表求和   中等 0.458 https://leetcode-cn.com/problems/sum-lists-lcci
面试题 02.06 回文链表   简单 0.474 https://leetcode-cn.com/problems/palindrome-linked-list-lcci
面试题 02.07 链表相交   简单 0.679 https://leetcode-cn.com/problems/intersection-of-two-linked-lists-lcci
面试题 02.08 环路检测   中等 0.505 https://leetcode-cn.com/problems/linked-list-cycle-lcci
面试题 03.01 三合一   简单 0.551 https://leetcode-cn.com/problems/three-in-one-lcci
面试题 03.02 栈的最小值   简单 0.593 https://leetcode-cn.com/problems/min-stack-lcci
面试题 03.03 堆盘子   中等 0.375 https://leetcode-cn.com/problems/stack-of-plates-lcci
面试题 03.04 化栈为队   简单 0.72 https://leetcode-cn.com/problems/implement-queue-using-stacks-lcci
面试题 03.05 栈排序   中等 0.534 https://leetcode-cn.com/problems/sort-of-stacks-lcci
面试题 03.06 动物收容所   简单 0.596 https://leetcode-cn.com/problems/animal-shelter-lcci
面试题 04.01 节点间通路   中等 0.534 https://leetcode-cn.com/problems/route-between-nodes-lcci
面试题 04.02 最小高度树   简单 0.79 https://leetcode-cn.com/problems/minimum-height-tree-lcci
面试题 04.03 特定深度节点链表   中等 0.809 https://leetcode-cn.com/problems/list-of-depth-lcci
面试题 04.04 检查平衡性   简单 0.556 https://leetcode-cn.com/problems/check-balance-lcci
面试题 04.05 合法二叉搜索树   中等 0.334 https://leetcode-cn.com/problems/legal-binary-search-tree-lcci
面试题 04.06 后继者   中等 0.576 https://leetcode-cn.com/problems/successor-lcci
面试题 04.08 首个共同祖先   中等 0.685 https://leetcode-cn.com/problems/first-common-ancestor-lcci
面试题 04.09 二叉搜索树序列   困难 0.441 https://leetcode-cn.com/problems/bst-sequences-lcci
面试题 04.10 检查子树   中等 0.712 https://leetcode-cn.com/problems/check-subtree-lcci
面试题 04.12 求和路径   中等 0.483 https://leetcode-cn.com/problems/paths-with-sum-lcci
面试题 05.01 插入   简单 0.49 https://leetcode-cn.com/problems/insert-into-bits-lcci
面试题 05.02 二进制数转字符串   中等 0.593 https://leetcode-cn.com/problems/bianry-number-to-string-lcci
面试题 05.03 翻转数位   简单 0.483 https://leetcode-cn.com/problems/reverse-bits-lcci
面试题 05.04 下一个数   中等 0.42 https://leetcode-cn.com/problems/closed-number-lcci
面试题 05.06 整数转换   简单 0.502 https://leetcode-cn.com/problems/convert-integer-lcci
面试题 05.07 配对交换   简单 0.685 https://leetcode-cn.com/problems/exchange-lcci
面试题 05.08 绘制直线   中等 0.558 https://leetcode-cn.com/problems/draw-line-lcci
面试题 08.01 三步问题   简单 0.344 https://leetcode-cn.com/problems/three-steps-problem-lcci
面试题 08.02 迷路的机器人   中等 0.338 https://leetcode-cn.com/problems/robot-in-a-grid-lcci
面试题 08.03 魔术索引   简单 0.641 https://leetcode-cn.com/problems/magic-index-lcci
面试题 08.04 幂集   中等 0.798 https://leetcode-cn.com/problems/power-set-lcci
面试题 08.05 递归乘法   中等 0.673 https://leetcode-cn.com/problems/recursive-mulitply-lcci
面试题 08.06 汉诺塔问题   简单 0.633 https://leetcode-cn.com/problems/hanota-lcci
面试题 08.07 无重复字符串的排列组合   中等 0.812 https://leetcode-cn.com/problems/permutation-i-lcci
面试题 08.08 有重复字符串的排列组合   中等 0.701 https://leetcode-cn.com/problems/permutation-ii-lcci
面试题 08.09 括号   中等 0.806 https://leetcode-cn.com/problems/bracket-lcci
面试题 08.10 颜色填充   简单 0.545 https://leetcode-cn.com/problems/color-fill-lcci
面试题 08.11 硬币   中等 0.502 https://leetcode-cn.com/problems/coin-lcci
面试题 08.12 八皇后   困难 0.744 https://leetcode-cn.com/problems/eight-queens-lcci
面试题 08.13 堆箱子   困难 0.472 https://leetcode-cn.com/problems/pile-box-lcci
面试题 08.14 布尔运算   中等 0.475 https://leetcode-cn.com/problems/boolean-evaluation-lcci
面试题 10.01 合并排序的数组   简单 0.545 https://leetcode-cn.com/problems/sorted-merge-lcci
面试题 10.02 变位词组   中等 0.65 https://leetcode-cn.com/problems/group-anagrams-lcci
面试题 10.03 搜索旋转数组   中等 0.399 https://leetcode-cn.com/problems/search-rotate-array-lcci
面试题 10.05 稀疏数组搜索   简单 0.573 https://leetcode-cn.com/problems/sparse-array-search-lcci
面试题 10.09 排序矩阵查找   中等 0.449 https://leetcode-cn.com/problems/sorted-matrix-search-lcci
面试题 10.10 数字流的秩   中等 0.601 https://leetcode-cn.com/problems/rank-from-stream-lcci
面试题 10.11 峰与谷   中等 0.655 https://leetcode-cn.com/problems/peaks-and-valleys-lcci
面试题 16.01 交换数字   中等 0.825 https://leetcode-cn.com/problems/swap-numbers-lcci
面试题 16.02 单词频率   中等 0.759 https://leetcode-cn.com/problems/words-frequency-lcci
面试题 16.03 交点   困难 0.454 https://leetcode-cn.com/problems/intersection-lcci
面试题 16.04 井字游戏   中等 0.425 https://leetcode-cn.com/problems/tic-tac-toe-lcci
面试题 16.05 阶乘尾数   简单 0.469 https://leetcode-cn.com/problems/factorial-zeros-lcci
面试题 16.06 最小差   中等 0.404 https://leetcode-cn.com/problems/smallest-difference-lcci
面试题 16.07 最大数值   简单 0.719 https://leetcode-cn.com/problems/maximum-lcci
面试题 16.08 整数的英语表示   困难 0.354 https://leetcode-cn.com/problems/english-int-lcci
面试题 16.09 运算   中等 0.469 https://leetcode-cn.com/problems/operations-lcci
面试题 16.10 生存人数   中等 0.665 https://leetcode-cn.com/problems/living-people-lcci
面试题 16.11 跳水板   简单 0.402 https://leetcode-cn.com/problems/diving-board-lcci
面试题 16.13 平分正方形   中等 0.427 https://leetcode-cn.com/problems/bisect-squares-lcci
面试题 16.14 最佳直线   中等 0.517 https://leetcode-cn.com/problems/best-line-lcci
面试题 16.15 珠玑妙算   简单 0.497 https://leetcode-cn.com/problems/master-mind-lcci
面试题 16.16 部分排序   中等 0.429 https://leetcode-cn.com/problems/sub-sort-lcci
面试题 16.17 连续数列   简单 0.595 https://leetcode-cn.com/problems/contiguous-sequence-lcci
面试题 16.18 模式匹配   中等 0.261 https://leetcode-cn.com/problems/pattern-matching-lcci
面试题 16.19 水域大小   中等 0.579 https://leetcode-cn.com/problems/pond-sizes-lcci
面试题 16.20 T9键盘   中等 0.714 https://leetcode-cn.com/problems/t9-lcci
面试题 16.21 交换和   中等 0.446 https://leetcode-cn.com/problems/sum-swap-lcci
面试题 16.22 兰顿蚂蚁   中等 0.568 https://leetcode-cn.com/problems/langtons-ant-lcci
面试题 16.24 数对和   中等 0.464 https://leetcode-cn.com/problems/pairs-with-sum-lcci
面试题 16.25 LRU缓存   中等 0.554 https://leetcode-cn.com/problems/lru-cache-lcci
面试题 16.26 计算器   中等 0.375 https://leetcode-cn.com/problems/calculator-lcci
面试题 17.01 不用加号的加法   简单 0.538 https://leetcode-cn.com/problems/add-without-plus-lcci
面试题 17.04 消失的数字   简单 0.642 https://leetcode-cn.com/problems/missing-number-lcci
面试题 17.05 字母与数字   中等 0.374 https://leetcode-cn.com/problems/find-longest-subarray-lcci
面试题 17.06 2出现的次数   中等 0.409 https://leetcode-cn.com/problems/number-of-2s-in-range-lcci
面试题 17.07 婴儿名字   中等 0.381 https://leetcode-cn.com/problems/baby-names-lcci
面试题 17.08 马戏团人塔   中等 0.231 https://leetcode-cn.com/problems/circus-tower-lcci
面试题 17.09 第 k 个数   中等 0.53 https://leetcode-cn.com/problems/get-kth-magic-number-lcci
面试题 17.10 主要元素   简单 0.639 https://leetcode-cn.com/problems/find-majority-element-lcci
面试题 17.11 单词距离   中等 0.67 https://leetcode-cn.com/problems/find-closest-lcci
面试题 17.12 BiNode   简单 0.59 https://leetcode-cn.com/problems/binode-lcci
面试题 17.13 恢复空格   中等 0.515 https://leetcode-cn.com/problems/re-space-lcci
面试题 17.14 最小K个数   中等 0.557 https://leetcode-cn.com/problems/smallest-k-lcci
面试题 17.15 最长单词   中等 0.369 https://leetcode-cn.com/problems/longest-word-lcci
面试题 17.16 按摩师   简单 0.534 https://leetcode-cn.com/problems/the-masseuse-lcci
面试题 17.17 多次搜索   中等 0.423 https://leetcode-cn.com/problems/multi-search-lcci
面试题 17.18 最短超串   中等 0.434 https://leetcode-cn.com/problems/shortest-supersequence-lcci
面试题 17.19 消失的两个数字   困难 0.55 https://leetcode-cn.com/problems/missing-two-lcci
面试题 17.20 连续中值   困难 0.541 https://leetcode-cn.com/problems/continuous-median-lcci
面试题 17.21 直方图的水量   困难 0.648 https://leetcode-cn.com/problems/volume-of-histogram-lcci
面试题 17.22 单词转换   中等 0.324 https://leetcode-cn.com/problems/word-transformer-lcci
面试题 17.23 最大黑方阵   中等 0.346 https://leetcode-cn.com/problems/max-black-square-lcci
面试题 17.24 最大子矩阵   困难 0.505 https://leetcode-cn.com/problems/max-submatrix-lcci
面试题 17.25 单词矩阵   困难 0.43 https://leetcode-cn.com/problems/word-rectangle-lcci
面试题 17.26 稀疏相似度   困难 0.315 https://leetcode-cn.com/problems/sparse-similarity-lcci

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