|
5 | 5 | |-|-|-| |
6 | 6 | |215. 数组中的第K个最大元素|14|https://leetcode-cn.com/problems/kth-largest-element-in-an-array| |
7 | 7 | |236. 二叉树的最近公共祖先|10|https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree| |
| 8 | +|206. 反转链表|9|https://leetcode-cn.com/problems/reverse-linked-list| |
8 | 9 | |48. 旋转图像|9|https://leetcode-cn.com/problems/rotate-image| |
9 | | -|206. 反转链表|8|https://leetcode-cn.com/problems/reverse-linked-list| |
10 | 10 | |124. 二叉树中的最大路径和|7|https://leetcode-cn.com/problems/binary-tree-maximum-path-sum| |
11 | 11 | |53. 最大子序和|7|https://leetcode-cn.com/problems/maximum-subarray| |
12 | 12 | |91. 解码方法|6|https://leetcode-cn.com/problems/decode-ways| |
13 | 13 | |151. 翻转字符串里的单词|6|https://leetcode-cn.com/problems/reverse-words-in-a-string| |
14 | 14 | |543. 二叉树的直径|6|https://leetcode-cn.com/problems/diameter-of-binary-tree| |
15 | 15 | |297. 二叉树的序列化与反序列化|6|https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree| |
16 | 16 | |146. LRU缓存机制|5|https://leetcode-cn.com/problems/lru-cache| |
| 17 | +|450. 删除二叉搜索树中的节点|5|https://leetcode-cn.com/problems/delete-node-in-a-bst| |
17 | 18 | |22. 括号生成|5|https://leetcode-cn.com/problems/generate-parentheses| |
18 | 19 | |47. 全排列 II|5|https://leetcode-cn.com/problems/permutations-ii| |
| 20 | +|224. 基本计算器|5|https://leetcode-cn.com/problems/basic-calculator| |
19 | 21 | |468. 验证IP地址|4|https://leetcode-cn.com/problems/validate-ip-address| |
20 | | -|450. 删除二叉搜索树中的节点|4|https://leetcode-cn.com/problems/delete-node-in-a-bst| |
| 22 | +|110. 平衡二叉树|4|https://leetcode-cn.com/problems/balanced-binary-tree| |
21 | 23 | |94. 二叉树的中序遍历|4|https://leetcode-cn.com/problems/binary-tree-inorder-traversal| |
22 | 24 | |15. 三数之和|4|https://leetcode-cn.com/problems/3sum| |
23 | 25 | |121. 买卖股票的最佳时机|4|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock| |
24 | 26 | |39. 组合总和|4|https://leetcode-cn.com/problems/combination-sum| |
25 | 27 | |1. 两数之和|4|https://leetcode-cn.com/problems/two-sum| |
26 | 28 | |3. 无重复字符的最长子串|4|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters| |
| 29 | +|207. 课程表|4|https://leetcode-cn.com/problems/course-schedule| |
27 | 30 | |138. 复制带随机指针的链表|4|https://leetcode-cn.com/problems/copy-list-with-random-pointer| |
28 | 31 | |69. x 的平方根|4|https://leetcode-cn.com/problems/sqrtx| |
29 | 32 | |240. 搜索二维矩阵 II|4|https://leetcode-cn.com/problems/search-a-2d-matrix-ii| |
30 | 33 | |4. 寻找两个正序数组的中位数|3|https://leetcode-cn.com/problems/median-of-two-sorted-arrays| |
31 | | -|110. 平衡二叉树|3|https://leetcode-cn.com/problems/balanced-binary-tree| |
32 | 34 | |103. 二叉树的锯齿形层次遍历|3|https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal| |
33 | 35 | |560. 和为K的子数组|3|https://leetcode-cn.com/problems/subarray-sum-equals-k| |
34 | 36 | |162. 寻找峰值|3|https://leetcode-cn.com/problems/find-peak-element| |
|
38 | 40 | |89. 格雷编码|3|https://leetcode-cn.com/problems/gray-code| |
39 | 41 | |98. 验证二叉搜索树|3|https://leetcode-cn.com/problems/validate-binary-search-tree| |
40 | 42 | |152. 乘积最大子数组|3|https://leetcode-cn.com/problems/maximum-product-subarray| |
41 | | -|207. 课程表|3|https://leetcode-cn.com/problems/course-schedule| |
42 | 43 | |384. 打乱数组|3|https://leetcode-cn.com/problems/shuffle-an-array| |
| 44 | +|37. 解数独|3|https://leetcode-cn.com/problems/sudoku-solver| |
43 | 45 | |36. 有效的数独|3|https://leetcode-cn.com/problems/valid-sudoku| |
44 | 46 | |面试题 08.12. 八皇后|3|https://leetcode-cn.com/problems/eight-queens-lcci| |
| 47 | +|141. 环形链表|3|https://leetcode-cn.com/problems/linked-list-cycle| |
45 | 48 | |153. 寻找旋转排序数组中的最小值|3|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array| |
| 49 | +|33. 搜索旋转排序数组|3|https://leetcode-cn.com/problems/search-in-rotated-sorted-array| |
46 | 50 | |剑指 Offer 46. 把数字翻译成字符串|2|https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof| |
47 | 51 | |415. 字符串相加|2|https://leetcode-cn.com/problems/add-strings| |
| 52 | +|986. 区间列表的交集|2|https://leetcode-cn.com/problems/interval-list-intersections| |
48 | 53 | |547. 省份数量（原朋友圈）|2|https://leetcode-cn.com/problems/number-of-provinces| |
49 | 54 | |34. 在排序数组中查找元素的第一个和最后一个位置|2|https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array| |
| 55 | +|142. 环形链表 II|2|https://leetcode-cn.com/problems/linked-list-cycle-ii| |
50 | 56 | |154. 寻找旋转排序数组中的最小值 II|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii| |
| 57 | +|283. 移动零|2|https://leetcode-cn.com/problems/move-zeroes| |
51 | 58 | |10. 正则表达式匹配|2|https://leetcode-cn.com/problems/regular-expression-matching| |
52 | 59 | |79. 单词搜索|2|https://leetcode-cn.com/problems/word-search| |
53 | 60 | |剑指 Offer 52. 两个链表的第一个公共节点|2|https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof| |
54 | 61 | |76. 最小覆盖子串|2|https://leetcode-cn.com/problems/minimum-window-substring| |
55 | 62 | |449. 序列化和反序列化二叉搜索树|2|https://leetcode-cn.com/problems/serialize-and-deserialize-bst| |
56 | 63 | |300. 最长上升子序列|2|https://leetcode-cn.com/problems/longest-increasing-subsequence| |
| 64 | +|剑指 Offer 33. 二叉搜索树的后序遍历序列|2|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof| |
| 65 | +|剑指 Offer 04. 二维数组中的查找|2|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof| |
57 | 66 | |剑指 Offer 51. 数组中的逆序对|2|https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof| |
| 67 | +|877. 石子游戏|2|https://leetcode-cn.com/problems/stone-game| |
58 | 68 | |59. 螺旋矩阵 II|2|https://leetcode-cn.com/problems/spiral-matrix-ii| |
59 | 69 | |25. K 个一组翻转链表|2|https://leetcode-cn.com/problems/reverse-nodes-in-k-group| |
60 | 70 | |287. 寻找重复数|2|https://leetcode-cn.com/problems/find-the-duplicate-number| |
61 | 71 | |362. 敲击计数器|2|https://leetcode-cn.com/problems/design-hit-counter| |
62 | 72 | |119. 杨辉三角 II|2|https://leetcode-cn.com/problems/pascals-triangle-ii| |
| 73 | +|863. 二叉树中所有距离为 K 的结点|2|https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree| |
63 | 74 | |1095. 山脉数组中查找目标值|2|https://leetcode-cn.com/problems/find-in-mountain-array| |
| 75 | +|295. 数据流的中位数|2|https://leetcode-cn.com/problems/find-median-from-data-stream| |
| 76 | +|8. 字符串转换整数 (atoi)|2|https://leetcode-cn.com/problems/string-to-integer-atoi| |
| 77 | +|129. 求根到叶子节点数字之和|2|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers| |
64 | 78 | |173. 二叉搜索树迭代器|2|https://leetcode-cn.com/problems/binary-search-tree-iterator| |
65 | | -|补充题12. 二叉树的下一个节点|2|https://mp.weixin.qq.com/s/ug9KoqbrVFMPBTqX-ZaKbA| |
| 79 | +|73. 矩阵置零|2|https://leetcode-cn.com/problems/set-matrix-zeroes| |
| 80 | +|补充题12. 二叉树的下一个节点|2|https://mp.weixin.qq.com/s/yewlHvHSilMsrUMFIO8WAA| |
66 | 81 | |补充题6. 手撕堆排序|2|https://leetcode-cn.com/problems/sort-an-array| |
67 | | -|141. 环形链表|2|https://leetcode-cn.com/problems/linked-list-cycle| |
68 | 82 | |148. 排序链表|2|https://leetcode-cn.com/problems/sort-list| |
69 | 83 | |208. 实现 Trie (前缀树)|2|https://leetcode-cn.com/problems/implement-trie-prefix-tree| |
70 | 84 | |706. 设计哈希映射|2|https://leetcode-cn.com/problems/design-hashmap| |
| 85 | +|160. 相交链表|2|https://leetcode-cn.com/problems/intersection-of-two-linked-lists| |
71 | 86 | |428. 序列化和反序列化 N 叉树|2|https://leetcode-cn.com/problems/serialize-and-deserialize-n-ary-tree| |
72 | 87 | |64. 最小路径和|2|https://leetcode-cn.com/problems/minimum-path-sum| |
| 88 | +|116. 填充每个节点的下一个右侧节点指针|2|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node| |
73 | 89 | |105. 从前序与中序遍历序列构造二叉树|2|https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal| |
74 | 90 | |40. 组合总和 II|2|https://leetcode-cn.com/problems/combination-sum-ii| |
75 | 91 | |189. 旋转数组|2|https://leetcode-cn.com/problems/rotate-array| |
76 | | -|33. 搜索旋转排序数组|2|https://leetcode-cn.com/problems/search-in-rotated-sorted-array| |
77 | 92 | |84. 柱状图中最大的矩形|1|https://leetcode-cn.com/problems/largest-rectangle-in-histogram| |
78 | 93 | |120. 三角形最小路径和|1|https://leetcode-cn.com/problems/triangle| |
79 | 94 | |5. 最长回文子串|1|https://leetcode-cn.com/problems/longest-palindromic-substring| |
80 | 95 | |867. 转置矩阵|1|https://leetcode-cn.com/problems/transpose-matrix| |
81 | | -|986. 区间列表的交集|1|https://leetcode-cn.com/problems/interval-list-intersections| |
82 | 96 | |78. 子集|1|https://leetcode-cn.com/problems/subsets| |
83 | 97 | |907. 子数组的最小值之和|1|https://leetcode-cn.com/problems/sum-of-subarray-minimums| |
84 | 98 | |1013. 将数组分成和相等的三个部分|1|https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum| |
85 | | -|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii| |
86 | 99 | |572. 另一个树的子树|1|https://leetcode-cn.com/problems/subtree-of-another-tree| |
87 | 100 | |704. 二分查找|1|https://leetcode-cn.com/problems/binary-search| |
88 | 101 | |171. Excel表列序号|1|https://leetcode-cn.com/problems/excel-sheet-column-number| |
89 | 102 | |150. 逆波兰表达式求值|1|https://leetcode-cn.com/problems/evaluate-reverse-polish-notation| |
90 | | -|283. 移动零|1|https://leetcode-cn.com/problems/move-zeroes| |
91 | 103 | |767. 重构字符串|1|https://leetcode-cn.com/problems/reorganize-string| |
92 | 104 | |459. 重复的子字符串|1|https://leetcode-cn.com/problems/repeated-substring-pattern| |
93 | 105 | |973. 最接近原点的 K 个点|1|https://leetcode-cn.com/problems/k-closest-points-to-origin| |
|
107 | 119 | |700. 二叉搜索树中的搜索|1|https://leetcode-cn.com/problems/search-in-a-binary-search-tree| |
108 | 120 | |701. 二叉搜索树中的插入操作|1|https://leetcode-cn.com/problems/insert-into-a-binary-search-tree| |
109 | 121 | |1312. 让字符串成为回文串的最少插入次数|1|https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome| |
110 | | -|剑指 Offer 33. 二叉搜索树的后序遍历序列|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof| |
111 | 122 | |139. 单词拆分|1|https://leetcode-cn.com/problems/word-break| |
112 | 123 | |557. 反转字符串中的单词 III|1|https://leetcode-cn.com/problems/reverse-words-in-a-string-iii| |
113 | 124 | |60. 第k个排列|1|https://leetcode-cn.com/problems/permutation-sequence| |
114 | | -|剑指 Offer 04. 二维数组中的查找|1|https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof| |
115 | 125 | |848. 字母移位|1|https://leetcode-cn.com/problems/shifting-letters| |
116 | 126 | |569. 员工薪水中位数|1|https://leetcode-cn.com/problems/median-employee-salary| |
117 | 127 | |88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array| |
118 | | -|877. 石子游戏|1|https://leetcode-cn.com/problems/stone-game| |
119 | 128 | |617. 合并二叉树|1|https://leetcode-cn.com/problems/merge-two-binary-trees| |
120 | 129 | |349. 两个数组的交集|1|https://leetcode-cn.com/problems/intersection-of-two-arrays| |
121 | 130 | |713. 乘积小于K的子数组|1|https://leetcode-cn.com/problems/subarray-product-less-than-k| |
122 | | -|37. 解数独|1|https://leetcode-cn.com/problems/sudoku-solver| |
123 | 131 | |102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal| |
124 | 132 | |113. 路径总和 II|1|https://leetcode-cn.com/problems/path-sum-ii| |
125 | 133 | |692. 前K个高频单词|1|https://leetcode-cn.com/problems/top-k-frequent-words| |
126 | 134 | |394. 字符串解码|1|https://leetcode-cn.com/problems/decode-string| |
127 | | -|863. 二叉树中所有距离为 K 的结点|1|https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree| |
128 | 135 | |1155. 掷骰子的N种方法|1|https://leetcode-cn.com/problems/number-of-dice-rolls-with-target-sum| |
129 | 136 | |694. 不同岛屿的数量|1|https://leetcode-cn.com/problems/number-of-distinct-islands| |
130 | 137 | |1314. 矩阵区域和|1|https://leetcode-cn.com/problems/matrix-block-sum| |
|
133 | 140 | |114. 二叉树展开为链表|1|https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list| |
134 | 141 | |104. 二叉树的最大深度|1|https://leetcode-cn.com/problems/maximum-depth-of-binary-tree| |
135 | 142 | |407. 接雨水 II|1|https://leetcode-cn.com/problems/trapping-rain-water-ii| |
136 | | -|295. 数据流的中位数|1|https://leetcode-cn.com/problems/find-median-from-data-stream| |
137 | | -|8. 字符串转换整数 (atoi)|1|https://leetcode-cn.com/problems/string-to-integer-atoi| |
138 | 143 | |剑指 Offer 40. 最小的k个数|1|https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof| |
139 | | -|129. 求根到叶子节点数字之和|1|https://leetcode-cn.com/problems/sum-root-to-leaf-numbers| |
140 | 144 | |347. 前 K 个高频元素|1|https://leetcode-cn.com/problems/top-k-frequent-elements| |
141 | | -|73. 矩阵置零|1|https://leetcode-cn.com/problems/set-matrix-zeroes| |
142 | 145 | |剑指 Offer 31. 栈的压入、弹出序列|1|https://leetcode-cn.com/problems/zhan-de-ya-ru-dan-chu-xu-lie-lcof| |
143 | 146 | |29. 两数相除|1|https://leetcode-cn.com/problems/divide-two-integers| |
144 | 147 | |1356. 根据数字二进制下 1 的数目排序|1|https://leetcode-cn.com/problems/sort-integers-by-the-number-of-1-bits| |
|
148 | 151 | |补充题14. 阿拉伯数字转中文数字|1|| |
149 | 152 | |21. 合并两个有序链表|1|https://leetcode-cn.com/problems/merge-two-sorted-lists| |
150 | 153 | |1358. 包含所有三种字符的子字符串数目|1|https://leetcode-cn.com/problems/number-of-substrings-containing-all-three-characters| |
151 | | -|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists| |
152 | 154 | |剑指 Offer 53 - II. 0～n-1中缺失的数字|1|https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof| |
153 | 155 | |补充题17. 两个有序数组第k小的数|1|| |
154 | 156 | |209. 长度最小的子数组|1|https://leetcode-cn.com/problems/minimum-size-subarray-sum| |
155 | 157 | |227. 基本计算器 II|1|https://leetcode-cn.com/problems/basic-calculator-ii| |
156 | | -|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator| |
157 | 158 | |470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7| |
158 | 159 | |13. 罗马数字转整数|1|https://leetcode-cn.com/problems/roman-to-integer| |
159 | 160 | |643. 子数组最大平均数 I|1|https://leetcode-cn.com/problems/maximum-average-subarray-i| |
160 | 161 | |871. 最低加油次数|1|https://leetcode-cn.com/problems/minimum-number-of-refueling-stops| |
161 | 162 | |1615. 最大网络秩|1|https://leetcode-cn.com/problems/maximal-network-rank| |
162 | 163 | |剑指 Offer 56 - II. 数组中数字出现的次数 II|1|https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof| |
163 | 164 | |1483. 树节点的第 K 个祖先|1|https://leetcode-cn.com/problems/kth-ancestor-of-a-tree-node| |
164 | | -|116. 填充每个节点的下一个右侧节点指针|1|https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node| |
165 | 165 | |1570. 两个稀疏向量的点积|1|https://leetcode-cn.com/problems/dot-product-of-two-sparse-vectors| |
166 | 166 | |628. 三个数的最大乘积|1|https://leetcode-cn.com/problems/maximum-product-of-three-numbers| |
167 | 167 | |145. 二叉树的后序遍历|1|https://leetcode-cn.com/problems/binary-tree-postorder-traversal| |
|
184 | 184 | |168. Excel表列名称|1|https://leetcode-cn.com/problems/excel-sheet-column-title| |
185 | 185 | |2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers| |
186 | 186 | |337. 打家劫舍 III|1|https://leetcode-cn.com/problems/house-robber-iii| |
| 187 | +|518. 零钱兑换 II|1|https://leetcode-cn.com/problems/coin-change-2| |
| 188 | +|844. 比较含退格的字符串|1|https://leetcode-cn.com/problems/backspace-string-compare| |
| 189 | +|353. 贪吃蛇|1|https://leetcode-cn.com/problems/design-snake-game| |
| 190 | +|198. 打家劫舍|1|https://leetcode-cn.com/problems/house-robber| |
| 191 | +|109. 有序链表转换二叉搜索树|1|https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree| |
| 192 | +|70. 爬楼梯|1|https://leetcode-cn.com/problems/climbing-stairs| |
| 193 | +|面试题 17.24. 最大子矩阵|1|https://leetcode-cn.com/problems/max-submatrix-lcci| |
| 194 | +|268. 缺失数字|1|https://leetcode-cn.com/problems/missing-number| |
| 195 | +|1497. 检查数组对是否可以被 k 整除|1|https://leetcode-cn.com/problems/check-if-array-pairs-are-divisible-by-k| |
| 196 | +|239. 滑动窗口最大值|1|https://leetcode-cn.com/problems/sliding-window-maximum| |
| 197 | +|354. 俄罗斯套娃信封问题|1|https://leetcode-cn.com/problems/russian-doll-envelopes| |
| 198 | +|752. 打开转盘锁|1|https://leetcode-cn.com/problems/open-the-lock| |
| 199 | +|797. 所有可能的路径|1|https://leetcode-cn.com/problems/all-paths-from-source-to-target| |
| 200 | +|222. 完全二叉树的节点个数|1|https://leetcode-cn.com/problems/count-complete-tree-nodes| |
| 201 | +|322. 零钱兑换|1|https://leetcode-cn.com/problems/coin-change| |
| 202 | +|743. 网络延迟时间|1|https://leetcode-cn.com/problems/network-delay-time| |
| 203 | +|199. 二叉树的右视图|1|https://leetcode-cn.com/problems/binary-tree-right-side-view| |
| 204 | +|135. 分发糖果|1|https://leetcode-cn.com/problems/candy| |
| 205 | +|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive| |
| 206 | +|剑指 Offer 15. 二进制中1的个数|1|https://leetcode-cn.com/problems/er-jin-zhi-zhong-1de-ge-shu-lcof| |
| 207 | +|剑指 Offer 22. 链表中倒数第k个节点|1|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof| |