LeetCode面试常考题目

偏执的太偏执、 2022-10-17 10:42 191阅读 0赞

*  原文地址：[LeetCode面试常考题目][LeetCode]
 *  git地址：https://gitee.com/AiShiYuShiJiePingXing/lovebetterworld
 *  [点击前往GIT][GIT]

![image-20210528231208535][]

<table> 
 <thead> 
  <tr> 
   <th><strong>序号</strong></th> 
   <th><strong>题号</strong></th> 
   <th><strong>题目</strong></th> 
   <th><strong>难度</strong></th> 
   <th><strong>频度</strong></th> 
   <th><strong>题解</strong></th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>1</td> 
   <td>206</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-linked-list" rel="nofollow">反转链表</a></td> 
   <td>容易</td> 
   <td>96</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106676536" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>2</td> 
   <td>215</td> 
   <td><a href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array" rel="nofollow">数组中的第K个最大元素</a></td> 
   <td>中等</td> 
   <td>85</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108436611" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>3</td> 
   <td>3</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters" rel="nofollow">无重复字符的最长子串</a></td> 
   <td>中等</td> 
   <td>71</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/107877584" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>4</td> 
   <td>25</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-nodes-in-k-group" rel="nofollow">K 个一组翻转链表</a></td> 
   <td>困难</td> 
   <td>58</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108231000" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>5</td> 
   <td>146</td> 
   <td><a href="https://leetcode-cn.com/problems/lru-cache" rel="nofollow">LRU缓存机制</a></td> 
   <td>中等</td> 
   <td>56</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>6</td> 
   <td>15</td> 
   <td><a href="https://leetcode-cn.com/problems/3sum" rel="nofollow">三数之和</a></td> 
   <td>中等</td> 
   <td>52</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106596357" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>7</td> 
   <td>121</td> 
   <td><a href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock" rel="nofollow">买卖股票的最佳时机</a></td> 
   <td>容易</td> 
   <td>46</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106699551" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>8</td> 
   <td>1</td> 
   <td><a href="https://leetcode-cn.com/problems/two-sum" rel="nofollow">两数之和</a></td> 
   <td>容易</td> 
   <td>44</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106595078" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>9</td> 
   <td>142</td> 
   <td><a href="https://leetcode-cn.com/problems/linked-list-cycle-ii" rel="nofollow">环形链表 II</a></td> 
   <td>中等</td> 
   <td>40</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106699636" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>10</td> 
   <td>94</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-inorder-traversal" rel="nofollow">二叉树的中序遍历</a></td> 
   <td>中等</td> 
   <td>34</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/105973380" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>11</td> 
   <td>102</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal" rel="nofollow">二叉树的层序遍历</a></td> 
   <td>中等</td> 
   <td>34</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106008688" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>12</td> 
   <td>236</td> 
   <td><a href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree" rel="nofollow">二叉树的最近公共祖先</a></td> 
   <td>中等</td> 
   <td>31</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112131073" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>13</td> 
   <td>103</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal" rel="nofollow">二叉树的锯齿形层次遍历</a></td> 
   <td>中等</td> 
   <td>30</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108178427" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>14</td> 
   <td>199</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-right-side-view" rel="nofollow">二叉树的右视图</a></td> 
   <td>中等</td> 
   <td>28</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108448678" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>15</td> 
   <td>415</td> 
   <td><a href="https://leetcode-cn.com/problems/add-strings" rel="nofollow">字符串相加</a></td> 
   <td>容易</td> 
   <td>27</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112131112" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>16</td> 
   <td>160</td> 
   <td><a href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists" rel="nofollow">相交链表</a></td> 
   <td>容易</td> 
   <td>26</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108067127" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>17</td> 
   <td>21</td> 
   <td><a href="https://leetcode-cn.com/problems/merge-two-sorted-lists" rel="nofollow">合并两个有序链表</a></td> 
   <td>容易</td> 
   <td>26</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106650834" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>18</td> 
   <td>200</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-islands" rel="nofollow">岛屿数量</a></td> 
   <td>中等</td> 
   <td>25</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/107501754" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>19</td> 
   <td>20</td> 
   <td><a href="https://leetcode-cn.com/problems/valid-parentheses" rel="nofollow">有效的括号</a></td> 
   <td>容易</td> 
   <td>25</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106726181" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>20</td> 
   <td>53</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-subarray" rel="nofollow">最大子序和</a></td> 
   <td>容易</td> 
   <td>25</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112131118" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>21</td> 
   <td>92</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-linked-list-ii" rel="nofollow">反转链表 II</a></td> 
   <td>中等</td> 
   <td>24</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106677585" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>22</td> 
   <td>141</td> 
   <td><a href="https://leetcode-cn.com/problems/linked-list-cycle" rel="nofollow">环形链表</a></td> 
   <td>容易</td> 
   <td>23</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106699551" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>23</td> 
   <td>543</td> 
   <td><a href="https://leetcode-cn.com/problems/diameter-of-binary-tree" rel="nofollow">二叉树的直径</a></td> 
   <td>容易</td> 
   <td>23</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112134776" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>24</td> 
   <td>104</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree" rel="nofollow">二叉树的最大深度</a></td> 
   <td>容易</td> 
   <td>22</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106009246" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>25</td> 
   <td>69</td> 
   <td><a href="https://leetcode-cn.com/problems/sqrtx" rel="nofollow">x 的平方根</a></td> 
   <td>容易</td> 
   <td>21</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108656803" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>26</td> 
   <td>88</td> 
   <td><a href="https://leetcode-cn.com/problems/merge-sorted-array" rel="nofollow">合并两个有序数组</a></td> 
   <td>容易</td> 
   <td>21</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106595622" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>27</td> 
   <td>110</td> 
   <td><a href="https://leetcode-cn.com/problems/balanced-binary-tree" rel="nofollow">平衡二叉树</a></td> 
   <td>容易</td> 
   <td>21</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/107151605" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>28</td> 
   <td>54</td> 
   <td><a href="https://leetcode-cn.com/problems/spiral-matrix" rel="nofollow">螺旋矩阵</a></td> 
   <td>中等</td> 
   <td>20</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112137715" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>29</td> 
   <td>113</td> 
   <td><a href="https://leetcode-cn.com/problems/path-sum-ii" rel="nofollow">路径总和 II</a></td> 
   <td>中等</td> 
   <td>20</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108458113" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>30</td> 
   <td>98</td> 
   <td><a href="https://leetcode-cn.com/problems/validate-binary-search-tree" rel="nofollow">验证二叉搜索树</a></td> 
   <td>中等</td> 
   <td>20</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106980295" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>31</td> 
   <td>42</td> 
   <td><a href="https://leetcode-cn.com/problems/trapping-rain-water" rel="nofollow">接雨水</a></td> 
   <td>困难</td> 
   <td>20</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112254417" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>32</td> 
   <td>124</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum" rel="nofollow">二叉树中的最大路径和</a></td> 
   <td>困难</td> 
   <td>20</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112255014" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>33</td> 
   <td>105</td> 
   <td><a href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal" rel="nofollow">从前序与中序遍历序列构造二叉树</a></td> 
   <td>中等</td> 
   <td>19</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108176121" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>34</td> 
   <td>151</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-words-in-a-string" rel="nofollow">翻转字符串里的单词</a></td> 
   <td>中等</td> 
   <td>18</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112210308" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>35</td> 
   <td>234</td> 
   <td><a href="https://leetcode-cn.com/problems/palindrome-linked-list" rel="nofollow">回文链表</a></td> 
   <td>容易</td> 
   <td>18</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108040927" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>36</td> 
   <td>33</td> 
   <td><a href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array" rel="nofollow">搜索旋转排序数组</a></td> 
   <td>中等</td> 
   <td>18</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108452058" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>37</td> 
   <td>48</td> 
   <td><a href="https://leetcode-cn.com/problems/rotate-image" rel="nofollow">旋转图像</a></td> 
   <td>中等</td> 
   <td>17</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112446655" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>38</td> 
   <td>剑指 Offer 22</td> 
   <td><a href="https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof" rel="nofollow">链表中倒数第k个节点</a></td> 
   <td>容易</td> 
   <td>16</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113804214" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>39</td> 
   <td>5</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-palindromic-substring" rel="nofollow">最长回文子串</a></td> 
   <td>中等</td> 
   <td>16</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106775026" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>40</td> 
   <td>144</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-preorder-traversal" rel="nofollow">二叉树的前序遍历</a></td> 
   <td>中等</td> 
   <td>16</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/105970362" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>41</td> 
   <td>232</td> 
   <td><a href="https://leetcode-cn.com/problems/implement-queue-using-stacks" rel="nofollow">用栈实现队列</a></td> 
   <td>容易</td> 
   <td>16</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>42</td> 
   <td>240</td> 
   <td><a href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii" rel="nofollow">搜索二维矩阵 II</a></td> 
   <td>中等</td> 
   <td>15</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113804527" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>43</td> 
   <td>23</td> 
   <td><a href="https://leetcode-cn.com/problems/merge-k-sorted-lists" rel="nofollow">合并K个排序链表</a></td> 
   <td>困难</td> 
   <td>15</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108446322" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>44</td> 
   <td>56</td> 
   <td><a href="https://leetcode-cn.com/problems/merge-intervals" rel="nofollow">合并区间</a></td> 
   <td>中等</td> 
   <td>15</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108446322" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>45</td> 
   <td>101</td> 
   <td><a href="https://leetcode-cn.com/problems/symmetric-tree" rel="nofollow">对称二叉树</a></td> 
   <td>容易</td> 
   <td>15</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108091477" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>46</td> 
   <td>2</td> 
   <td><a href="https://leetcode-cn.com/problems/add-two-numbers" rel="nofollow">两数相加</a></td> 
   <td>中等</td> 
   <td>15</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/107872193" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>47</td> 
   <td>剑指 Offer 09</td> 
   <td><a href="https://leetcode-cn.com/problems/yong-liang-ge-zhan-shi-xian-dui-lie-lcof" rel="nofollow">用两个栈实现队列</a></td> 
   <td>容易</td> 
   <td>15</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>48</td> 
   <td>155</td> 
   <td><a href="https://leetcode-cn.com/problems/min-stack" rel="nofollow">最小栈</a></td> 
   <td>容易</td> 
   <td>14</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>49</td> 
   <td>300</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-increasing-subsequence" rel="nofollow">最长上升子序列</a></td> 
   <td>中等</td> 
   <td>14</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113804861" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>50</td> 
   <td>128</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-consecutive-sequence" rel="nofollow">最长连续序列</a></td> 
   <td>困难</td> 
   <td>13</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113962133" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>51</td> 
   <td>46</td> 
   <td><a href="https://leetcode-cn.com/problems/permutations" rel="nofollow">全排列</a></td> 
   <td>中等</td> 
   <td>13</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108549192" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>52</td> 
   <td>70</td> 
   <td><a href="https://leetcode-cn.com/problems/climbing-stairs" rel="nofollow">爬楼梯</a></td> 
   <td>容易</td> 
   <td>13</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113873250" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>53</td> 
   <td>62</td> 
   <td><a href="https://leetcode-cn.com/problems/unique-paths" rel="nofollow">不同路径</a></td> 
   <td>中等</td> 
   <td>13</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113873798" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>54</td> 
   <td>剑指 Offer 21</td> 
   <td><a href="https://leetcode-cn.com/problems/diao-zheng-shu-zu-shun-xu-shi-qi-shu-wei-yu-ou-shu-qian-mian-lcof" rel="nofollow">调整数组顺序使奇数位于偶数前面</a></td> 
   <td>容易</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114108941" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>55</td> 
   <td>93</td> 
   <td><a href="https://leetcode-cn.com/problems/restore-ip-addresses" rel="nofollow">复原IP地址</a></td> 
   <td>中等</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113965009" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>56</td> 
   <td>83</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list" rel="nofollow">删除排序链表中的重复元素</a></td> 
   <td>容易</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106650954" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>57</td> 
   <td>148</td> 
   <td><a href="https://leetcode-cn.com/problems/sort-list" rel="nofollow">排序链表</a></td> 
   <td>中等</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108044466" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>58</td> 
   <td>169</td> 
   <td><a href="https://leetcode-cn.com/problems/majority-element" rel="nofollow">多数元素</a></td> 
   <td>容易</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108230508" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>59</td> 
   <td>958</td> 
   <td><a href="https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree" rel="nofollow">二叉树的完全性检验</a></td> 
   <td>中等</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113964032" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>60</td> 
   <td>41</td> 
   <td><a href="https://leetcode-cn.com/problems/first-missing-positive" rel="nofollow">缺失的第一个正数</a></td> 
   <td>困难</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114178789" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>61</td> 
   <td>4</td> 
   <td><a href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays" rel="nofollow">寻找两个正序数组的中位数</a></td> 
   <td>困难</td> 
   <td>12</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114179481" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>62</td> 
   <td>72</td> 
   <td><a href="https://leetcode-cn.com/problems/edit-distance" rel="nofollow">编辑距离</a></td> 
   <td>困难</td> 
   <td>11</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>63</td> 
   <td>209</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-size-subarray-sum" rel="nofollow">长度最小的子数组</a></td> 
   <td>中等</td> 
   <td>11</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108457712" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>64</td> 
   <td>143</td> 
   <td><a href="https://leetcode-cn.com/problems/reorder-list" rel="nofollow">重排链表</a></td> 
   <td>中等</td> 
   <td>11</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108468070" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>65</td> 
   <td>328</td> 
   <td><a href="https://leetcode-cn.com/problems/odd-even-linked-list" rel="nofollow">奇偶链表</a></td> 
   <td>中等</td> 
   <td>11</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108067365" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>66</td> 
   <td>19</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list" rel="nofollow">删除链表的倒数第N个节点</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/106673376" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>67</td> 
   <td>1143</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-common-subsequence" rel="nofollow">最长公共子序列</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114185057" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>68</td> 
   <td>468</td> 
   <td><a href="https://leetcode-cn.com/problems/validate-ip-address" rel="nofollow">验证IP地址</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>69</td> 
   <td>34</td> 
   <td><a href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array" rel="nofollow">在排序数组中查找元素的第一个和最后一个位置</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108551378" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>70</td> 
   <td>162</td> 
   <td><a href="https://leetcode-cn.com/problems/find-peak-element" rel="nofollow">寻找峰值</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114187295" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>71</td> 
   <td>剑指 Offer 36</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-sou-suo-shu-yu-shuang-xiang-lian-biao-lcof" rel="nofollow">二叉搜索树与双向链表</a></td> 
   <td>中等</td> 
   <td>10</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>72</td> 
   <td>322</td> 
   <td><a href="https://leetcode-cn.com/problems/coin-change" rel="nofollow">零钱兑换</a></td> 
   <td>中等</td> 
   <td>9</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/114189426" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>73</td> 
   <td>394</td> 
   <td><a href="https://leetcode-cn.com/problems/decode-string" rel="nofollow">字符串解码</a></td> 
   <td>中等</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>74</td> 
   <td>22</td> 
   <td><a href="https://leetcode-cn.com/problems/generate-parentheses" rel="nofollow">括号生成</a></td> 
   <td>中等</td> 
   <td>9</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/108305376" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>75</td> 
   <td>662</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-width-of-binary-tree" rel="nofollow">二叉树最大宽度</a></td> 
   <td>中等</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>76</td> 
   <td>24</td> 
   <td><a href="https://leetcode-cn.com/problems/swap-nodes-in-pairs" rel="nofollow">两两交换链表中的节点</a></td> 
   <td>中等</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>77</td> 
   <td>226</td> 
   <td><a href="https://leetcode-cn.com/problems/invert-binary-tree" rel="nofollow">翻转二叉树</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>78</td> 
   <td>704</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-search" rel="nofollow">二分查找</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>79</td> 
   <td>剑指 Offer 24</td> 
   <td><a href="https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof" rel="nofollow">反转链表</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>80</td> 
   <td>122</td> 
   <td><a href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii" rel="nofollow">买卖股票的最佳时机 II</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>81</td> 
   <td>145</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-postorder-traversal" rel="nofollow">二叉树的后序遍历</a></td> 
   <td>困难</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>82</td> 
   <td>189</td> 
   <td><a href="https://leetcode-cn.com/problems/rotate-array" rel="nofollow">旋转数组</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>83</td> 
   <td>剑指 Offer 10 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/qing-wa-tiao-tai-jie-wen-ti-lcof" rel="nofollow">青蛙跳台阶问题</a></td> 
   <td>容易</td> 
   <td>9</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>84</td> 
   <td>86</td> 
   <td><a href="https://leetcode-cn.com/problems/partition-list" rel="nofollow">分隔链表</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112130920" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>85</td> 
   <td>114</td> 
   <td><a href="https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list" rel="nofollow">二叉树展开为链表</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>86</td> 
   <td>198</td> 
   <td><a href="https://leetcode-cn.com/problems/house-robber" rel="nofollow">打家劫舍</a></td> 
   <td>容易</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>87</td> 
   <td>165</td> 
   <td><a href="https://leetcode-cn.com/problems/compare-version-numbers" rel="nofollow">比较版本号</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>88</td> 
   <td>32</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-valid-parentheses" rel="nofollow">最长有效括号</a></td> 
   <td>困难</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>89</td> 
   <td>31</td> 
   <td><a href="https://leetcode-cn.com/problems/next-permutation" rel="nofollow">下一个排列</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>90</td> 
   <td>560</td> 
   <td><a href="https://leetcode-cn.com/problems/subarray-sum-equals-k" rel="nofollow">和为K的子数组</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>91</td> 
   <td>239</td> 
   <td><a href="https://leetcode-cn.com/problems/sliding-window-maximum" rel="nofollow">滑动窗口最大值</a></td> 
   <td>困难</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>92</td> 
   <td>112</td> 
   <td><a href="https://leetcode-cn.com/problems/path-sum" rel="nofollow">路径总和</a></td> 
   <td>容易</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>93</td> 
   <td>78</td> 
   <td><a href="https://leetcode-cn.com/problems/subsets" rel="nofollow">子集</a></td> 
   <td>中等</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>94</td> 
   <td>136</td> 
   <td><a href="https://leetcode-cn.com/problems/single-number" rel="nofollow">只出现一次的数字</a></td> 
   <td>容易</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>95</td> 
   <td>344</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-string" rel="nofollow">反转字符串</a></td> 
   <td>容易</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>96</td> 
   <td>剑指 Offer 52</td> 
   <td><a href="https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof" rel="nofollow">两个链表的第一个公共节点</a></td> 
   <td>容易</td> 
   <td>8</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>97</td> 
   <td>224</td> 
   <td><a href="https://leetcode-cn.com/problems/basic-calculator" rel="nofollow">基本计算器</a></td> 
   <td>困难</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>98</td> 
   <td>76</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-window-substring" rel="nofollow">最小覆盖子串</a></td> 
   <td>困难</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>99</td> 
   <td>82</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii" rel="nofollow">删除排序链表中的重复元素 II</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>100</td> 
   <td>剑指 Offer 51</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof" rel="nofollow">数组中的逆序对</a></td> 
   <td>困难</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>101</td> 
   <td>349</td> 
   <td><a href="https://leetcode-cn.com/problems/intersection-of-two-arrays" rel="nofollow">两个数组的交集</a></td> 
   <td>容易</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>102</td> 
   <td>287</td> 
   <td><a href="https://leetcode-cn.com/problems/find-the-duplicate-number" rel="nofollow">寻找重复数</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>103</td> 
   <td>718</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray" rel="nofollow">最长重复子数组</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>104</td> 
   <td>64</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-path-sum" rel="nofollow">最小路径和</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>105</td> 
   <td>79</td> 
   <td><a href="https://leetcode-cn.com/problems/word-search" rel="nofollow">单词搜索</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>106</td> 
   <td>739</td> 
   <td><a href="https://leetcode-cn.com/problems/daily-temperatures" rel="nofollow">每日温度</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>107</td> 
   <td>470</td> 
   <td><a href="https://leetcode-cn.com/problems/implement-rand10-using-rand7" rel="nofollow">用 Rand7() 实现 Rand10()</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>108</td> 
   <td>518</td> 
   <td><a href="https://leetcode-cn.com/problems/coin-change-2" rel="nofollow">零钱兑换 II</a></td> 
   <td>中等</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>109</td> 
   <td>剑指 Offer 54</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof" rel="nofollow">二叉搜索树的第k大节点</a></td> 
   <td>容易</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>110</td> 
   <td>剑指 Offer 42</td> 
   <td><a href="https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof" rel="nofollow">连续子数组的最大和</a></td> 
   <td>容易</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>111</td> 
   <td>剑指 Offer 27</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-shu-de-jing-xiang-lcof" rel="nofollow">二叉树的镜像</a></td> 
   <td>容易</td> 
   <td>7</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>112</td> 
   <td>91</td> 
   <td><a href="https://leetcode-cn.com/problems/decode-ways" rel="nofollow">解码方法</a></td> 
   <td>中等</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>113</td> 
   <td>129</td> 
   <td><a href="https://leetcode-cn.com/problems/sum-root-to-leaf-numbers" rel="nofollow">求根到叶子节点数字之和</a></td> 
   <td>中等</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>114</td> 
   <td>297</td> 
   <td><a href="https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree" rel="nofollow">二叉树的序列化与反序列化</a></td> 
   <td>困难</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>115</td> 
   <td>460</td> 
   <td><a href="https://leetcode-cn.com/problems/lfu-cache" rel="nofollow">LFU缓存</a></td> 
   <td>困难</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>116</td> 
   <td>242</td> 
   <td><a href="https://leetcode-cn.com/problems/valid-anagram" rel="nofollow">有效的字母异位词</a></td> 
   <td>容易</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>117</td> 
   <td>179</td> 
   <td><a href="https://leetcode-cn.com/problems/largest-number" rel="nofollow">最大数</a></td> 
   <td>中等</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>118</td> 
   <td>剑指 Offer 48</td> 
   <td><a href="https://leetcode-cn.com/problems/zui-chang-bu-han-zhong-fu-zi-fu-de-zi-zi-fu-chuan-lcof" rel="nofollow">最长不含重复字符的子字符串</a></td> 
   <td>中等</td> 
   <td>6</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>119</td> 
   <td>509</td> 
   <td><a href="https://leetcode-cn.com/problems/fibonacci-number" rel="nofollow">斐波那契数</a></td> 
   <td>容易</td> 
   <td>6</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112209242" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>120</td> 
   <td>443</td> 
   <td><a href="https://leetcode-cn.com/problems/string-compression" rel="nofollow">压缩字符串</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>121</td> 
   <td>138</td> 
   <td><a href="https://leetcode-cn.com/problems/copy-list-with-random-pointer" rel="nofollow">复制带随机指针的链表</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>122</td> 
   <td>450</td> 
   <td><a href="https://leetcode-cn.com/problems/delete-node-in-a-bst" rel="nofollow">删除二叉搜索树中的节点</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>123</td> 
   <td>补充题1</td> 
   <td><a href="https://zhuanlan.zhihu.com/p/311113031" rel="nofollow">排序奇升偶降链表</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>124</td> 
   <td>59</td> 
   <td><a href="https://leetcode-cn.com/problems/spiral-matrix-ii" rel="nofollow">螺旋矩阵 II</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/112141555" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>125</td> 
   <td>268</td> 
   <td><a href="https://leetcode-cn.com/problems/missing-number" rel="nofollow">缺失数字</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>126</td> 
   <td>剑指 Offer 61</td> 
   <td><a href="https://leetcode-cn.com/problems/bu-ke-pai-zhong-de-shun-zi-lcof" rel="nofollow">扑克牌中的顺子</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>127</td> 
   <td>39</td> 
   <td><a href="https://leetcode-cn.com/problems/combination-sum" rel="nofollow">组合总和</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>128</td> 
   <td>剑指 Offer 25</td> 
   <td><a href="https://leetcode-cn.com/problems/he-bing-liang-ge-pai-xu-de-lian-biao-lcof" rel="nofollow">合并两个排序的链表</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>129</td> 
   <td>670</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-swap" rel="nofollow">最大交换</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>130</td> 
   <td>557</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-words-in-a-string-iii" rel="nofollow">反转字符串中的单词 III</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>131</td> 
   <td>7</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-integer" rel="nofollow">整数反转</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>132</td> 
   <td>221</td> 
   <td><a href="https://leetcode-cn.com/problems/maximal-square" rel="nofollow">最大正方形</a></td> 
   <td>中等</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>133</td> 
   <td>283</td> 
   <td><a href="https://leetcode-cn.com/problems/move-zeroes" rel="nofollow">移动零</a></td> 
   <td>容易</td> 
   <td>5</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>134</td> 
   <td>207</td> 
   <td><a href="https://leetcode-cn.com/problems/course-schedule" rel="nofollow">课程表</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>135</td> 
   <td>123</td> 
   <td><a href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii" rel="nofollow">买卖股票的最佳时机 III</a></td> 
   <td>困难</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>136</td> 
   <td>剑指 Offer 04</td> 
   <td><a href="https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof" rel="nofollow">二维数组中的查找</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>137</td> 
   <td>384</td> 
   <td><a href="https://leetcode-cn.com/problems/shuffle-an-array" rel="nofollow">打乱数组</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>138</td> 
   <td>528</td> 
   <td><a href="https://leetcode-cn.com/problems/random-pick-with-weight" rel="nofollow">按权重随机选择</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>139</td> 
   <td>230</td> 
   <td><a href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst" rel="nofollow">二叉搜索树中第K小的元素</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>140</td> 
   <td>210</td> 
   <td><a href="https://leetcode-cn.com/problems/course-schedule-ii" rel="nofollow">课程表 II</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>141</td> 
   <td>剑指 Offer 45</td> 
   <td><a href="https://leetcode-cn.com/problems/ba-shu-zu-pai-cheng-zui-xiao-de-shu-lcof" rel="nofollow">把数组排成最小的数</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>142</td> 
   <td>补充题2</td> 
   <td><a href="https://zhuanlan.zhihu.com/p/338806463" rel="nofollow">圆环回原点问题</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>143</td> 
   <td>862</td> 
   <td><a href="https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k" rel="nofollow">和至少为 K 的最短子数组</a></td> 
   <td>困难</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>144</td> 
   <td>26</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array" rel="nofollow">删除排序数组中的重复项</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>145</td> 
   <td>329</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix" rel="nofollow">矩阵中的最长递增路径</a></td> 
   <td>困难</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>146</td> 
   <td>1047</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string" rel="nofollow">删除字符串中的所有相邻重复项</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>147</td> 
   <td>986</td> 
   <td><a href="https://leetcode-cn.com/problems/interval-list-intersections" rel="nofollow">区间列表的交集</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>148</td> 
   <td>71</td> 
   <td><a href="https://leetcode-cn.com/problems/simplify-path" rel="nofollow">简化路径</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>149</td> 
   <td>55</td> 
   <td><a href="https://leetcode-cn.com/problems/jump-game" rel="nofollow">跳跃游戏</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>150</td> 
   <td>剑指 Offer 18</td> 
   <td><a href="https://leetcode-cn.com/problems/shan-chu-lian-biao-de-jie-dian-lcof" rel="nofollow">删除链表的节点</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>151</td> 
   <td>498</td> 
   <td><a href="https://leetcode-cn.com/problems/diagonal-traverse" rel="nofollow">对角线遍历</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>152</td> 
   <td>225</td> 
   <td><a href="https://leetcode-cn.com/problems/implement-stack-using-queues" rel="nofollow">用队列实现栈</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>153</td> 
   <td>445</td> 
   <td><a href="https://leetcode-cn.com/problems/add-two-numbers-ii" rel="nofollow">两数相加 II</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>154</td> 
   <td>306</td> 
   <td><a href="https://leetcode-cn.com/problems/additive-number" rel="nofollow">累加数</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>155</td> 
   <td>44</td> 
   <td><a href="https://leetcode-cn.com/problems/wildcard-matching" rel="nofollow">通配符匹配</a></td> 
   <td>困难</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>156</td> 
   <td>208</td> 
   <td><a href="https://leetcode-cn.com/problems/implement-trie-prefix-tree" rel="nofollow">实现 Trie (前缀树)</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>157</td> 
   <td>43</td> 
   <td><a href="https://leetcode-cn.com/problems/multiply-strings" rel="nofollow">字符串相乘</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>158</td> 
   <td>572</td> 
   <td><a href="https://leetcode-cn.com/problems/subtree-of-another-tree" rel="nofollow">另一个树的子树</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>159</td> 
   <td>876</td> 
   <td><a href="https://leetcode-cn.com/problems/middle-of-the-linked-list" rel="nofollow">链表的中间结点</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>160</td> 
   <td>剑指 Offer 32 - III</td> 
   <td><a href="https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof" rel="nofollow">从上到下打印二叉树 III</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>161</td> 
   <td>426</td> 
   <td><a href="https://leetcode-cn.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list" rel="nofollow">将二叉搜索树转化为排序的双向链表</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>162</td> 
   <td>剑指 Offer 39</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-zu-zhong-chu-xian-ci-shu-chao-guo-yi-ban-de-shu-zi-lcof" rel="nofollow">数组中出现次数超过一半的数字</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>163</td> 
   <td>222</td> 
   <td><a href="https://leetcode-cn.com/problems/count-complete-tree-nodes" rel="nofollow">完全二叉树的节点个数</a></td> 
   <td>中等</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>164</td> 
   <td>108</td> 
   <td><a href="https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree" rel="nofollow">将有序数组转换为二叉搜索树</a></td> 
   <td>容易</td> 
   <td>4</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>165</td> 
   <td>257</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-paths" rel="nofollow">二叉树的所有路径</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>166</td> 
   <td>剑指 Offer 34</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-shu-zhong-he-wei-mou-yi-zhi-de-lu-jing-lcof" rel="nofollow">二叉树中和为某一值的路径</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>167</td> 
   <td>50</td> 
   <td><a href="https://leetcode-cn.com/problems/powx-n" rel="nofollow">Pow(x, n)</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>168</td> 
   <td>459</td> 
   <td><a href="https://leetcode-cn.com/problems/repeated-substring-pattern" rel="nofollow">重复的子字符串</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>169</td> 
   <td>37</td> 
   <td><a href="https://leetcode-cn.com/problems/sudoku-solver" rel="nofollow">解数独</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>170</td> 
   <td>97</td> 
   <td><a href="https://leetcode-cn.com/problems/interleaving-string" rel="nofollow">交错字符串</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>171</td> 
   <td>120</td> 
   <td><a href="https://leetcode-cn.com/problems/triangle" rel="nofollow">三角形最小路径和</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>172</td> 
   <td>1095</td> 
   <td><a href="https://leetcode-cn.com/problems/find-in-mountain-array" rel="nofollow">山脉数组中查找目标值</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>173</td> 
   <td>154</td> 
   <td><a href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii" rel="nofollow">寻找旋转排序数组中的最小值 II</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>174</td> 
   <td>315</td> 
   <td><a href="https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self" rel="nofollow">计算右侧小于当前元素的个数</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>175</td> 
   <td>14</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-common-prefix" rel="nofollow">最长公共前缀</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>176</td> 
   <td>264</td> 
   <td><a href="https://leetcode-cn.com/problems/ugly-number-ii" rel="nofollow">丑数 II</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>177</td> 
   <td>125</td> 
   <td><a href="https://leetcode-cn.com/problems/valid-palindrome" rel="nofollow">验证回文串</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>178</td> 
   <td>340</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters" rel="nofollow">至多包含 K 个不同字符的最长子串</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>179</td> 
   <td>191</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-1-bits" rel="nofollow">位1的个数</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>180</td> 
   <td>49</td> 
   <td><a href="https://leetcode-cn.com/problems/group-anagrams" rel="nofollow">字母异位词分组</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>181</td> 
   <td>402</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-k-digits" rel="nofollow">移掉K位数字</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>182</td> 
   <td>814</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-pruning" rel="nofollow">二叉树剪枝</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>183</td> 
   <td>530</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst" rel="nofollow">二叉搜索树的最小绝对差</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>184</td> 
   <td>701</td> 
   <td><a href="https://leetcode-cn.com/problems/insert-into-a-binary-search-tree" rel="nofollow">二叉搜索树中的插入操作</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>185</td> 
   <td>695</td> 
   <td><a href="https://leetcode-cn.com/problems/max-area-of-island" rel="nofollow">岛屿的最大面积</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>186</td> 
   <td>99</td> 
   <td><a href="https://leetcode-cn.com/problems/recover-binary-search-tree" rel="nofollow">恢复二叉搜索树</a></td> 
   <td>困难</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>187</td> 
   <td>152</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-product-subarray" rel="nofollow">乘积最大子数组</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>188</td> 
   <td>503</td> 
   <td><a href="https://leetcode-cn.com/problems/next-greater-element-ii" rel="nofollow">下一个更大元素 II</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>189</td> 
   <td>剑指 Offer 53 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/que-shi-de-shu-zi-lcof" rel="nofollow">0～n-1中缺失的数字</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>190</td> 
   <td>40</td> 
   <td><a href="https://leetcode-cn.com/problems/combination-sum-ii" rel="nofollow">组合总和 II</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>191</td> 
   <td>16</td> 
   <td><a href="https://leetcode-cn.com/problems/3sum-closest" rel="nofollow">最接近的三数之和</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>192</td> 
   <td>449</td> 
   <td><a href="https://leetcode-cn.com/problems/serialize-and-deserialize-bst" rel="nofollow">序列化和反序列化二叉搜索树</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>193</td> 
   <td>139</td> 
   <td><a href="https://leetcode-cn.com/problems/word-break" rel="nofollow">单词拆分</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>194</td> 
   <td>9</td> 
   <td><a href="https://leetcode-cn.com/problems/palindrome-number" rel="nofollow">回文数</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>195</td> 
   <td>剑指 Offer 11</td> 
   <td><a href="https://leetcode-cn.com/problems/xuan-zhuan-shu-zu-de-zui-xiao-shu-zi-lcof" rel="nofollow">旋转数组的最小数字</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>196</td> 
   <td>100</td> 
   <td><a href="https://leetcode-cn.com/problems/same-tree" rel="nofollow">相同的树</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>197</td> 
   <td>剑指 Offer 29</td> 
   <td><a href="https://leetcode-cn.com/problems/shun-shi-zhen-da-yin-ju-zhen-lcof" rel="nofollow">顺时针打印矩阵</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>198</td> 
   <td>剑指 Offer 10 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/fei-bo-na-qi-shu-lie-lcof" rel="nofollow">斐波那契数列</a></td> 
   <td>容易</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>199</td> 
   <td>47</td> 
   <td><a href="https://leetcode-cn.com/problems/permutations-ii" rel="nofollow">全排列 II</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>200</td> 
   <td>74</td> 
   <td><a href="https://leetcode-cn.com/problems/search-a-2d-matrix" rel="nofollow">搜索二维矩阵</a></td> 
   <td>中等</td> 
   <td>3</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>201</td> 
   <td>295</td> 
   <td><a href="https://leetcode-cn.com/problems/find-median-from-data-stream" rel="nofollow">数据流的中位数</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>202</td> 
   <td>404</td> 
   <td><a href="https://leetcode-cn.com/problems/sum-of-left-leaves" rel="nofollow">左叶子之和</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>203</td> 
   <td>362</td> 
   <td><a href="https://leetcode-cn.com/problems/design-hit-counter" rel="nofollow">敲击计数器</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>204</td> 
   <td>63</td> 
   <td><a href="https://leetcode-cn.com/problems/unique-paths-ii" rel="nofollow">不同路径 II</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td><a href="https://cuggz.blog.csdn.net/article/details/113874084" rel="nofollow">题解</a></td> 
  </tr> 
  <tr> 
   <td>205</td> 
   <td>668</td> 
   <td><a href="https://leetcode-cn.com/problems/kth-smallest-number-in-multiplication-table" rel="nofollow">乘法表中第k小的数</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>206</td> 
   <td>692</td> 
   <td><a href="https://leetcode-cn.com/problems/top-k-frequent-words" rel="nofollow">前K个高频单词</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>207</td> 
   <td>617</td> 
   <td><a href="https://leetcode-cn.com/problems/merge-two-binary-trees" rel="nofollow">合并二叉树</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>208</td> 
   <td>119</td> 
   <td><a href="https://leetcode-cn.com/problems/pascals-triangle-ii" rel="nofollow">杨辉三角 II</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>209</td> 
   <td>863</td> 
   <td><a href="https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree" rel="nofollow">二叉树中所有距离为 K 的结点</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>210</td> 
   <td>面试题 03.05</td> 
   <td><a href="https://leetcode-cn.com/problems/sort-of-stacks-lcci" rel="nofollow">栈排序</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>211</td> 
   <td>67</td> 
   <td><a href="https://leetcode-cn.com/problems/add-binary" rel="nofollow">二进制求和</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>212</td> 
   <td>680</td> 
   <td><a href="https://leetcode-cn.com/problems/valid-palindrome-ii" rel="nofollow">验证回文字符串 Ⅱ</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>213</td> 
   <td>1363</td> 
   <td><a href="https://leetcode-cn.com/problems/largest-multiple-of-three" rel="nofollow">形成三的最大倍数</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>214</td> 
   <td>438</td> 
   <td><a href="https://leetcode-cn.com/problems/find-all-anagrams-in-a-string" rel="nofollow">找到字符串中所有字母异位词</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>215</td> 
   <td>147</td> 
   <td><a href="https://leetcode-cn.com/problems/insertion-sort-list" rel="nofollow">对链表进行插入排序</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>216</td> 
   <td>188</td> 
   <td><a href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv" rel="nofollow">买卖股票的最佳时机 IV</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>217</td> 
   <td>321</td> 
   <td><a href="https://leetcode-cn.com/problems/create-maximum-number" rel="nofollow">拼接最大数</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>218</td> 
   <td>785</td> 
   <td><a href="https://leetcode-cn.com/problems/is-graph-bipartite" rel="nofollow">判断二分图</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>219</td> 
   <td>722</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-comments" rel="nofollow">删除注释</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>220</td> 
   <td>109</td> 
   <td><a href="https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree" rel="nofollow">有序链表转换二叉搜索树</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>221</td> 
   <td>694</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-distinct-islands" rel="nofollow">不同岛屿的数量</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>222</td> 
   <td>238</td> 
   <td><a href="https://leetcode-cn.com/problems/product-of-array-except-self" rel="nofollow">除自身以外数组的乘积</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>223</td> 
   <td>85</td> 
   <td><a href="https://leetcode-cn.com/problems/maximal-rectangle" rel="nofollow">最大矩形</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>224</td> 
   <td>60</td> 
   <td><a href="https://leetcode-cn.com/problems/permutation-sequence" rel="nofollow">第k个排列</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>225</td> 
   <td>134</td> 
   <td><a href="https://leetcode-cn.com/problems/gas-station" rel="nofollow">加油站</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>226</td> 
   <td>204</td> 
   <td><a href="https://leetcode-cn.com/problems/count-primes" rel="nofollow">计数质数</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>227</td> 
   <td>剑指 Offer 19</td> 
   <td><a href="https://leetcode-cn.com/problems/zheng-ze-biao-da-shi-pi-pei-lcof" rel="nofollow">正则表达式匹配</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>228</td> 
   <td>386</td> 
   <td><a href="https://leetcode-cn.com/problems/lexicographical-numbers" rel="nofollow">字典序排数</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>229</td> 
   <td>1026</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-difference-between-node-and-ancestor" rel="nofollow">节点与其祖先之间的最大差值</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>230</td> 
   <td>135</td> 
   <td><a href="https://leetcode-cn.com/problems/candy" rel="nofollow">分发糖果</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>231</td> 
   <td>437</td> 
   <td><a href="https://leetcode-cn.com/problems/path-sum-iii" rel="nofollow">路径总和 III</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>232</td> 
   <td>398</td> 
   <td><a href="https://leetcode-cn.com/problems/random-pick-index" rel="nofollow">随机数索引</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>233</td> 
   <td>516</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-palindromic-subsequence" rel="nofollow">最长回文子序列</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>234</td> 
   <td>173</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-search-tree-iterator" rel="nofollow">二叉搜索树迭代器</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>235</td> 
   <td>45</td> 
   <td><a href="https://leetcode-cn.com/problems/jump-game-ii" rel="nofollow">跳跃游戏 II</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>236</td> 
   <td>164</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-gap" rel="nofollow">最大间距</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>237</td> 
   <td>130</td> 
   <td><a href="https://leetcode-cn.com/problems/surrounded-regions" rel="nofollow">被围绕的区域</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>238</td> 
   <td>剑指 Offer 58 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/fan-zhuan-dan-ci-shun-xu-lcof" rel="nofollow">翻转单词顺序</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>239</td> 
   <td>416</td> 
   <td><a href="https://leetcode-cn.com/problems/partition-equal-subset-sum" rel="nofollow">分割等和子集</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>240</td> 
   <td>540</td> 
   <td><a href="https://leetcode-cn.com/problems/single-element-in-a-sorted-array" rel="nofollow">有序数组中的单一元素</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>241</td> 
   <td>235</td> 
   <td><a href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree" rel="nofollow">二叉搜索树的最近公共祖先</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>242</td> 
   <td>剑指 Offer 46</td> 
   <td><a href="https://leetcode-cn.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof" rel="nofollow">把数字翻译成字符串</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>243</td> 
   <td>347</td> 
   <td><a href="https://leetcode-cn.com/problems/top-k-frequent-elements" rel="nofollow">前 K 个高频元素</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>244</td> 
   <td>387</td> 
   <td><a href="https://leetcode-cn.com/problems/first-unique-character-in-a-string" rel="nofollow">字符串中的第一个唯一字符</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>245</td> 
   <td>977</td> 
   <td><a href="https://leetcode-cn.com/problems/squares-of-a-sorted-array" rel="nofollow">有序数组的平方</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>246</td> 
   <td>767</td> 
   <td><a href="https://leetcode-cn.com/problems/reorganize-string" rel="nofollow">重构字符串</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>247</td> 
   <td>887</td> 
   <td><a href="https://leetcode-cn.com/problems/super-egg-drop" rel="nofollow">鸡蛋掉落</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>248</td> 
   <td>剑指 Offer 40</td> 
   <td><a href="https://leetcode-cn.com/problems/zui-xiao-de-kge-shu-lcof" rel="nofollow">最小的k个数</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>249</td> 
   <td>111</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-depth-of-binary-tree" rel="nofollow">二叉树的最小深度</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>250</td> 
   <td>153</td> 
   <td><a href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array" rel="nofollow">寻找旋转排序数组中的最小值</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>251</td> 
   <td>168</td> 
   <td><a href="https://leetcode-cn.com/problems/excel-sheet-column-title" rel="nofollow">Excel表列名称</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>252</td> 
   <td>61</td> 
   <td><a href="https://leetcode-cn.com/problems/rotate-list" rel="nofollow">旋转链表</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>253</td> 
   <td>1156</td> 
   <td><a href="https://leetcode-cn.com/problems/swap-for-longest-repeated-character-substring" rel="nofollow">单字符重复子串的最大长度</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>254</td> 
   <td>628</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-product-of-three-numbers" rel="nofollow">三个数的最大乘积</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>255</td> 
   <td>674</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence" rel="nofollow">最长连续递增序列</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>256</td> 
   <td>1254</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-closed-islands" rel="nofollow">统计封闭岛屿的数目</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>257</td> 
   <td>剑指 Offer 12</td> 
   <td><a href="https://leetcode-cn.com/problems/ju-zhen-zhong-de-lu-jing-lcof" rel="nofollow">矩阵中的路径</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>258</td> 
   <td>8</td> 
   <td><a href="https://leetcode-cn.com/problems/string-to-integer-atoi" rel="nofollow">字符串转换整数 (atoi)</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>259</td> 
   <td>350</td> 
   <td><a href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii" rel="nofollow">两个数组的交集 II</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>260</td> 
   <td>剑指 Offer 33</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-hou-xu-bian-li-xu-lie-lcof" rel="nofollow">二叉搜索树的后序遍历序列</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>261</td> 
   <td>1201</td> 
   <td><a href="https://leetcode-cn.com/problems/ugly-number-iii" rel="nofollow">丑数 III</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>262</td> 
   <td>190</td> 
   <td><a href="https://leetcode-cn.com/problems/reverse-bits" rel="nofollow">颠倒二进制位</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>263</td> 
   <td>137</td> 
   <td><a href="https://leetcode-cn.com/problems/single-number-ii" rel="nofollow">只出现一次的数字 II</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>264</td> 
   <td>150</td> 
   <td><a href="https://leetcode-cn.com/problems/evaluate-reverse-polish-notation" rel="nofollow">逆波兰表达式求值</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>265</td> 
   <td>1312</td> 
   <td><a href="https://leetcode-cn.com/problems/minimum-insertion-steps-to-make-a-string-palindrome" rel="nofollow">让字符串成为回文串的最少插入次数</a></td> 
   <td>困难</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>266</td> 
   <td>剑指 Offer 55 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-shu-de-shen-du-lcof" rel="nofollow">二叉树的深度</a></td> 
   <td>容易</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>267</td> 
   <td>89</td> 
   <td><a href="https://leetcode-cn.com/problems/gray-code" rel="nofollow">格雷编码</a></td> 
   <td>中等</td> 
   <td>2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>268</td> 
   <td>407</td> 
   <td><a href="https://leetcode-cn.com/problems/trapping-rain-water-ii" rel="nofollow">接雨水 II</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>269</td> 
   <td>334</td> 
   <td><a href="https://leetcode-cn.com/problems/increasing-triplet-subsequence" rel="nofollow">递增的三元子序列</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>270</td> 
   <td>面试题 01.06</td> 
   <td><a href="https://leetcode-cn.com/problems/compress-string-lcci" rel="nofollow">字符串压缩</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>271</td> 
   <td>877</td> 
   <td><a href="https://leetcode-cn.com/problems/stone-game" rel="nofollow">石子游戏</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>272</td> 
   <td>569</td> 
   <td><a href="https://leetcode-cn.com/problems/median-employee-salary" rel="nofollow">员工薪水中位数</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>273</td> 
   <td>848</td> 
   <td><a href="https://leetcode-cn.com/problems/shifting-letters" rel="nofollow">字母移位</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>274</td> 
   <td>713</td> 
   <td><a href="https://leetcode-cn.com/problems/subarray-product-less-than-k" rel="nofollow">乘积小于K的子数组</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>275</td> 
   <td>75</td> 
   <td><a href="https://leetcode-cn.com/problems/sort-colors" rel="nofollow">颜色分类</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>276</td> 
   <td>77</td> 
   <td><a href="https://leetcode-cn.com/problems/combinations" rel="nofollow">组合</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>277</td> 
   <td>984</td> 
   <td><a href="https://leetcode-cn.com/problems/string-without-aaa-or-bbb" rel="nofollow">不含 AAA 或 BBB 的字符串</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>278</td> 
   <td>1498</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition" rel="nofollow">满足条件的子序列数目</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>279</td> 
   <td>376</td> 
   <td><a href="https://leetcode-cn.com/problems/wiggle-subsequence" rel="nofollow">摆动序列</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>280</td> 
   <td>213</td> 
   <td><a href="https://leetcode-cn.com/problems/house-robber-ii" rel="nofollow">打家劫舍 II</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>281</td> 
   <td>剑指 Offer 28</td> 
   <td><a href="https://leetcode-cn.com/problems/dui-cheng-de-er-cha-shu-lcof" rel="nofollow">对称的二叉树</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>282</td> 
   <td>525</td> 
   <td><a href="https://leetcode-cn.com/problems/contiguous-array" rel="nofollow">连续数组</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>283</td> 
   <td>1314</td> 
   <td><a href="https://leetcode-cn.com/problems/matrix-block-sum" rel="nofollow">矩阵区域和</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>284</td> 
   <td>440</td> 
   <td><a href="https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order" rel="nofollow">字典序的第K小数字</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>285</td> 
   <td>1155</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-dice-rolls-with-target-sum" rel="nofollow">掷骰子的N种方法</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>286</td> 
   <td>260</td> 
   <td><a href="https://leetcode-cn.com/problems/single-number-iii" rel="nofollow">只出现一次的数字 III</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>287</td> 
   <td>剑指 Offer 59 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/dui-lie-de-zui-da-zhi-lcof" rel="nofollow">队列的最大值</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>288</td> 
   <td>面试题 02.01</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-duplicate-node-lcci" rel="nofollow">移除重复节点</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>289</td> 
   <td>剑指 Offer 58 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/zuo-xuan-zhuan-zi-fu-chuan-lcof" rel="nofollow">左旋转字符串</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>290</td> 
   <td>895</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-frequency-stack" rel="nofollow">最大频率栈</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>291</td> 
   <td>17</td> 
   <td><a href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number" rel="nofollow">电话号码的字母组合</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>292</td> 
   <td>325</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k" rel="nofollow">和等于 k 的最长子数组长度</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>293</td> 
   <td>面试题 17.14</td> 
   <td><a href="https://leetcode-cn.com/problems/smallest-k-lcci" rel="nofollow">最小K个数</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>294</td> 
   <td>343</td> 
   <td><a href="https://leetcode-cn.com/problems/integer-break" rel="nofollow">整数拆分</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>295</td> 
   <td>202</td> 
   <td><a href="https://leetcode-cn.com/problems/happy-number" rel="nofollow">快乐数</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>296</td> 
   <td>1233</td> 
   <td><a href="https://leetcode-cn.com/problems/remove-sub-folders-from-the-filesystem" rel="nofollow">删除子文件夹</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>297</td> 
   <td>435</td> 
   <td><a href="https://leetcode-cn.com/problems/non-overlapping-intervals" rel="nofollow">无重叠区间</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>298</td> 
   <td>951</td> 
   <td><a href="https://leetcode-cn.com/problems/flip-equivalent-binary-trees" rel="nofollow">翻转等价二叉树</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>299</td> 
   <td>107</td> 
   <td><a href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii" rel="nofollow">二叉树的层次遍历 II</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>300</td> 
   <td>865</td> 
   <td><a href="https://leetcode-cn.com/problems/smallest-subtree-with-all-the-deepest-nodes" rel="nofollow">具有所有最深结点的最小子树</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>301</td> 
   <td>1139</td> 
   <td><a href="https://leetcode-cn.com/problems/largest-1-bordered-square" rel="nofollow">最大的以 1 为边界的正方形</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>302</td> 
   <td>400</td> 
   <td><a href="https://leetcode-cn.com/problems/nth-digit" rel="nofollow">第N个数字</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>303</td> 
   <td>1235</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-profit-in-job-scheduling" rel="nofollow">规划兼职工作</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>304</td> 
   <td>369</td> 
   <td><a href="https://leetcode-cn.com/problems/plus-one-linked-list" rel="nofollow">给单链表加一</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>305</td> 
   <td>52</td> 
   <td><a href="https://leetcode-cn.com/problems/n-queens-ii" rel="nofollow">N皇后 II</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>306</td> 
   <td>305</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-islands-ii" rel="nofollow">岛屿数量 II</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>307</td> 
   <td>409</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-palindrome" rel="nofollow">最长回文串</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>308</td> 
   <td>面试题 02.07</td> 
   <td><a href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists-lcci" rel="nofollow">链表相交</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>309</td> 
   <td>172</td> 
   <td><a href="https://leetcode-cn.com/problems/factorial-trailing-zeroes" rel="nofollow">阶乘后的零</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>310</td> 
   <td>912</td> 
   <td><a href="https://leetcode-cn.com/problems/sort-an-array" rel="nofollow">排序数组</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>311</td> 
   <td>637</td> 
   <td><a href="https://leetcode-cn.com/problems/average-of-levels-in-binary-tree" rel="nofollow">二叉树的层平均值</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>312</td> 
   <td>424</td> 
   <td><a href="https://leetcode-cn.com/problems/longest-repeating-character-replacement" rel="nofollow">替换后的最长重复字符</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>313</td> 
   <td>582</td> 
   <td><a href="https://leetcode-cn.com/problems/kill-process" rel="nofollow">杀死进程</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>314</td> 
   <td>622</td> 
   <td><a href="https://leetcode-cn.com/problems/design-circular-queue" rel="nofollow">设计循环队列</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>315</td> 
   <td>73</td> 
   <td><a href="https://leetcode-cn.com/problems/set-matrix-zeroes" rel="nofollow">矩阵置零</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>316</td> 
   <td>688</td> 
   <td><a href="https://leetcode-cn.com/problems/knight-probability-in-chessboard" rel="nofollow">“马”在棋盘上的概率</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>317</td> 
   <td>773</td> 
   <td><a href="https://leetcode-cn.com/problems/sliding-puzzle" rel="nofollow">滑动谜题</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>318</td> 
   <td>827</td> 
   <td><a href="https://leetcode-cn.com/problems/making-a-large-island" rel="nofollow">最大人工岛</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>319</td> 
   <td>673</td> 
   <td><a href="https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence" rel="nofollow">最长递增子序列的个数</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>320</td> 
   <td>915</td> 
   <td><a href="https://leetcode-cn.com/problems/partition-array-into-disjoint-intervals" rel="nofollow">分割数组</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>321</td> 
   <td>1339</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-product-of-splitted-binary-tree" rel="nofollow">分裂二叉树的最大乘积</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>322</td> 
   <td>剑指 Offer 13</td> 
   <td><a href="https://leetcode-cn.com/problems/ji-qi-ren-de-yun-dong-fan-wei-lcof" rel="nofollow">机器人的运动范围</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>323</td> 
   <td>227</td> 
   <td><a href="https://leetcode-cn.com/problems/basic-calculator-ii" rel="nofollow">基本计算器 II</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>324</td> 
   <td>277</td> 
   <td><a href="https://leetcode-cn.com/problems/find-the-celebrity" rel="nofollow">搜寻名人</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>325</td> 
   <td>807</td> 
   <td><a href="https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline" rel="nofollow">保持城市天际线</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>326</td> 
   <td>6</td> 
   <td><a href="https://leetcode-cn.com/problems/zigzag-conversion" rel="nofollow">Z 字形变换</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>327</td> 
   <td>456</td> 
   <td><a href="https://leetcode-cn.com/problems/132-pattern" rel="nofollow">132模式</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>328</td> 
   <td>559</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-depth-of-n-ary-tree" rel="nofollow">N叉树的最大深度</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>329</td> 
   <td>217</td> 
   <td><a href="https://leetcode-cn.com/problems/contains-duplicate" rel="nofollow">存在重复元素</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>330</td> 
   <td>剑指 Offer 56 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof" rel="nofollow">数组中数字出现的次数 II</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>331</td> 
   <td>剑指 Offer 68 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof" rel="nofollow">二叉树的最近公共祖先</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>332</td> 
   <td>410</td> 
   <td><a href="https://leetcode-cn.com/problems/split-array-largest-sum" rel="nofollow">分割数组的最大值</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>333</td> 
   <td>面试题 08.12</td> 
   <td><a href="https://leetcode-cn.com/problems/eight-queens-lcci" rel="nofollow">八皇后</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>334</td> 
   <td>剑指 Offer 59 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/hua-dong-chuang-kou-de-zui-da-zhi-lcof" rel="nofollow">滑动窗口的最大值</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>335</td> 
   <td>剑指 Offer 14 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/jian-sheng-zi-lcof" rel="nofollow">剪绳子</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>336</td> 
   <td>421</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array" rel="nofollow">数组中两个数的最大异或值</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>337</td> 
   <td>255</td> 
   <td><a href="https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree" rel="nofollow">验证前序遍历序列二叉搜索树</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>338</td> 
   <td>1245</td> 
   <td><a href="https://leetcode-cn.com/problems/tree-diameter" rel="nofollow">树的直径</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>339</td> 
   <td>剑指 Offer 67</td> 
   <td><a href="https://leetcode-cn.com/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof" rel="nofollow">把字符串转换成整数</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>340</td> 
   <td>剑指 Offer 38</td> 
   <td><a href="https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof" rel="nofollow">字符串的排列</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>341</td> 
   <td>1339</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-product-of-splitted-binary-tree" rel="nofollow">分裂二叉树的最大乘积</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>342</td> 
   <td>剑指 Offer 13</td> 
   <td><a href="https://leetcode-cn.com/problems/ji-qi-ren-de-yun-dong-fan-wei-lcof" rel="nofollow">机器人的运动范围</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>343</td> 
   <td>227</td> 
   <td><a href="https://leetcode-cn.com/problems/basic-calculator-ii" rel="nofollow">基本计算器 II</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>344</td> 
   <td>277</td> 
   <td><a href="https://leetcode-cn.com/problems/find-the-celebrity" rel="nofollow">搜寻名人</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>345</td> 
   <td>807</td> 
   <td><a href="https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline" rel="nofollow">保持城市天际线</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>346</td> 
   <td>6</td> 
   <td><a href="https://leetcode-cn.com/problems/zigzag-conversion" rel="nofollow">Z 字形变换</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>347</td> 
   <td>456</td> 
   <td><a href="https://leetcode-cn.com/problems/132-pattern" rel="nofollow">132模式</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>348</td> 
   <td>559</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-depth-of-n-ary-tree" rel="nofollow">N叉树的最大深度</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>349</td> 
   <td>217</td> 
   <td><a href="https://leetcode-cn.com/problems/contains-duplicate" rel="nofollow">存在重复元素</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>350</td> 
   <td>剑指 Offer 56 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-zu-zhong-shu-zi-chu-xian-de-ci-shu-ii-lcof" rel="nofollow">数组中数字出现的次数 II</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>351</td> 
   <td>剑指 Offer 68 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/er-cha-shu-de-zui-jin-gong-gong-zu-xian-lcof" rel="nofollow">二叉树的最近公共祖先</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>352</td> 
   <td>410</td> 
   <td><a href="https://leetcode-cn.com/problems/split-array-largest-sum" rel="nofollow">分割数组的最大值</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>353</td> 
   <td>面试题 08.12</td> 
   <td><a href="https://leetcode-cn.com/problems/eight-queens-lcci" rel="nofollow">八皇后</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>354</td> 
   <td>剑指 Offer 59 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/hua-dong-chuang-kou-de-zui-da-zhi-lcof" rel="nofollow">滑动窗口的最大值</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>355</td> 
   <td>剑指 Offer 14 - I</td> 
   <td><a href="https://leetcode-cn.com/problems/jian-sheng-zi-lcof" rel="nofollow">剪绳子</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>356</td> 
   <td>421</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array" rel="nofollow">数组中两个数的最大异或值</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>357</td> 
   <td>255</td> 
   <td><a href="https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree" rel="nofollow">验证前序遍历序列二叉搜索树</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>358</td> 
   <td>1245</td> 
   <td><a href="https://leetcode-cn.com/problems/tree-diameter" rel="nofollow">树的直径</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>359</td> 
   <td>剑指 Offer 38</td> 
   <td><a href="https://leetcode-cn.com/problems/zi-fu-chuan-de-pai-lie-lcof" rel="nofollow">字符串的排列</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>360</td> 
   <td>剑指 Offer 67</td> 
   <td><a href="https://leetcode-cn.com/problems/ba-zi-fu-chuan-zhuan-huan-cheng-zheng-shu-lcof" rel="nofollow">把字符串转换成整数</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>361</td> 
   <td>51</td> 
   <td><a href="https://leetcode-cn.com/problems/n-queens" rel="nofollow">N皇后</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>362</td> 
   <td>994</td> 
   <td><a href="https://leetcode-cn.com/problems/rotting-oranges" rel="nofollow">腐烂的橘子</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>363</td> 
   <td>剑指 Offer 41</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-ju-liu-zhong-de-zhong-wei-shu-lcof" rel="nofollow">数据流中的中位数</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>364</td> 
   <td>剑指 Offer 55 - II</td> 
   <td><a href="https://leetcode-cn.com/problems/ping-heng-er-cha-shu-lcof" rel="nofollow">平衡二叉树</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>365</td> 
   <td>140</td> 
   <td><a href="https://leetcode-cn.com/problems/word-break-ii" rel="nofollow">单词拆分 II</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>366</td> 
   <td>405</td> 
   <td><a href="https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal" rel="nofollow">数字转换为十六进制数</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>367</td> 
   <td>480</td> 
   <td><a href="https://leetcode-cn.com/problems/sliding-window-median" rel="nofollow">滑动窗口中位数</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>368</td> 
   <td>515</td> 
   <td><a href="https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row" rel="nofollow">在每个树行中找最大值</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>369</td> 
   <td>636</td> 
   <td><a href="https://leetcode-cn.com/problems/exclusive-time-of-functions" rel="nofollow">函数的独占时间</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>370</td> 
   <td>1299</td> 
   <td><a href="https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side" rel="nofollow">将每个元素替换为右侧最大元素</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>371</td> 
   <td>11</td> 
   <td><a href="https://leetcode-cn.com/problems/container-with-most-water" rel="nofollow">盛最多水的容器</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>372</td> 
   <td>220</td> 
   <td><a href="https://leetcode-cn.com/problems/contains-duplicate-iii" rel="nofollow">存在重复元素 III</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>373</td> 
   <td>1464</td> 
   <td><a href="https://leetcode-cn.com/problems/maximum-product-of-two-elements-in-an-array" rel="nofollow">数组中两元素的最大乘积</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>374</td> 
   <td>剑指 Offer 43</td> 
   <td><a href="https://leetcode-cn.com/problems/1nzheng-shu-zhong-1chu-xian-de-ci-shu-lcof" rel="nofollow">1～n整数中1出现的次数</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>375</td> 
   <td>剑指 Offer 64</td> 
   <td><a href="https://leetcode-cn.com/problems/qiu-12n-lcof" rel="nofollow">求1+2+…+n</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>376</td> 
   <td>84</td> 
   <td><a href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram" rel="nofollow">柱状图中最大的矩形</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>377</td> 
   <td>867</td> 
   <td><a href="https://leetcode-cn.com/problems/transpose-matrix" rel="nofollow">转置矩阵</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>378</td> 
   <td>547</td> 
   <td><a href="https://leetcode-cn.com/problems/friend-circles" rel="nofollow">朋友圈</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>379</td> 
   <td>907</td> 
   <td><a href="https://leetcode-cn.com/problems/sum-of-subarray-minimums" rel="nofollow">子数组的最小值之和</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>380</td> 
   <td>1013</td> 
   <td><a href="https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum" rel="nofollow">将数组分成和相等的三个部分</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>381</td> 
   <td>10</td> 
   <td><a href="https://leetcode-cn.com/problems/regular-expression-matching" rel="nofollow">正则表达式匹配</a></td> 
   <td>困难</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>382</td> 
   <td>973</td> 
   <td><a href="https://leetcode-cn.com/problems/k-closest-points-to-origin" rel="nofollow">最接近原点的 K 个点</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>383</td> 
   <td>剑指 Offer 26</td> 
   <td><a href="https://leetcode-cn.com/problems/shu-de-zi-jie-gou-lcof" rel="nofollow">树的子结构</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>384</td> 
   <td>171</td> 
   <td><a href="https://leetcode-cn.com/problems/excel-sheet-column-number" rel="nofollow">Excel表列序号</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>385</td> 
   <td>1375</td> 
   <td><a href="https://leetcode-cn.com/problems/bulb-switcher-iii" rel="nofollow">灯泡开关 III</a></td> 
   <td>中等</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>386</td> 
   <td>700</td> 
   <td><a href="https://leetcode-cn.com/problems/search-in-a-binary-search-tree" rel="nofollow">二叉搜索树中的搜索</a></td> 
   <td>容易</td> 
   <td>1</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

[LeetCode]: https://www.yuque.com/cuggz/interview/uxemin
[GIT]: https://gitee.com/AiShiYuShiJiePingXing/lovebetterworld
[image-20210528231208535]: /images/20221014/b6f9ea880ddc4cc1906fc0f2f3986ffb.png