# 测试
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|题目|出现次数|链接|
|-|-|-|
|3. 无重复字符的最长子串|7|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|
|227. 基本计算器 II|3|https://leetcode-cn.com/problems/basic-calculator-ii|
|74. 搜索二维矩阵|3|https://leetcode-cn.com/problems/search-a-2d-matrix|
|100. 相同的树|3|https://leetcode-cn.com/problems/same-tree|
|153. 寻找旋转排序数组中的最小值|2|https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array|
|补充题4. 手撕快速排序|2|https://leetcode-cn.com/problems/sort-an-array|
|20. 有效的括号|2|https://leetcode-cn.com/problems/valid-parentheses|
|1143. 最长公共子序列|2|https://leetcode-cn.com/problems/longest-common-subsequence|
|171. Excel表列序号|2|https://leetcode-cn.com/problems/excel-sheet-column-number|
|46. 全排列|1|https://leetcode-cn.com/problems/permutations|
|202. 快乐数|1|https://leetcode-cn.com/problems/happy-number|
|134. 加油站|1|https://leetcode-cn.com/problems/gas-station|
|470. 用 Rand7() 实现 Rand10()|1|https://leetcode-cn.com/problems/implement-rand10-using-rand7|
|121. 买卖股票的最佳时机|1|https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock|
|442. 数组中重复的数据|1|https://leetcode-cn.com/problems/find-all-duplicates-in-an-array|
|53. 最大子序和|1|https://leetcode-cn.com/problems/maximum-subarray|
|剑指 Offer 62. 圆圈中最后剩下的数字|1|https://leetcode-cn.com/problems/yuan-quan-zhong-zui-hou-sheng-xia-de-shu-zi-lcof|
|206. 反转链表|1|https://leetcode-cn.com/problems/reverse-linked-list|
|106. 从中序与后序遍历序列构造二叉树|1|https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal|
|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
|55. 跳跃游戏|1|https://leetcode-cn.com/problems/jump-game|
|136. 只出现一次的数字|1|https://leetcode-cn.com/problems/single-number|
|821. 字符的最短距离|1|https://leetcode-cn.com/problems/shortest-distance-to-a-character|
|43. 字符串相乘|1|https://leetcode-cn.com/problems/multiply-strings|
|237. 删除链表中的节点|1|https://leetcode-cn.com/problems/delete-node-in-a-linked-list|
|217. 存在重复元素|1|https://leetcode-cn.com/problems/contains-duplicate|
|240. 搜索二维矩阵 II|1|https://leetcode-cn.com/problems/search-a-2d-matrix-ii|