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|题目|出现次数|链接|
|-|-|-|
|53. 最大子序和|5|https://leetcode-cn.com/problems/maximum-subarray|
|206. 反转链表|3|https://leetcode-cn.com/problems/reverse-linked-list|
|110. 平衡二叉树|2|https://leetcode-cn.com/problems/balanced-binary-tree|
|144. 二叉树的前序遍历|2|https://leetcode-cn.com/problems/binary-tree-preorder-traversal|
|54. 螺旋矩阵|2|https://leetcode-cn.com/problems/spiral-matrix|
|剑指 Offer 22. 链表中倒数第k个节点|2|https://leetcode-cn.com/problems/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof|
|215. 数组中的第K个最大元素|1|https://leetcode-cn.com/problems/kth-largest-element-in-an-array|
|300. 最长上升子序列|1|https://leetcode-cn.com/problems/longest-increasing-subsequence|
|146. LRU缓存机制|1|https://leetcode-cn.com/problems/lru-cache|
|88. 合并两个有序数组|1|https://leetcode-cn.com/problems/merge-sorted-array|
|94. 二叉树的中序遍历|1|https://leetcode-cn.com/problems/binary-tree-inorder-traversal|
|补充题4. 手撕快速排序|1|https://leetcode-cn.com/problems/sort-an-array|
|224. 基本计算器|1|https://leetcode-cn.com/problems/basic-calculator|
|152. 乘积最大子数组|1|https://leetcode-cn.com/problems/maximum-product-subarray|
|232. 用栈实现队列|1|https://leetcode-cn.com/problems/implement-queue-using-stacks|
|102. 二叉树的层序遍历|1|https://leetcode-cn.com/problems/binary-tree-level-order-traversal|
|69. x 的平方根|1|https://leetcode-cn.com/problems/sqrtx|
|补充题5. 手撕归并排序|1|https://leetcode-cn.com/problems/sort-an-array|
|41. 缺失的第一个正数|1|https://leetcode-cn.com/problems/first-missing-positive|
|14. 最长公共前缀|1|https://leetcode-cn.com/problems/longest-common-prefix|
|160. 相交链表|1|https://leetcode-cn.com/problems/intersection-of-two-linked-lists|
|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|
|141. 环形链表|1|https://leetcode-cn.com/problems/linked-list-cycle|
|226. 翻转二叉树|1|https://leetcode-cn.com/problems/invert-binary-tree|
|704. 二分查找|1|https://leetcode-cn.com/problems/binary-search|
|2. 两数相加|1|https://leetcode-cn.com/problems/add-two-numbers|
|剑指 Offer 54. 二叉搜索树的第k大节点|1|https://leetcode-cn.com/problems/er-cha-sou-suo-shu-de-di-kda-jie-dian-lcof|
|142. 环形链表 II|1|https://leetcode-cn.com/problems/linked-list-cycle-ii|
|3. 无重复字符的最长子串|1|https://leetcode-cn.com/problems/longest-substring-without-repeating-characters|