817. 链表组件
Medium | Array, Hash Table, Linked List
Array
819. 最常见的单词
Easy | Array, Hash Table, String, Counting
820. 单词的压缩编码
Medium | Array, Hash Table, String, Trie
821. 字符的最短距离
Easy | Array, Two Pointers, String
822. 翻卡片游戏
Medium | Array, Hash Table
825. 适龄的朋友
Medium | Array, Two Pointers, Binary Search, Sorting
826. 安排工作以达到最大收益
Medium | Array, Two Pointers, Binary Search, Greedy, Sorting
833. 字符串中的查找与替换
Medium | Array, Hash Table, String, Sorting
840. 网格中的幻方
Medium | Array, Hash Table, Math, Matrix
845. 数组中的最长山脉
Medium | Array, Two Pointers, Dynamic Programming, Enumeration