1156. 交换字符使得字符串同字符连续最长
Medium | Hash Table, String, Sliding Window
Hash Table
1160. 拼写单词
Easy | Array, Hash Table, String, Counting
1170. 根据字符串最小字符的频率比较字符串
Medium | Array, Hash Table, String, Binary Search, Sorting
1171. 从链表中删去总和值为零的连续节点
Medium | Hash Table, Linked List
1172. 餐盘栈
Hard | Hash Table, Stack, Design, Heap (Priority Queue)
1177. 从子字符串中构造回文串
Medium | Array, Hash Table, String, Bit Manipulation, Prefix Sum
1178. 每个谜题的有效单词数
Hard | Array, Hash Table, String, Bit Manipulation, Trie
1189. "balloon" 的最大数量
Easy | Hash Table, String, Counting
1202. 交换字符串中的字符
Medium | Array, Hash Table, String, Depth-First Search, Breadth-First Search, Union-Find, Sorting
1207. 独一无二的出现次数
Easy | Array, Hash Table