2170. 使数组交替的最少操作数
Medium | Array, Hash Table, Greedy, Counting
Hash Table
2182. 构造限制重复的字符串
Medium | Hash Table, String, Greedy, Heap (Priority Queue), Counting
2183. 统计被 K 整除的下标对数目
Hard | Array, Hash Table, Math, Counting, Number Theory
2186. 使两字符串互为字母异位词的最少步骤数 II
Medium | Hash Table, String, Counting
2190. 数组中跟在 key 后面的最频繁数字
Easy | Array, Hash Table, Counting
2196. 根据描述创建二叉树
Medium | Array, Hash Table, Tree, Binary Tree
2201. 统计可以提取的文物数量
Medium | Array, Hash Table, Simulation
2206. 将数组分成相等的对
Easy | Array, Hash Table, Bit Manipulation, Counting
2215. 找出两个数组的不同
Easy | Array, Hash Table
2225. 找出输掉零场或一场比赛的玩家
Medium | Array, Hash Table, Sorting, Counting
2227. 加密和解密字符串
Hard | Array, Hash Table, String, Design, Trie
2244. 完成所有任务的最少轮数
Medium | Array, Hash Table, Greedy, Counting
2248. 多个数组的交集
Easy | Array, Hash Table, Sorting, Counting
2249. 计算圆内格点数目
Medium | Array, Hash Table, Math, Geometry, Enumeration
2250. 统计包含每个点的矩形数目
Medium | Array, Hash Table, Binary Search, Binary Indexed Tree, Sorting
2251. 盛开花朵的数量
Hard | Array, Hash Table, Binary Search, Sorting, Prefix Sum, Ordered Set
2260. 拿起连续卡牌的最小数量
Medium | Array, Hash Table, Sliding Window
2262. 字符串的总引力值
Hard | Hash Table, String, Dynamic Programming
2266. 统计按键次数
Medium | Hash Table, Math, String, Dynamic Programming
2273. 移除字母异位词后的结果数组
Easy | Array, Hash Table, String, Sorting