2531. 使不同字符数量相等
Medium | Hash Table, String, Counting
Counting
2547. 分割数组的最小代价
Hard | Array, Hash Table, Dynamic Programming, Counting
2586. 统计范围内的元音字符串数目
Easy | Array, String, Counting
1347. 制造字母异位词的最小步骤数
Medium | Hash Table, String, Counting
1366. 通过投票对团队排名
Medium | Array, Hash Table, String, Sorting, Counting
1370. 递增递减字符串
Easy | Hash Table, String, Counting
1394. 找到数组中的幸运数
Easy | Array, Hash Table, Counting
1399. 统计最大的组
Easy | Hash Table, Math, Counting
1400. 构造 K 个回文字符串
Medium | Hash Table, String, Greedy, Counting
1419. 青蛙叫声的最少数目
Medium | String, Counting
1481. 删除 K 个元素后的最少唯一整数个数
Medium | Array, Hash Table, Greedy, Sorting, Counting
1497. 检查数组对是否可以被 k 整除
Medium | Array, Hash Table, Counting
1512. 好数对的数目
Easy | Array, Hash Table, Math, Counting
1519. 子树中标签相同的节点数
Medium | Hash Table, Tree, Depth-First Search, Breadth-First Search, Counting
1603. 设计停车系统
Easy | Design, Simulation, Counting
1655. 分配重复整数
Hard | Array, Hash Table, Dynamic Programming, Backtracking, Bit Manipulation, Counting, Bitmask
1704. 判断字符串的两半是否相似
Easy | String, Counting
1726. 相同乘积的元组
Medium | Array, Hash Table, Counting
1737. 修改最少字符使满足三个条件之一
Medium | Hash Table, String, Counting, Prefix Sum
1742. 盒子中球的最大数量
Easy | Hash Table, Math, Counting