3541. 查找最频繁的元音和辅音
Easy | Hash Table, String, Counting
Hash Table
3542. 将所有元素转换为零的最少操作次数
Medium | Array, Hash Table, Stack, Greedy, Monotonic Stack
3543. 最大权重的K边路径
Medium | Hash Table, Dynamic Programming, Graph Theory
3545. 最多 K 个不同字符的最少删除次数
Easy | Hash Table, String, Greedy, Sorting, Counting
3551. 按数字和排序的最小交换次数
Medium | Array, Hash Table, Sorting
3552. 网格传送遍历
Medium | Array, Hash Table, Breadth-First Search, Matrix
3556. 最大质数子串的和
Medium | Hash Table, Math, String, Sorting, Number Theory
3557. 找到最大数量的不相交子串
Medium | Hash Table, String, Dynamic Programming, Greedy
3568. 清理教室的最少移动次数
Medium | Array, Hash Table, Bit Manipulation, Breadth-First Search, Matrix
3583. 统计特殊三元组
Medium | Array, Hash Table, Counting