2767. 将字符串分割成最少的美丽子字符串
Medium | Hash Table, String, Dynamic Programming, Backtracking
Backtracking
306. 累加数
Medium | String, Backtracking
401. 二进制手表
Easy | Backtracking, Bit Manipulation
526. 优美的排列
Medium | Array, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask
90. 子集 II
Medium | Array, Backtracking, Bit Manipulation
980. 不同路径 III
Hard | Array, Backtracking, Bit Manipulation, Matrix
988. 从叶结点开始的最小字符串
Medium | String, Backtracking, Tree, Depth-First Search, Binary Tree
996. 平方数组的数量
Hard | Array, Hash Table, Math, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask
3211. 生成不含相邻零的二进制字符串
Medium | String, Backtracking, Bit Manipulation
3376. 打破锁的最少时间 I
Medium | Array, Dynamic Programming, Backtracking, Bit Manipulation, Breadth-First Search, Bitmask