2946. 循环移位后的矩阵相似性
Easy | Array, Math, Matrix, Simulation
Math
2947. 统计美丽子字符串 I
Medium | Hash Table, Math, String, Enumeration, Number Theory, Prefix Sum
2949. 统计美丽子字符串 II
Hard | Hash Table, Math, String, Number Theory, Prefix Sum
2954. 感染序列的数目
Hard | Array, Math, Combinatorics
2001. 可互换矩形的组数
Medium | Array, Hash Table, Math, Counting, Number Theory
2028. 找出缺失的观测数据
Medium | Array, Math, Simulation
2029. 石子游戏 IX
Medium | Array, Math, Greedy, Counting, Game Theory
2033. 使网格化为等值网格的最小操作数
Medium | Array, Math, Sorting, Matrix
2038. 移除相同颜色的相邻棋子
Medium | Math, String, Greedy, Game Theory
2048. 下一个数值平衡数
Medium | Hash Table, Math, Backtracking, Counting, Enumeration