2135. 添加一个字母后得到单词的数量
Medium | Array, Hash Table, String, Bit Manipulation, Sorting
Bit Manipulation
2157. 字符串分组
Hard | Array, Hash Table, String, Bit Manipulation, Union-Find
2172. 数组的最大与和
Hard | Array, Dynamic Programming, Bit Manipulation, Bitmask
2206. 将数组分成相等的对
Easy | Array, Hash Table, Bit Manipulation, Counting
2212. 射箭比赛中的最大得分
Medium | Array, Backtracking, Bit Manipulation, Enumeration
2220. 转换数字的最少位翻转次数
Easy | Bit Manipulation
2275. 按位与结果大于零的最大组合
Medium | Array, Hash Table, Bit Manipulation, Counting
2305. 公平分发饼干
Medium | Array, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask
2306. 公司命名
Hard | Array, Hash Table, String, Bit Manipulation, Enumeration
2317. 操作后的最大异或值
Medium | Array, Math, Bit Manipulation