3138. 字母异位词连接的最小长度
Medium | Hash Table, String, Counting
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3139. 使数组相等的最小开销
Hard | Array, Greedy, Enumeration
3142. 检查网格中的条件
Easy | Array, Matrix
3143. 正方形内的最大点数
Medium | Array, Hash Table, String, Binary Search, Sorting
3144. 等频字符子串的最小分割
Medium | Hash Table, String, Dynamic Programming, Counting
3145. 寻找大数组元素的乘积
Hard | Array, Binary Search, Bit Manipulation
3146. 两字符串的排列差值
Easy | Hash Table, String
3147. 从神秘地牢中获取最大能量
Medium | Array, Dynamic Programming, Prefix Sum
3148. 网格中的最大差值得分
Medium | Array, Dynamic Programming, Matrix
3149. 找到最小代价的数组排列
Hard | Array, Dynamic Programming, Bit Manipulation, Bitmask