2949. 统计美丽子字符串 II
Hard | Hash Table, Math, String, Number Theory, Prefix Sum
Hash Table
2953. 统计完全子字符串的数量
Hard | Hash Table, String, Sliding Window
2956. 找到两个数组的公共元素
Easy | Array, Hash Table
2958. 频率不超过 K 的最长子数组长度
Medium | Array, Hash Table, Sliding Window
2001. 可互换矩形的组数
Medium | Array, Hash Table, Math, Counting, Number Theory
2007. 从双倍数组中还原原始数组
Medium | Array, Hash Table, Greedy, Sorting
2008. 出租车的最大盈利
Medium | Array, Hash Table, Binary Search, Dynamic Programming, Sorting
2009. 使数组连续的最少操作数
Hard | Array, Hash Table, Binary Search, Sliding Window
2013. 检测正方形
Medium | Array, Hash Table, Design, Counting, Data Stream
2032. 三个数组中的两个
Easy | Array, Hash Table, Bit Manipulation