3699. Z字形数组I
Hard | Dynamic Programming, Prefix Sum
Prefix Sum
3707. 相等分数子串
Easy | String, Prefix Sum
3709. 设计考试成绩追踪器
Medium | Array, Binary Search, Design, Prefix Sum
3714. 最长平衡子串 II
Medium | Hash Table, String, Prefix Sum
3719. 最长平衡子数组 I
Medium | Array, Hash Table, Divide and Conquer, Segment Tree, Prefix Sum
3721. 最长平衡子数组 II
Hard | Array, Hash Table, Divide and Conquer, Segment Tree, Prefix Sum
3728. 边界和内部和相等的稳定子数组
Medium | Array, Hash Table, Prefix Sum
3729. 统计有序数组中能被K整除的不同子数组数量
Hard | Array, Hash Table, Prefix Sum
3737. 统计具有主要元素的子数组数量 I
Medium | Array, Hash Table, Divide and Conquer, Segment Tree, Merge Sort, Counting, Prefix Sum
3739. 计算多数元素子数组 II
Hard | Array, Hash Table, Divide and Conquer, Segment Tree, Merge Sort, Prefix Sum