3327. 检查DFS字符串是否为回文
Hard | Array, Hash Table, String, Tree, Depth-First Search, Hash Function
Array
3331. 找出变化后的子树大小
Medium | Array, Hash Table, String, Tree, Depth-First Search
3332. 游客能够获得的最大积分
Medium | Array, Dynamic Programming, Matrix
3334. 找到数组的最大因子分数
Medium | Array, Math, Number Theory
3336. 寻找 GCD 相等的子序列对数量
Hard | Array, Math, Dynamic Programming, Number Theory
3341. 找到到达最后一个房间的最短时间 I
Medium | Array, Graph Theory, Heap (Priority Queue), Matrix, Shortest Path
3342. 寻找到达最后一个房间的最小时间 II
Medium | Array, Graph Theory, Heap (Priority Queue), Matrix, Shortest Path
3346. 执行操作后的最大元素频率 I
Medium | Array, Binary Search, Sliding Window, Sorting, Prefix Sum
3347. 执行操作后元素的最大频率 II
Hard | Array, Binary Search, Sliding Window, Sorting, Prefix Sum
3349. 相邻递增子数组检测 I
Easy | Array