3538. 最小旅行时间的合并操作
Hard | Array, Dynamic Programming, Prefix Sum
Hard
3539. 寻找神奇序列的数组乘积之和
Hard | Array, Math, Dynamic Programming, Bit Manipulation, Combinatorics, Bitmask
3544. 子树反转和
Hard | Array, Dynamic Programming, Tree, Depth-First Search
3547. 图中边值的最大和
Hard | Math, Greedy, Graph Theory
3553. 带权重子图的最小路径 II
Hard | Array, Dynamic Programming, Bit Manipulation, Tree, Depth-First Search
3559. 边权重分配的方案数II
Hard | Array, Math, Dynamic Programming, Bit Manipulation, Tree, Depth-First Search
3562. 股票交易折扣的最大利润
Hard | Array, Dynamic Programming, Tree, Depth-First Search
3563. 相邻移除后字典序最小的字符串
Hard | String, Dynamic Programming
3569. 分割后不同质数个数的最大值
Hard | Array, Math, Segment Tree, Number Theory
3590. 第K小路径异或和
Hard | Array, Tree, Depth-First Search, Ordered Set