2024年3月26日
TZOJ 8472 : Tree (重链剖分+线段树) POJ 3237
摘要： 今天学了重链剖分，正好可以补题 描述 You are given a tree with N nodes. The tree’s nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge 阅读全文
posted @ 2024-03-26 01:06 holy_crap 阅读(56) 评论(1) 推荐(1)