2019年3月5日
Query on a tree IV(SPOJ - QTREE4)
摘要： 题目描述： You are given a tree (an acyclic undirected connected graph) with N nodes, and nodes numbered 1,2,3...,N. Each edge has an integer value assigne 阅读全文
posted @ 2019-03-05 19:54 Hëinz 阅读(254) 评论(0) 推荐(0)