2019年8月16日
SPOJ - QTREE4 Query on a tree IV（动态点分治）
摘要： QTREE4 - Query on a tree IV #tree You are given a tree (an acyclic undirected connected graph) with N nodes, and nodes numbered 1,2,3…,N. Each edge ha 阅读全文
posted @ 2019-08-16 10:35 Un-Defined 阅读(2) 评论(0) 推荐(0) 编辑