2015年1月6日
spoj qtree IV
摘要： 2666. Query on a tree IVProblem code: QTREE4You are given a tree (an acyclic undirected connected graph) with N nodes, and nodes numbered 1,2,3...,N. ... 阅读全文
posted @ 2015-01-06 22:53 Mr.Ren～ 阅读(176) 评论(0) 推荐(0) 编辑