2018年9月21日
ACM-ICPC2018 青岛赛区网络预赛-B- Red Black Tree
摘要： 题目描述 BaoBao has just found a rooted tree with n vertices and (n-1) weighted edges in his backyard. Among the vertices, m of them are red, while the ot 阅读全文
posted @ 2018-09-21 20:34 特特w 阅读(224) 评论(0) 推荐(0) 编辑