POJ 1741.Tree 树分治 树形dp 树上点对
摘要：
Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 24258 Accepted: 8062 Description Give a tree with n vertices,each edge has a length(po 阅读全文
posted @ 2017-09-21 16:51 GeekZRF 阅读(141) 评论(0) 推荐(0) 编辑