摘要: Tree Problem Description You are given a tree (an acyclic undirected connected graph) with N nodes. The tree nodes are numbered from 1 to NThere are N 阅读全文
posted @ 2017-04-13 20:47 meekyan 阅读(376) 评论(0) 推荐(0) 编辑
摘要: Little Devil I Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy thi 阅读全文
posted @ 2017-04-13 17:05 meekyan 阅读(274) 评论(0) 推荐(0) 编辑