2017年5月11日
Poj 2421 Constructing Roads
摘要： Description There are N villages, which are numbered from 1 to N, and you should build some roads such that every two villages can connect to each oth 阅读全文
posted @ 2017-05-11 20:23 Alex丶Baker 阅读(165) 评论(0) 推荐(0)