2018年9月2日
Constructing Roads HDU - 1102
摘要： 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 other. We say t 阅读全文
posted @ 2018-09-02 11:22 Free-Fly 阅读(175) 评论(0) 推荐(0) 编辑