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 @ 2017-06-05 21:05 九月旧约 阅读(135) 评论(0) 推荐(0) 编辑