2019年3月12日
Constructing Roads
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 @ 2019-03-12 21:49 明霞 阅读(279) 评论(0) 推荐(0)
Jungle Roads
摘要： The Head Elder of the tropical island of Lagrishan has a problem. A burst of foreign aid money was spent on extra roads between villages some years ag 阅读全文
posted @ 2019-03-12 20:30 明霞 阅读(155) 评论(0) 推荐(0)