HDU 1102 Constructing Roads（并查集）
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 @ 2019-05-30 13:42 甜甜圈不懂巧克力的苦 阅读(260) 评论(0) 推荐(0) 编辑
