UVA10397 Connect the Campus

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=15&page=show_problem&problem=1338 [PDF](https://uva.onlinejudge.org/external/103/p10397.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10397/7eaac35e74e4a67eee7eefe5cc7d2e5242e9f3cc.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10397/920b3fcea9db99285abb9bb7825863e0f0476136.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10397/16831d75f1f319529b7f8f2fe292a15462e6cc26.png)