UVA793 Network Connections

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=734 [PDF](https://uva.onlinejudge.org/external/7/p793.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA793/8dc60c2ffff61fb6c819e9b720b5782dd1ae3437.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA793/df6fcb8a2d24a7087439eb27287615bf7a0485c7.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA793/f205ad150e96bdb98bdf831fd0f52867af91107e.png)