UVA145 Gondwanaland Telecom

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=81 [PDF](https://uva.onlinejudge.org/external/1/p145.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA145/c3d07da6ed463d6c9b36c009da90a023dd9fb9c8.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA145/ada267027bd4903822869cc2a6f8baee4401ad01.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA145/ed6662d9472d171d00588f3aae05b5fd8ee79638.png)