UVA12142 Mobile Tower

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3294 [PDF](https://uva.onlinejudge.org/external/121/p12142.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12142/83681d39c68f2c25be7406a63db7b9f1ae2f5f5c.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12142/9e3ee11e4a762ee773daf94703ad8e3632627ab8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12142/a57226be11a7d9ef6dea02f8460c6d8894186412.png)