UVA12052 Cyber cafe

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3204 [PDF](https://uva.onlinejudge.org/external/120/p12052.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12052/a9bbe8ff58070921242a55d6afda474764d78ee4.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12052/8c4a8d486f9d88d117ee33026d621a79163fdb39.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12052/bc9d2359554e698c1c7d707a627b71108dd3edfe.png)