UVA12321 Gas Stations

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=278&page=show_problem&problem=3743 [PDF](https://uva.onlinejudge.org/external/123/p12321.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12321/ce32a74a65e305864ee49e42932281e3e51bb7df.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12321/b3e556b5ae1036b51eab93086cce418a4ddce994.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12321/850b597109e4ae59df1a73ec8b3b2d1f5509e6a0.png)