UVA11872 Where to Run

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=226&page=show_problem&problem=2983 [PDF](https://uva.onlinejudge.org/external/118/p11872.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11872/e68fe9a3ceb4026233802c14c119020131ff025c.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11872/9a2882d333eb46c762cdf1f8bc9e2ce4e1357291.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11872/f8cfa99445ab03d1d513b3444c10fffc5c0c2144.png)