UVA361 Cops and Robbers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=5&page=show_problem&problem=297 [PDF](https://uva.onlinejudge.org/external/3/p361.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA361/c5b30c49c158c6e460cf1cabb91584bad65bb65b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA361/19d3aee52e6c3bf5ef55f14fd109330c3dace822.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA361/56e156c96c5a0ef5e28353724874f61339c02474.png)