UVA11699 Rooks

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=78&page=show_problem&problem=2746 [PDF](https://uva.onlinejudge.org/external/116/p11699.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11699/5124c0373bd720a0304654387bdc7ad96e66270b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11699/92a1fbe1c6a34b6d55b7fe1625ebb9581798a89d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11699/a9b90d4eb1d0423ad8eb556d7b3ae341c2afad9e.png)