UVA11261 Bishops

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2228 [PDF](https://uva.onlinejudge.org/external/112/p11261.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11261/2cc772d22f281f229c63b7465aacbe0589835865.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11261/32608764620095281b1f43184b7e49e7b3a7077c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11261/a02983dae2abcdee79f710adb6b2ecd9d52f3ff1.png)