UVA11262 Weird Fence

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2229 [PDF](https://uva.onlinejudge.org/external/112/p11262.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11262/904beb29a58e3d91e7539e0eedf2deb8a23804bd.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11262/55f5f1bd56c25d3fc6eb5b7eb579fb07efa44901.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11262/d7826d26f1d7259086641f2a35e4026321118ef3.png)