UVA12529 Fix the Pond

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=3974 [PDF](https://uva.onlinejudge.org/external/125/p12529.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12529/c69bf62a3c9db4787c37ef38c8d66b0546e2561a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12529/a78afb3f1cc3159a25d0f08a45844b584226d880.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12529/3fde596867134fe11ffc4fa5be334fdd47f993a6.png)