UVA10156 Sala-ma-Sond, A Nice Little Pond

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=13&page=show_problem&problem=1097 [PDF](https://uva.onlinejudge.org/external/101/p10156.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10156/1401c4869b303ad44a36f19e6d688dfeef357875.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10156/30ec54f5591e8f6b0b77b8f385a994d4c0e9dee6.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10156/296c6db7af343c658998d5b45cf5c3d347b667cf.png)