UVA13215 Polygonal Park

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=878&page=show_problem&problem=5138 [PDF](https://uva.onlinejudge.org/external/132/p13215.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13215/8353d75c3058681c5cd711310b8feae7476bacce.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13215/3b2c42d142f503d95fe07b8426f027e94bba58f7.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13215/c408f6d42217aaf753d1e3373584c34349c2eb8e.png)