UVA12779 The Largest Circle

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=823&page=show_problem&problem=4632 [PDF](https://uva.onlinejudge.org/external/127/p12779.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12779/8f2538715d12fff20f1f529132eec8e496e68b0b.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12779/63a1298c285175e685fd6b2cc60eeffcc994922c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12779/d4fbc8d4befb9b39d6d3426b2642140490e0717f.png)