UVA12056 Circle Strafing

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3208 [PDF](https://uva.onlinejudge.org/external/120/p12056.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12056/66c087b116aaa4fd9cb033fdbf4153f6849a0525.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12056/cd4d8d30898b3658ea1c019fa5d57ad1448c1285.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12056/8e8dd5dd0552772754b7235f750a1732f58709dc.png)