UVA11901 Ellipse Hazard

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3052 [PDF](https://uva.onlinejudge.org/external/119/p11901.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11901/75ec8dc67870306806876103f01686f34828de54.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11901/344bc6a5aa08d98f826f0a444ea8b02319078333.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11901/3ee7c591f348c113d6039419c1d32fa8b8fae42a.png)