UVA11780 Miles 2 Km

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=117&page=show_problem&problem=2880 [PDF](https://uva.onlinejudge.org/external/117/p11780.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11780/665446a414557485412943a04b6fbb25787cf536.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11780/b2218f958621ae0189228d10d05b2c4c8e2987aa.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11780/3641fc8ccc2fae496c670c19836f468b1e462524.png)