UVA959 Car Rallying

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=900 [PDF](https://uva.onlinejudge.org/external/9/p959.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA959/847bc0bbe4cc6f3392cfc7272efdea16720cb51e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA959/3fb326e5dec395b2767db1793d45463c82fdfb2f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA959/02d73a88fab38fb4cedd2127dee31c41cd5c90e2.png)