UVA693 Digital Racing Circuit

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=634 [PDF](https://uva.onlinejudge.org/external/6/p693.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA693/adb67f494f56cdd98ffa16bd6dee9ef577b07dcd.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA693/a41ecac2eada846badc5c125019db77cbee3e170.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA693/ce501b3e216bead198f93fe791cd67b59fcd3836.png)