UVA12407 Speed Zones

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=279&page=show_problem&problem=3838 [PDF](https://uva.onlinejudge.org/external/124/p12407.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12407/1cdda738fc4b9cd8163cf44c3bc081f9c93c6a6c.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12407/7f28e1d7cf3e5d115174cd8437a30ab16bf4f395.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12407/9b6d97a0181bca7da1141bcc24fecca2e31f71c8.png)