UVA588 Video Surveillance

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=529 [PDF](https://uva.onlinejudge.org/external/5/p588.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA588/3985f15e6d52467f057daf89fcf7e22439de46aa.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA588/5978f4c5dadcbe744f129790f98fa5a71e60f6ec.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA588/36683872c837424e511e52bf1851f11fdacbfae7.png)