UVA12319 Edgetown's Traffic Jams

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=278&page=show_problem&problem=3741 [PDF](https://uva.onlinejudge.org/external/123/p12319.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12319/3a7d798be21414d64595b5a6e08a65e3f6120924.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12319/0e1b5a74325b064d77a0cb3dd5de7f9b2d8d72b4.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12319/1ed69186ca3feeb7b9d518434fad2127ed1035e2.png)