UVA614 Mapping the Route

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=555 [PDF](https://uva.onlinejudge.org/external/6/p614.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA614/77aec227d7b05017df95dd03af3bbbb8215084bb.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA614/fd6b376684c577a3db7e11b92321454ca404f919.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA614/c0922688037799c4244c8092adfe390cdcd27293.png)