UVA601 The PATH

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=542 [PDF](https://uva.onlinejudge.org/external/6/p601.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA601/5df5e738e3e8b9d26561632bc2b8e7b834cc5d0d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA601/e94ecab47c08e1ae82464d41d5bb098823ff1cdb.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA601/443c7931e8ca443f3b48528e82962f1e2fd6de9b.png)