UVA11545 Avoiding Jungle in the Dark

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2540 [PDF](https://uva.onlinejudge.org/external/115/p11545.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11545/839be366f41982dbb5fc47999ae03f47cff10de2.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11545/a39a5271604977c69551c0c41280c16788c38916.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11545/08b1b847a7712ce43dbd960d5f094b03329c3792.png)