UVA12170 轻松爬山 Easy Climb

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3322 [PDF](https://uva.onlinejudge.org/external/121/p12170.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12170/b72bba61bc9ea7e086d38d2165aff1f53663d567.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12170/9fa6cce6a8ce12d554ca10633d91f098fd8e56a6.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12170/9cf43f1387d790efcfbc435b7605e22bb9fc6bae.png)