UVA13070 Palm trees in the snow

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=866&page=show_problem&problem=4968 [PDF](https://uva.onlinejudge.org/external/130/p13070.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13070/caab0ce13f87324be7c5a6a2e776ff4990cffb6f.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13070/25573685be1da0544cb14013519ed4afa6b83309.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13070/3db1b1c264da1243975657d858c68407b808332a.png)