UVA10863 Shovelling Snow

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=20&page=show_problem&problem=1804 [PDF](https://uva.onlinejudge.org/external/108/p10863.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10863/bc90b49c3a750422d2c26127cbf3f92d5cd329ce.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10863/e02731bc2e215d4c245f7708866e91b89aca8274.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10863/d78217409c833146264341b2181aae1c9310a9e7.png)