UVA10078 The Art Gallery

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=12&page=show_problem&problem=1019 [PDF](https://uva.onlinejudge.org/external/100/p10078.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10078/046cb39a003b79ab99ba73267da3058ffdcd86fb.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10078/75499e54218e0f1abb87fa2015e67113c4e37d91.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10078/f2b783c46039e5ee086cda92cd75497d95d7725c.png)