UVA782 Contour Painting

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=723 [PDF](https://uva.onlinejudge.org/external/7/p782.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA782/4025891eea299f7c5adfa76bb45a85776beafec3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA782/8eccdc01458570994f1d4e039b0cb6a531480bf8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA782/6a593da87883eb29d79829a0cec9ea336f6fe4d4.png)