UVA11572 唯一的雪花 Unique Snowflakes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2619 [PDF](https://uva.onlinejudge.org/external/115/p11572.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11572/000f93543b4021ab3e6ea07af250f46d9867cb64.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11572/e1e96b64210af7f3040630c0b95bf7deee7c76db.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11572/a3f01bd53e96738eb26f87de6544ac3e003155ec.png)