UVA13129 Subsets

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5040 [PDF](https://uva.onlinejudge.org/external/131/p13129.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13129/b53f022dc430449957e52648f4df9fcf820932a9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13129/91f041d4f55eea4a3ef3bf4c0520b308dbc36714.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13129/fa5a47a3aaf635cf5b8b83f8f2810f9720a0de86.png)