UVA12049 Just Prune The List

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3200 [PDF](https://uva.onlinejudge.org/external/120/p12049.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12049/06ed23793d0d3c38b9dd36c882a1355a86bb350d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12049/e33c3e901b6b2ec54703f640deaa924d7dff77e1.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12049/83e5b2a932006c2d52e97cc25f932a2d3a390308.png)