UVA12568 Optimizing Key Signatur

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=4013 [PDF](https://uva.onlinejudge.org/external/125/p12568.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12568/d693869ecf7b8f213cd1e9bddb60835c94dff393.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12568/42ca388160089fa56fa934ea117aed95d5baf2cc.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12568/efed6360723ac24cbbbb231dc773e116b17645c5.png)