UVA11898 Killer Problem

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=226&page=show_problem&problem=2998 [PDF](https://uva.onlinejudge.org/external/118/p11898.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11898/088ba438a21b22d840a76e16d0286e178cd13744.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11898/65d8cade7343e93497f02d4323cb3714200a745b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11898/6da58e6d51e76833c5b4ba312c2314696a613f89.png)