UVA12927 Points Cover

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=862&page=show_problem&problem=4806 [PDF](https://uva.onlinejudge.org/external/129/p12927.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12927/43848ea54a381f350de6b9a3bcd3e03f4b1c997a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12927/dfe63a13d68344907adaf3668331d8f7ae921894.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12927/7900adc08e1642c43ae0a08ca7955a6278b9abb8.png)