Divisible Subsequences
题目描述
[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=244&page=show_problem&problem=3372
[PDF](https://uva.onlinejudge.org/external/122/p12220.pdf)
![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12220/2c6b8ec14ec29323cd6c0e45b68de99319872794.png)
输入输出格式
输入格式
![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12220/0ec1aa9160a3da1e6cb88a8474859b73e908345a.png)
输出格式
![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12220/9fd0076ab12f6486b6ff82678065840bf396a277.png)
输入输出样例
输入样例 #1
2
7 3
1 2 3
4 8
2 1 2 1 1 2 1 2
输出样例 #1
0
6