#include <cstdio>
#include <algorithm>

int num[100010];

int main()
{
    #ifdef local
    freopen("food_test.txt","r",stdin);
    #endif
    int T,n,V;
    scanf("%d",&T);
    for(int i = 1;i <= T;++i)
    {
        scanf("%d%d",&n,&V);
        for(int j = 0;j < n;++j)
            scanf("%d",num+j);
        std::sort(num,num+n);
        for(int j = 0;j < n;++j)
        {
            if (num[j] > V)
            {
                printf("%d\n",j);
                break;
            }
            V -= num[j];
        }
    }
    return 0;
}