hdu 2566 统计硬币

//暴力！！！

#include<iostream>

using namespace std;

int main()
{
int t;
scanf("%d", &t);
while(t--)
{
int i, j, k;
int a, b, count = 0;
scanf("%d%d", &a, &b);
for( i=0; i <= b; i++ )
{
for( j=0; j <= b/2; j++ )
{
for( k=0; k <= b/5; k++ )
{
if(i + j*2 + k*5 == b && i + j + k == a)
count++;
}
}
}
printf("%d\n", count);
}
return 0;
}