2
3 5
4 8

1
2

<span style="font-size:14px;">#include<stdio.h>
int main()
{
	int t;
	scanf("%d",&t);
	while(t--)
	{
		int i,j,k,n,m,s=0;
		scanf("%d%d",&n,&m);
		for(i=0;i<=m/5;i++)
		{
			for(j=0;j<=m/2;j++)
			{
				k=n-i-j;
				if(k>=0&&k+2*j+5*i==m)
				s++;
			}
		}
		printf("%d\n",s);
	}
	return 0;
}</span>

<span style="font-size:14px;">#include<stdio.h>
#include<string.h>
int c1[110][110],c2[110][110];
int main()
{
	int i,j,k,l,n,m,t;
	scanf("%d",&t);
	while(t--)
	{
		int sum=0;
		scanf("%d%d",&n,&m);
		memset(c1,0,sizeof(c1));
		memset(c2,0,sizeof(c2));
		for(i=0;i<=n;i++)
		{
			c1[i][i]=1;
		}
		for(i=2;i<=5;i+=3)
		{
			for(j=0;j<=m;j++)
				for(k=0;k*i+j<=m&&k<=n;k++)
				{
					for(l=0;l+k<=n;l++)
						c2[k*i+j][k+l]+=c1[j][l];
					
				}
			for(j=0;j<=m;j++)
			{
				for(k=0;k<=n;k++)
				{
					c1[j][k]=c2[j][k];
					c2[j][k]=0;
				}
				
			}
		}
		printf("%d\n",c1[m][n]);
	}
	return 0;
}
</span>