#include<iostream.h>	
const int n=2;

void chengfa(double (*x1)[n],double (*x2)[n],double (*x)[n],int m,int n,int l);
void main()
{
	int m=2,l=1;
	double x1[n][n]={1,2,3,4},x2[n][n]={8,0,1,0},x[n][n];
	chengfa(x1,x2,x,m,n,1);
	for(int i=0;i<m;i++)
	{	for(int j=0;j<1;j++)
			cout<<x[i][j]<<"  ";
		cout<<endl;
	}
}
void chengfa(double (*x1)[n],double (*x2)[n],double (*x)[n],int m,int n,int l)
{
	for(int i=0;i<m;i++){
		for(int j=0;j<l;j++)
		{
			x[i][j]=0;
			for(int k=0;k<n;k++)
				x[i][j]+=x1[i][k]*x2[k][j];
		}
	}
}