#include <stdio.h>
#include <stdlib.h>

int * multiply(int * A, int * B, int m, int n, int l);

int main(){
	
	int m=2, n=3, l=4;
	
	int A[2][3] = {{1, 0, 4},
                  {0, 1, 5}};
       	int B[3][4] = {{1, 2, 3, 1},
                  {2, 2, 2, 2}, {2, 2, 2, 2} };
	int * C;
	C = multiply((int *)A,(int *)B,m,n,l);

	int i,j;
	
	for (i = 0; i < m; i++){
		for(j=0; j<l; j++){
			printf("%d ",C[l*i+j]);
		}
		printf(" \n");
	}
	
	return 0;
}

int * multiply(int * A, int * B, int m, int n, int l){
	int * C = (int *)calloc(m*l,sizeof(int));
	int row;
	int col;
	int k;
	for (row = 0; row < m; row++){
		
		for (col=0; col < l; col++){
		
			for (k=0; k < n; k++){
				C[row*l+col] += A[row*n+k]*B[k*l+col];
	
			}
	
		}
	}
	return C;
}