// C++ program to multiply
// two square matrices.
#include <iostream>
using namespace std;
#define N 4
// This function multiplies
// mat1[][] and mat2[][], and
// stores the result in res[][]
void multiply(int mat1[][N],
int mat2[][N],
int res[][N])
{
int i, j, k;
for (i = 0; i < N; i++)
{
for (j = 0; j < N; j++)
{
res[i][j] = 0;
for (k = 0; k < N; k++)
res[i][j] += mat1[i][k] *
mat2[k][j];
}
}
}
// Driver Code
int main()
{
int i, j;
int res[N][N]; // To store result
int mat1[N][N] = {{1, 1, 1, 1},
{2, 2, 2, 2},
{3, 3, 3, 3},
{4, 4, 4, 4}};
int mat2[N][N] = {{1, 1, 1, 1},
{2, 2, 2, 2},
{3, 3, 3, 3},
{4, 4, 4, 4}};
multiply(mat1, mat2, res);
cout << "Result matrix is "<<endl;
for (i = 0; i < N; i++)
{
for (j = 0; j < N; j++)
cout << res[i][j] << " ";
cout << endl;
}
return 0;
}
