Matrix Multiplication in C

// C program to multiply two matrices
#include <stdio.h>
#include <stdlib.h>

// matrix dimensions so that we dont have to pass them as
// parametersmat1[R1][C1] and mat2[R2][C2]
#define R1 2 // number of rows in Matrix-1
#define C1 2 // number of columns in Matrix-1
#define R2 2 // number of rows in Matrix-2
#define C2 3 // number of columns in Matrix-2

void multiplyMatrix(int m1[][C1], int m2[][C2])
{
    int result[R1][C2];

    printf("Resultant Matrix is:\n");

    for (int i = 0; i < R1; i++) {
        for (int j = 0; j < C2; j++) {
            result[i][j] = 0;

            for (int k = 0; k < R2; k++) {
                result[i][j] += m1[i][k] * m2[k][j];
            }

            printf("%d\t", result[i][j]);
        }

        printf("\n");
    }
}

// Driver code
int main()
{
    // R1 = 4, C1 = 4 and R2 = 4, C2 = 4 (Update these
    // values in MACROs)
    int m1[R1][C1] = { { 1, 1 }, { 2, 2 } };

    int m2[R2][C2] = { { 1, 1, 1 }, { 2, 2, 2 } };

    // if coloumn of m1 not equal to rows of m2
    if (C1 != R2) {
        printf("The number of columns in Matrix-1 must be "
               "equal to the number of rows in "
               "Matrix-2\n");
        printf("Please update MACROs value according to "
               "your array dimension in "
               "#define section\n");

        exit(EXIT_FAILURE);
    }

    // Function call
    multiplyMatrix(m1, m2);

    return 0;
}