[C] Matrix Multiplication

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

void print(double x[], int a, int b)
{
    int i, j;
    for(i = 0; i < a; i++)
    {
        for(j = 0; j < b; j++)
        {
            printf("%lf ", x[i * b + j]);
        }
        printf("\n");
    }

}

void matrixMultiplication(double x[], double y[], double z[], int a, int b, int c)
{
    int i, j, k, l;
    for(i = 0; i < a; i++)
    {
        for(j = 0; j < c; j++)
        {
            int tmp = 0;
            for(k = 0; k < b; k++)
            {
                tmp += x[i * b + k] * y[k * a + j];
            }

            z[i * c + j] = tmp;
        }
    }
}

int main()
{
    int m = 2, n = 3, p = 4;
    double a[m][n], b[n][p], c[m][p];

    srand(time(NULL));

    int i, j;
    for(i = 0; i < m; i++)
    {
        for(j = 0; j < n; j++)
        {
            a[i][j] = rand() % 100;
        }
    }
    for(i = 0; i < n; i++)
    {
        for(j = 0; j < p; j++)
        {
            b[i][j] = rand() % 50;
        }
    }

    print(*a, m, n);
    printf("\n");
    print(*b, n, p);
    printf("\n");

    matrixMultiplication(a, b, c, m, n, p);

    print(*c, m, p);
    printf("\n");

    return 0;
}