public class ClassicMatrixMultiplication implements IntMatrixMultiplication {
    public String getName () {
        return "classic";
    }

    public int[][] mult (int[][] c, int[][] a, int[][] b) {
        int n = a.length;

        for(int i=0; i<n; i++) {
            final int[] a_i = a[i];
            final int[] c_i = c[i];

            for(int j=0; j<n; j++) {
                int sum = 0;

                for(int k=0; k<n; k++) {
                    sum += a_i[k] * b[k][j];
                }

                c_i[j] = sum;
            }
        }

        return c;
    }
}