Programming

int main(int argc, char *argv[]) {
  int i, j, N, result = 0, **vec;

  if (argc < 2) {
    fprintf(stderr, "Usage: %s N\n", argv[0]);

  }

  /* ... how many numbers to read */
  N = atoi(argv[1]);
  /* check if N is a power of two; exit if not */
  if (! check(N)) {
    fprintf(stderr, "%d is not a power of 2 as required.  Exiting.\n", N);
    exit(1);
  }

  vec = (int**)malloc( (N)*(N)*sizeof(int*) );
  if ( vec == NULL ) {
    fprintf (stderr, "ERROR: not enough memory available!\n");
    exit ( 2 );
  }

  for (i = 0; i < N; i++)
    for (j = 0; j < N; j++)
      scanf("%d", &vec[i][j]);

  printf("\nOriginal array:\n ");
  for (i = 0; i < N; i++) {
    for (j = 0; j < N; j++)
      printf("%d ", vec[i][j]);
    printf("\n");
  }

  /* Now process array; example below is to add numbers */
  for (i = 0; i < N; i++) {
    result = check_property(vec[i], 0, N-1);
    printf("result[line %d]: %d\n", i, result);
  }

  /* free memory */
  free(vec);

  exit(0);