1  f (long long d)
       2  {
       3    int i = 0;
       4    if (d == 1)
       5      i = 1;
       6    return i;
       7  }
       8  
       9  g (long long d)
      10  {
      11    int i = 0;
      12    if (d <= 0)
      13      i = 1;
      14    return i;
      15  }