Square of a number being defined using #define

Question

I was just going through certain code which are frequently asked in interviews. I came up with certain questions, if anyone can help me regarding this?

I am totally

Answer 1

define is just a text macro

main()
{
      int i,j;
      i=4/ 4 * 4;  // 1 * 4
      j=64/4 * 4; // 16 * 4
      printf("\n %d",i);
      printf("\n %d",j);
      printf("\n %d",square(4));
      getch();
}