#include <stdio.h>

#include <stdlib.h>

int main(void)
{
  /* keep all declarations at the beginning of your program */
  double x, y; 
  int i=1, k=2, n=10;

  /* type semicolon after every instruction */

  /* example of casting to a different type. Here we cast integer to double */

  x = ((double) 99) / 100;  
  printf("x= %lf  \n", x);

  /* example of a mixed arithmetical expression */

  y =  10 + x;	
  printf("y= %lf  \n", y);

  /* example of shortcut operators */
  /* Warning:	 ++i is not same as i++ */

  k = ++i + k;
  printf("k= %d  i=%d  \n", k, i);

  n = n + i++;
  printf("n= %d  i=%d  \n", n, i);

  /* To demo the predefined constant macro for the largest random number.
	We can access value of RAND_MAX because it is defined in stdlib.h that we have included
  */
  printf("On this machine RAND_MAX= %d  \n", RAND_MAX);

   /* Function rand() is declared in stdlib.h  that we have included above   */
  n = rand();	/* generate a random integer number */
  printf("n= %d  \n", n);

  return(0);
}