/* June 14, 1998 */
/* Program to determine class enrollment using functions, if  and loops */

#include 

/* function definition */
int empty(int c, int e);

main()
{
	/* declarations */
	int rnum;
	int cap;
	int enroll;

	/* request input */
	printf("Enter room number> ");
	scanf("%d", &rnum);
	printf("Enter capacity of room> ");
	scanf("%d", &cap);
	printf("Enter current enrollment> ");
	scanf("%d", &enroll);

	/* display header */
	printf("Room  Capacity  Enrollment  Empty seats  Filled/Not Filled\n");

	/* display results */
	if (cap == enroll)
        {
		printf("%d %8d %10d %10d %8c Filled\n", rnum, cap, enroll, empty(cap,
enroll), ' ');

        }
        else
        {
		printf("%d %8d %10d %10d %8c Not Filled\n", rnum, cap, enroll, empty(cap,
enroll), ' ');

        }



	printf("\n");
}


/* function definition */
int
empty(int c, int e)
{

	/* local variable */
	int seats;

	/* computation */
	seats = c - e;
	
	return(seats);	
}

    Source: geocities.com/yosemite/rapids/9568

               ( geocities.com/yosemite/rapids)                   ( geocities.com/yosemite)