// paint.c -- uses conditional operator
#include <stdio.h>
// square feet per paint can
const int COVERAGE = 200;

int main(void)
{
	int sq_feet;
	int cans;

	printf("Enter number of square feet to be painted: ");
	while (scanf("%d", &sq_feet) == 1)
	{
		cans = sq_feet / COVERAGE;
		cans += ((sq_feet % COVERAGE == 0)) ? 0 : 1;
		printf("You need %d %s of paint.\n", 
			cans, cans == 1 ? "can" : "cans");
		printf("Enter next value (q to quit):\n");
	}
	return 0;
}