/*
 * Program to make change:
 * 
 * Input:  Non-negative integer N, number of pennies.
 *
 * Output:  Numbers of dollars, quarters, dimes, nickels, pennies to 
 *   add up to N.  The idea is to use the minimum number of smaller 
 *   coins (e.g., one dollar rather than four quarters).
 *
 * (Version using expressions in printf.  Also uses #define to define
 * constants to maybe improve readability.)
 */
#include <stdio.h>
#define CENTS_PER_DOLLAR	100
#define CENTS_PER_QUARTER	 25
#define CENTS_PER_DIME		 10
#define CENTS_PER_NICKEL	  5

int main(void) {

	int N;

	printf("enter number of pennies\n");
	scanf("%d", &N);
	printf("You entered %d\n", N);

	printf("%d dollars\n", N / CENTS_PER_DOLLAR);
	N = N % CENTS_PER_DOLLAR;

	printf("%d quarters\n", N / CENTS_PER_QUARTER);
	N = N % CENTS_PER_QUARTER;

	printf("%d dimes\n", N / CENTS_PER_DIME);
	N = N % CENTS_PER_DIME;

	printf("%d nickels\n", N / CENTS_PER_NICKEL);
	N = N % CENTS_PER_NICKEL;

	printf("%d pennies\n", N);

	return 0;
}