/*
 * "Make change":
 * Prompt for number of cents.
 * Compute counts of dollars, quarters, etc. and print.
 */
#include <stdio.h>

int main(void) {
	/* 
	 * this variable will initially hold the input and then be modified
	 * as we take out dollars, quarters, etc. 
	 * 
	 * (a better name would be "cents_remaining" but that is a lot to type)
	 */ 
	int cents;
	printf("enter number of cents:\n");
	/* 
	 * return value from scanf is what we will use later for error 
	 * checking -- print for now to find out how it works
	 */
	int r = scanf("%d", &cents);
	printf("did input succeed?  %d (1 means yes)\n", r);
	printf("input:  %d\n", cents);

	int dollars = cents / 100;
	cents = cents % 100;
	int quarters = cents / 25;
	cents = cents % 25;
	int dimes = cents / 10;
	cents = cents % 10;
	int nickels = cents / 5;
	cents = cents % 5;
	int pennies = cents;

	printf("%d dollars\n", dollars);
	printf("%d quarters\n", quarters);
	printf("%d dimes\n", dimes);
	printf("%d nickels\n", nickels);
	printf("%d pennies\n", pennies);

	return 0;
}