#include <iostream>

using namespace std;

const int QUARTER = 25;
const int DIME = 10;
const int NICKEL = 5;
const int PENNY = 1;

int computeChange(int change, const int);

int main() {
  int numQuarters = 0,
      numDimes = 0,
      numNickels = 0,
      numPennies = 0,
      change = 0,
      given = 0,
      bill = 0;

  cout << endl << "How much is the bill? ";
  cin >> bill;

  cout << "How much are you giving to cover the cost? ";
  cin >> given;  

  change = given - bill;

  numQuarters = computeChange(change, QUARTER);
  change -= numQuarters * QUARTER;
  numDimes = computeChange(change, DIME);
  change -= numDimes * DIME;
  numNickels = computeChange(change, NICKEL);
  change -= numNickels * NICKEL;
  numPennies = computeChange(change, PENNY);
  change -= numPennies * PENNY;

  cout << endl << "Your change is the following: " << endl
       << endl << "Quarters: " << numQuarters << endl
       << "Dimes: " << numDimes << endl
       << "Nickels: " << numNickels << endl
       << "Pennies: " << numPennies << endl;
  return 0;
}

int computeChange(int money, const int SIZE_OF_COIN) {
  if(SIZE_OF_COIN == QUARTER) {
    return money/QUARTER;
  } else if(SIZE_OF_COIN == DIME) {
    return money/DIME;
  } else if(SIZE_OF_COIN == NICKEL) {
    return money/NICKEL;
  } else if(SIZE_OF_COIN == PENNY) {
    return money/PENNY;
  } 
  return 0;
}