Help coming up with an algorithm for this set of code: #include \"stdafx.h\" #in

Question

Help coming up with an algorithm for this set of code:

#include "stdafx.h"
#include <iostream>
#include <string>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <iomanip>

using namespace std;

// Declare variables
double due, paid, difference;
int change, dollars20, dollars10, dollars5, dollars1;
int quarter, nickel, dime, penny;

int main()
{
   // Input
   cout << "Total Amount Due: $";
   cin >> due; cout << endl;
   cout << "Total Amount Paid: $";
   cin >> paid; cout << endl;

   if (paid > due)
   {
       // The amount difference calculate new variables.
       difference = paid - due;

       cout << fixed << setprecision(2) << "Total Change Due: $" << difference << endl << endl;
       difference = difference * 100;
       change = (int)(difference);

       //calculation of money that is due
       dollars20 = change / 2000;
       change = change % 2000;
       dollars10 = change / 1000;
       change = change % 1000;
       dollars5 = change / 500;
       change = change % 500;
       dollars1 = change / 100;
       change = change % 100;
       quarter = change / 25;
       change = change % 25;
       dime = change / 10;
       change = change % 10;
       nickel = change / 5;
       change = change % 5;
       penny = change;

       // Output
       cout << "Number of twenty dollar bills due: " << dollars20 << endl;
       cout << "Number of ten dollar bills due: " << dollars10 << endl;
       cout << "Number of five dollar bills due: " << dollars5 << endl;
       cout << "Number of one dollar bills due: " << dollars1 << endl;
       cout << "Number of quarters due: " << quarter << endl;
       cout << "Number of dimes due: " << dime << endl;
       cout << "Number of nickels due: " << nickel << endl;
       cout << "Number of pennies due: " << penny << endl;

   }
   else {
       cout << "No change is due." << endl;
   }

   cin.ignore(100);
   return 0;
}

Explanation / Answer

Algorithm :
Step1 : Start
Step2 : Declare varibles due,paid,difference
Step3 : read varibles due ,paid
Step4 : if paid greaterthan due then
          4.1 : calculate difference
          4.2 : difference shown as multiples of 20$,10$,5$,1$,quarter,dime,nickel,penny
          4.2 : stop
          else
              4.3 : Display No change due
          4.5 : stop

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