#include <iostream.h>
#include <iomanip.h>
#include <conio.h>

void pause () {

  cout << endl << "Hit any key to continue...";
  getch ();

}


int main () {

  double cost, payment, balance, last_payment, interest, total_interest;
  int interest_rate, months;

  for (;;) {

    cout << "Enter of cost of car and payment: ";
    cin >> cost >> payment;

    if ((cost >= 1000) && (payment > (cost * 0.01))) {
      break; // we've got valid inputs
    }

    cout << "Invalid inputs - please try again." << endl;

  }

  cout << endl
       << " Rate    Months     Last Payment   Total Interest" << endl
       << "--------------------------------------------------" << endl;

  for (interest_rate = 0; interest_rate <= 10; interest_rate++) {

    total_interest= 0;
    balance = cost;
    months = 0;

    while (balance > 0) {

      // compute interest payable for this month
      interest = balance * ((interest_rate / 12.0) / 100.0);
      interest = int((interest * 100) + 0.5) / 100.0; // round to nearest cent
      // increase balance owing the the interest
      balance += interest;
      // keep track of total interest paid
      total_interest += interest;

      // work out this month's payment and update the balance owing
      if (balance <= payment) {
        // this is our last payment
        last_payment = balance; // remember amount of last payment
        balance = 0; // car is now all paid off
      } else {
        // just another month
        balance -= payment;
      }
      months++;
    }

    cout << setiosflags (ios::fixed | ios::showpoint) << setprecision(2)
         << setw(4) << interest_rate
         << setw (9) << months
         << setw(16) << last_payment
         << setw(16) << total_interest<< endl;

  }

  pause();
  return 0;

}