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  1. #include <iostream>
  2. #include <iomanip>
  3. using namespace std;
  4.  
  5. int main() {
  6.     // Ask for input
  7.     double annual_interest_rate, starting_balance;
  8.     int months_passed;
  9.     cout << "Enter the annual interest rate: ";
  10.     cin >> annual_interest_rate;
  11.     cout << "Enter the starting balance: ";
  12.     cin >> starting_balance;
  13.     cout << "Enter the number of months that have passed: ";
  14.     cin >> months_passed;
  15.  
  16.     // Initialize variables
  17.     double balance = starting_balance;
  18.     double total_deposits = 0, total_withdrawals = 0, total_interest = 0;
  19.  
  20.     // Loop for each month
  21.     for (int i = 1; i <= months_passed; i++) {
  22.         // Ask for input
  23.         double deposit, withdrawal;
  24.         cout << "\nMonth " << i << "\n";
  25.         cout << "Enter the amount deposited: ";
  26.         cin >> deposit;
  27.         while (deposit < 0) {
  28.             cout << "Amount must be non-negative. Enter again: ";
  29.             cin >> deposit;
  30.         }
  31.         cout << "Enter the amount withdrawn: ";
  32.         cin >> withdrawal;
  33.         while (withdrawal < 0) {
  34.             cout << "Amount must be non-negative. Enter again: ";
  35.             cin >> withdrawal;
  36.         }
  37.  
  38.         // Update balance and totals
  39.         balance += deposit - withdrawal;
  40.         total_deposits += deposit;
  41.         total_withdrawals += withdrawal;
  42.  
  43.         // Calculate interest
  44.         double monthly_interest_rate = annual_interest_rate / 12;
  45.         double monthly_interest = balance * monthly_interest_rate;
  46.         total_interest += monthly_interest;
  47.         balance += monthly_interest;
  48.  
  49.         // Check if account has been closed
  50.         if (balance < 0) {
  51.             cout << "\nYour account has been closed due to a negative balance.\n";
  52.             break;
  53.         }
  54.     }
  55.  
  56.     // Display results
  57.     cout << fixed << setprecision(2);
  58.     cout << "\nEnding balance: $" << balance << endl;
  59.     cout << "Total deposits: $" << total_deposits << endl;
  60.     cout << "Total withdrawals: $" << total_withdrawals << endl;
  61.     cout << "Total interest earned: $" << total_interest << endl;
  62.  
  63.     return 0;
  64. }
  65.  
Success #stdin #stdout 0.01s 5532KB
comments (?)
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stdout 
Enter the annual interest rate: Enter the starting balance: Enter the number of months that have passed: 
Month 1
Enter the amount deposited: Enter the amount withdrawn: 
Your account has been closed due to a negative balance.

Ending balance: $-0.00
Total deposits: $0.00
Total withdrawals: $0.00
Total interest earned: $-0.00
https://ideone.com/pxU3P4
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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