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  1.  
  2. //Ryan Shahriyarpour   Carl Argila CS1A Practice Practicum
  3. /*******************************************************************************
  4.  * 
  5.  *    Savings Account Balance
  6.  * 
  7.  * *****************************************************************************
  8.  *    
  9.  *   Calculates the ending balance of a savings account after a
  10.  *   number of months, given monthly deposits and withdrawals.  
  11.  * 
  12.  * *****************************************************************************
  13.  * 
  14.  *   INPUT:    Annual interest rate (percent), starting balance,
  15.  *             number of months, and each month's deposit and withdrawal.
  16.  *			
  17.  * 
  18.  *   OUTPUT:   Ending balance, total deposits, total withdrawals,
  19.  *             and total interest earned.
  20.  * 
  21.  * 
  22.  * 
  23.  * ****************************************************************************/
  24.  
  25. #include <iostream>
  26. #include <iomanip>
  27. using namespace std;
  28.  
  29. int main() {
  30.     double annualRate, balance;
  31.     int months;
  32.  
  33.     cout << "Enter annual interest rate (%): ";
  34.     cin >> annualRate;
  35.     cout << "Enter starting balance: ";
  36.     cin >> balance;
  37.     cout << "Enter number of months: ";
  38.     cin >> months;
  39.  
  40.     double monthlyRate = (annualRate / 100) / 12;
  41.     double totalDeposits = 0, totalWithdrawals = 0, totalInterest = 0;
  42.  
  43.     for (int month = 1; month <= months; month++) {
  44.         cout << "\nMonth " << month << endl;
  45.  
  46.         // A) Deposit (no negatives)
  47.         double deposit;
  48.         cout << "Enter amount deposited: ";
  49.         cin >> deposit;
  50.         while (deposit < 0) {
  51.             cout << "Cannot be negative. Enter amount deposited: ";
  52.             cin >> deposit;
  53.         }
  54.         balance += deposit;
  55.         totalDeposits += deposit;
  56.  
  57.         // B) Withdrawal (no negatives)
  58.         double withdrawal;
  59.         cout << "Enter amount withdrawn: ";
  60.         cin >> withdrawal;
  61.         while (withdrawal < 0) {
  62.             cout << "Cannot be negative. Enter amount withdrawn: ";
  63.             cin >> withdrawal;
  64.         }
  65.         balance -= withdrawal;
  66.         totalWithdrawals += withdrawal;
  67.  
  68.         // Negative balance check
  69.         if (balance < 0) {
  70.             cout << "The account has been closed due to a negative balance." << endl;
  71.             break;
  72.         }
  73.  
  74.         // C) Monthly interest
  75.         double interest = balance * monthlyRate;
  76.         balance += interest;
  77.         totalInterest += interest;
  78.     }
  79.  
  80.     cout << fixed << setprecision(2);
  81.     cout << "\n--- Summary ---" << endl;
  82.     cout << "Ending balance:        $" << balance << endl;
  83.     cout << "Total deposits:        $" << totalDeposits << endl;
  84.     cout << "Total withdrawals:     $" << totalWithdrawals << endl;
  85.     cout << "Total interest earned: $" << totalInterest << endl;
  86.  
  87.     return 0;
  88. }
  89.  
Success #stdin #stdout 0s 5316KB
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stdin
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stdout
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Enter annual interest rate (%): Enter starting balance: Enter number of months: 
Month 1
Enter amount deposited: Enter amount withdrawn: 
Month 2
Enter amount deposited: Enter amount withdrawn: 
Month 3
Enter amount deposited: Enter amount withdrawn: 
Month 4
Enter amount deposited: Enter amount withdrawn: 
Month 5
Enter amount deposited: Enter amount withdrawn: 
Month 6
Enter amount deposited: Enter amount withdrawn: 
Month 7
Enter amount deposited: Enter amount withdrawn: 
Month 8
Enter amount deposited: Enter amount withdrawn: 
Month 9
Enter amount deposited: Enter amount withdrawn: 
Month 10
Enter amount deposited: Enter amount withdrawn: 
Month 11
Enter amount deposited: Enter amount withdrawn: 
Month 12
Enter amount deposited: Enter amount withdrawn: 
Month 13
Enter amount deposited: Enter amount withdrawn: 
Month 14
Enter amount deposited: Enter amount withdrawn: 
Month 15
Enter amount deposited: Enter amount withdrawn: 
Month 16
Enter amount deposited: Enter amount withdrawn: 
Month 17
Enter amount deposited: Enter amount withdrawn: 
Month 18
Enter amount deposited: Enter amount withdrawn: 
Month 19
Enter amount deposited: Enter amount withdrawn: 
Month 20
Enter amount deposited: Enter amount withdrawn: 
Month 21
Enter amount deposited: Enter amount withdrawn: 
Month 22
Enter amount deposited: Enter amount withdrawn: 
Month 23
Enter amount deposited: Enter amount withdrawn: 
Month 24
Enter amount deposited: Enter amount withdrawn: 
Month 25
Enter amount deposited: Enter amount withdrawn: 
Month 26
Enter amount deposited: Enter amount withdrawn: 
Month 27
Enter amount deposited: Enter amount withdrawn: 
Month 28
Enter amount deposited: Enter amount withdrawn: 
Month 29
Enter amount deposited: Enter amount withdrawn: 
Month 30
Enter amount deposited: Enter amount withdrawn: 
Month 31
Enter amount deposited: Enter amount withdrawn: 
Month 32
Enter amount deposited: Enter amount withdrawn: 
Month 33
Enter amount deposited: Enter amount withdrawn: 
Month 34
Enter amount deposited: Enter amount withdrawn: 
Month 35
Enter amount deposited: Enter amount withdrawn: 
Month 36
Enter amount deposited: Enter amount withdrawn: 
--- Summary ---
Ending balance:        $26120.82
Total deposits:        $18000.00
Total withdrawals:     $7200.00
Total interest earned: $5320.82
https://ideone.com/rEZu3c
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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