Solution Source Code

Code Overview

1. Header Files and Namespace:

• <iostream> is included for input and output operations.
• <string> is included for potential future use (not used in this program).
• using namespace std; allows the use of standard functions without prefixing them with std::.

2. User Input Function (ReadPositiveNumber)

• Uses a do-while loop to ensure positive input.
• Prompts the user to enter a valid loan amount or monthly installment.
• Reads and returns the validated floating-point number.

3. Loan Calculation Function (TotalMonths)

• Takes the loan amount and monthly installment as input.
• Computes the total months required to pay off the loan:

• Returns the total number of months.

4. Program Execution (main())

• Calls ReadPositiveNumber() to get:
  • Loan Amount
  • Monthly Installment
• Calls TotalMonths() to compute the loan repayment duration.
• Prints:
  • Total Months required to repay the loan
• Returns 0 to indicate successful execution.

This structured explanation ensures clarity and ease of understanding.