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 (ReadAge)

• Prompts the user to enter their age.
• Reads and returns the age as an integer.

3. Range Validation Function (ValidateNumberInRange)

• Takes an integer number, lower bound (From), and upper bound (To) as input.
• Checks if the number is within the given range using:

return (Number >= From && Number <= To);

• Returns true if the number falls within the range, otherwise returns false.

4. Output Function (PrintResult)

• Calls ValidateNumberInRange() to check if the age is between 18 and 45.
• Prints:
  • "Age is a valid age" if it's within the range.
  • "Age is an invalid age" if it's out of range.

5. Program Execution (main())

• Calls ReadAge() to get user input.
• Calls PrintResult() to validate and display the age result.
• Returns 0 to indicate successful execution.

This structured explanation ensures clarity and ease of understanding.