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.
• <cmath> is included to use round() for calculations.
• using namespace std; allows the use of standard functions without prefixing them with std::.

2. Enumeration (enPrimNotPrime)

• Defines two values:
  • Prime = 1 (for prime numbers).
  • NotPrime = 2 (for non-prime numbers).

3. User Input Function (ReadPositiveNumber)

• Uses a do-while loop to repeatedly prompt the user for a positive number.
• Ensures the input is greater than 0.
• Returns the validated integer.

4. Prime Check Function (CheckPrime)

• Takes an integer as input.
• If the number is less than 2, it is not prime.
• Uses half-range optimization to check for divisibility only up to N/2.
• Returns:
  • enPrimNotPrime::Prime if the number is prime.
  • enPrimNotPrime::NotPrime if the number is not prime.

5. Output Function (PrintNumberType)

• Calls CheckPrime() to check if the number is prime.
• Uses a switch statement to print:
  • "The number is Prime" if prime.
  • "The number is Not Prime" if not prime.

6. Program Execution (main())

• Calls ReadPositiveNumber() to get user input.
• Calls PrintNumberType() to determine and print primality.
• Returns 0 to indicate successful execution.

This structured explanation ensures clarity and ease of understanding.