Solution Source Code

Code Overview

1. Header Files and Namespace:

• <iostream> is included for input and output operations.
• <string> is included to allow usage of to_string() for message formatting.
• using namespace std; allows the use of standard functions without prefixing them with std::.

2. User Input Function (ReadNumber)

• Takes a custom message as input.
• Prompts the user to enter a floating-point number.
• Reads and returns the entered number.

3. Summation Function (SumNumbers)

• Reads a sequence of numbers from the user.
• Stops reading when the user enters -99.
• Keeps track of the total sum and input count.
• Returns the computed sum of numbers.

4. Program Execution (main())

• Calls SumNumbers() to start reading and summing numbers.
• Prints the final sum result.
• Returns 0 to indicate successful execution.

This structured explanation ensures clarity and ease of understanding.