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Add two Numbers using Function in C++

To add two numbers using a function in C++, you can create a simple function that takes two parameters (the numbers to be added) and returns their sum. Here’s an example:

C++
#include <iostream>

// Function to add two numbers
int addNumbers(int num1, int num2) {
    return num1 + num2;
}

int main() {
    int number1, number2;

    // Get user input for the first number
    std::cout << "Enter the first number: ";
    std::cin >> number1;

    // Get user input for the second number
    std::cout << "Enter the second number: ";
    std::cin >> number2;

    // Call the addNumbers function and store the result
    int sum = addNumbers(number1, number2);

    // Display the result
    std::cout << "Sum: " << sum << std::endl;

    return 0;
}

In this program:

  • We define a function called addNumbers that takes two integer parameters (num1 and num2) and returns their sum using the + operator.
  • In the main function, we declare two integer variables, number1 and number2, to store the user’s input.
  • We use std::cin to get input from the user for both number1 and number2.
  • We call the addNumbers function with number1 and number2 as arguments and store the result in the variable sum.
  • Finally, we use std::cout to display the sum.

When you run this program, it will prompt you to enter two numbers, and then it will calculate and display their sum.

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