Adding of Two Numbers in C++

Adding two numbers in C++ is straightforward. You can use the + operator to perform the addition. Here’s a simple C++ program to add two numbers:

#include <iostream>

int main() {
    // Declare variables to store the numbers
    double num1, num2;

    // Prompt the user to enter the first number
    std::cout << "Enter the first number: ";
    std::cin >> num1;

    // Prompt the user to enter the second number
    std::cout << "Enter the second number: ";
    std::cin >> num2;

    // Perform the addition
    double sum = num1 + num2;

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

    return 0;
}

In this program:

• We declare two double variables, num1 and num2, to store the input numbers.
• We use std::cout to prompt the user to enter both numbers.
• We use std::cin to read the input numbers from the user.
• We add the two numbers using the + operator and store the result in the sum variable.
• Finally, we use std::cout to display the sum to the user.

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