get sum from x to y in c++

To get the sum from x to y in C++, you can use a loop to iterate through the numbers from x to y and add them up. Here's an example of how you can do this:

#include <iostream>

int main() {
    int x, y;
    int sum = 0;

    std::cout << "Enter the value of x: ";
    std::cin >> x;

    std::cout << "Enter the value of y: ";
    std::cin >> y;

    for (int i = x; i <= y; i++) {
        sum += i;
    }

    std::cout << "The sum from " << x << " to " << y << " is: " << sum << std::endl;

    return 0;
}

In this code, we first declare the variables x and y to store the start and end values of the range. We also declare a variable sum and initialize it to 0.

We then use std::cout and std::cin to prompt the user to enter the values of x and y.

Next, we use a for loop to iterate through the numbers from x to y. In each iteration, we add the current number to the sum variable using the += operator.

Finally, we use std::cout to display the result, which is the sum of the numbers from x to y.

The code example includes comments that explain what each part of the code does.