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.