simple loop

Hi!

I've tried to make a program that asks the user to enter 2 numbers and then take the first number and add the coming to that one until you've reached the top number that was entered by the user.

Simple; if the user enters 1 and 5, the program would calculate and add toghether all the numbers between and included the entered numbers (1 & 5).

any ideas?

thanks in advance!

/praetorian

Code:

---

#include <iostream.h>

int main()
{
        int end;
        cout << "End? ";
        cin >> end;
        if (end <= 0)
        {
                cout << "End must be greater than 0" << endl;
                return 1;
        }
        int sum = 0; // important to initialize it!
        for (int i = 1; i <= end; i++)
        {
                sum += i;
        }
        for (i = 1; i <= end)
        {
                cout << i;
                if (i != end)
                {
                        cout << " + ";
                }
        }
        cout << " is " << sum;
        return 0;
}

---

Code:

---

int numaddthing()
{
        int num1, num2, i, res = 0;
        cout << "Enter first number: "; cin >> num1;
        cout << "Enter second number: "; cin >> num2;

        for(i = num1; i <= num2; i++)
        {
                res += i;
        }
        return res;
}

---

thanks!

it works now!