Question

I am supposed to write a program that asks the user for a positive integer value. The program should use a loop to get the sum of
all the integers from 1 up to the number entered. For example, if the user enters 50, the loop will find the sum of
1, 2, 3, 4, … 50.

But for some reason it is not working, i am having trouble with my for loops but this is what i have down so far.

#include <iostream>
using namespace std;

int main()
{
    int positiveInteger;
    int startingNumber = 1;
    int i = 0;

    cout << "Please input an integer up to 100." << endl;

    cin >> positiveInteger;

    for (int i=0; i < positiveInteger; i++)
    {
        i = startingNumber + 1;
        cout << i;
    }

    return 0;

}

I am just at a loss right now why it isn’t working properly.

Answer 1

try this:

#include <iostream>
using namespace std;

int main()
{
    int positiveInteger;
    int startingNumber = 1;

    cout << "Please input an integer upto 100." << endl;

    cin >> positiveInteger;

    int result = 0;
    for (int i=startingNumber; i <= positiveInteger; i++)
    {
        result += i;
        cout << result;
    }

    cout << result;

    return 0;

}