C++ for loop

[alihajj95]

Hi so I'm a beginner and I have to solve this question: Using “for loop”, write a program to calculate and display 1+2+3+…+1000.
That's what i did. I want to know if i solved the question right.

#include<iostream>
using namespace std;

int main()
{
    int n;
    cout <<"Enter a positive interger:";
    cin >> n;
    long sum = 0;
    for (int i=1; i <=n; i++)
    sum += i;
    cout << "The sum of the first" << n << " integers is " << sum;
 }

I just want to know if that what it mean by the question

[MiiNiPaa]

Well, it works, it does what advertised, it does not contain blatant mistakes, so it is fine.

[sly858]

at the end you should have a retrun 0; under the cout << "The sum ...

[sly858]

Also I may be misreading but I think it should be

#include <iostream>
#include <string>
using namespace std;
int main()
{
	int a,n,i,
               long sum=0;
	cout << "Enter a positive interger:";
	cin >> n;
	for (i =1; i<n; i++)
	{
	cout << i << "+";
	int a = i;
	sum +=a;
	}
	cout << n << "=\n";
	int B = sum+n;
	cout << B;
	return 0;
}