Well, return 0; is sending a return value to the operating system. I guess for the purposes of a little status thingy it would work, but you can't return a value unless you have declared a function ( main() ). What endl; does, is signifies that you are finished with that aesthetic line of coding.
-----
for example


You would think that those lines of text would show up on different vertical rows, but they don't. To get the effect of pressing enter, you would have to endl;


Also I recommend you space things out a bit more. It cout<<"texthere"endl; might get kindof hard to read in the midst of a wall-o-code.

If you continue to learn and need help, check out #C++. They always have a few people in there, like Blam, who really know what they're doing.

May I ask what compiler you are using?

I haven't been using one. I just downloaded one yesterday, Microsoft visual c++ or whatever.

My brain is full of fuck

You should get Dev C++ instead

lot easier, don't have to include extra directories or whatever

from what it says, it doesn't support windows 7.

I'm fine with visual c++ for now. It's something atleast.

#include <iostream>
int main()
{
	using namespace std;
	
	cout<< "This is a 2 number addition calculator, please enter the first number" << endl;
	
	int a = 0;
	int b = 0;
	int x = 0;
	int result;

	cin>> a;

	cout<< "Now enter the second number" << endl;
	
	cin>> b;

	cout<< "Your answer is " << endl;
	result=a+b;
	cout<< result;
	cin>> x;
	cin.get();
	return 0;
}

MY FIRST EVER C++ SUCCESS <3
/me is proud

I'm using 7 D:
But yeah, if you're already used to it, keep using it, etc

also I can see you got cin.get(); to work