can someone tell me why this doesn't work? (i'm trying to create a simple calculator)

Question

#include <iostream>
using namespace std;

int main()
{ int a;
int b;
int a+b;
cout << "Enter a value \n";
cin >> a;
cout << "enter second value \n";
cin >> b;

cout << a+b;

return 0;
}

Answer 1

int a+b;

Just erase that and it works!

The line doesn't make sense. You are preparing two containers, a and b, for your two operands. Those get filled later. That should be all.

In the line before the return, the calculation is done and directly printed: cout << a + b;

I am wondering why you wrote that line up there, what were you planning to do with it?

Answer 2

int a+b; Crashes the code, because you cannot use Symbols e.g. *, +, x, %, & in varibles
instead, Get rid of that line to make that varible dissapear and everything will come back together.

cout << a+b; already defines the sum of the problem.