getting error: macro names must be identifiers

Question

Code blocks is Getting this error: macro names must be identifiers. I'm getting this error no matter what I do, even with the "hello world" code pre written in code blocks.
here is my code

#include<iostream>
using namespace std;

int main () {
cout<<"hello world"<< endl;
return 0;
}

Answer 1

Try putting a space between the include and <iostream>