string return

//I was just playing around with c++ and tried to return a string in a function. This is the way I did it!
//Also do you recognize that you don't need the #include <string>? <iostream> is nice and includes strings aswell.
//But it's always important and necessary to #include <string> when you're using the string data type!!!(WARNING!)

#include <iostream>

using namespace std;

string helloworld(string text)
{
    return text;
}

int main()
{
    string function1 = helloworld("Hello World!");
    cout << function1 << endl;
}