First Program

We have already know variables and Input/Output.
Now we can make many simple program.

For example  :

#include<iostream>
using namespace std;

int main(){
            cout << "Put your name : ";
            string name;
            cin >> name;
            cout << "Hello, " << name;
}

using namespace std is something like shortcut to use many library, included iostream.
Without it you have to use std::cin for cin and etc.

For now, put all your code inside int main.