Hi, I'm Dave, the worst person at C++ in the world! I have three questions that will prove how bad I am at this!

1. I'm testing out this whole C++ thing and I'm trying to make a multiple choice thingy. Can someone tell me what's wrong with this? (I didn't read too far on the tutorial.) I'm trying to make it so it goes to the next page thing.
Code:
#include <iostream>

using namespace std;

int main (int argc, char *argv[])
{
  cout << "Hello World!" << endl;
  cout << "Choice One..." << endl; 
  cin.get();
  return 1;
}

int message (int argc, char *argv[])
{ 
    cout << "Aftermath Of Choice One"  << endl;
    cin.get()
   return 0;
}
2. I have no idea what's going on there, it's a startup of Dev-C++, the book I'm learning from doesn't cover this and I don't like reading long things online. Could someone tell me how I make multiple choice things? I don't need a whole tutorial, just how to make the questions.

3. My uncle asked me what the second + in C++ is, can anyone tell me?

If this is too much, it's ok. Thanks.
-Dave