functions? what? how?huh?

[GAMEPROJOE]

can someone please tell me how and where to add prototypes for the functions in this program. I've only started a couple of days ago, and im really confused.
#include <iostream.h>
#include <conio.h>
int main()
{
int input;
cout<<"1. Play game";
cout<<"2. Load game";
cout<<"3. Play multiplayer";
cout<<"4. Exit";
cin>>input;
switch (input)
{
case 1: playgame();
break;
case 2:
loadgame();
break;
case 3: //Note use of : not ;
playmultiplayer();
break;
case 4:
return 0;
default:
cout<<"Error, bad input, quitting";
}
return 0;
}

I got this from the tuts on this site. Thanks for time, and have a nice day.

[endo]

I dont normally read code without tags but I'm feeling helpful cos its Friday...

#include <iostream>

int function1( );  //prototype

int main( )
{
   //code here
   .
   .
   .
   .
   .
   .
}

int function1( )    //function definition
{
   //code here
}

If you put the function definition above main( ), you do not need prototypes. You can also put prototypes and defintions in diffenret files but dont worry about that until you're confident using functions in a single file

[ammar]

You put function prototypes just before the main() function, but the program you wrote above has only the main() function, and you don't a prototype for the main() function.