Thread: help im an idiot

please help me. this is my first day learning about programming and im stuck on lesson 2 of the online tuturial on this website. i havent done any courses or read any books yet. but when i go to do the example programme and compile it comes up with this error: [Warning] In function `int main()':
`cout' undeclared (first use this function)
(Each undeclared identifier is reported only
`cin' undeclared (first use this function)
even when i copy and paste the programme.

the programme is this:

Code:

include <iostream.h>			
int main()				//Most important part of the program!
{
  int age;				//Need a variable...
  cout<<"Please input your age: ";	//Asks for age
  cin>>age;				//The input is put in age
  if(age<100)				//If the age is less than 100
  {
     cout<<"You are pretty young!";     //Just to show it works
  }
  else if(age==100)		//I use else just to show an example 
  {
     cout<<"You are old";		//Just to show you it works...
  }
  else
  {
    cout<<"You are really old";	//Executed if no other statement is executed
  }
  return 0;
}

your assistance wil be muchly appreciated
thanks simon