Help ME im not good

I am trying to make a password lock for a door and im pretty sure I copied the exact code from the "easier to understand code" part on this page http://computercraft.info/wiki/index.php?title=Making_a_Password_Protected_Door please help

Okay, so you copied a piece of code… What's the problem?

If you want us to know whats the matter please post your code in here.
In order to do so you need to go to your .minecraft folder > saves > world name > computer > computer id ( id you dont know the computer id type "id" in the terminal > open that folder, open the file(you may have to change the name to codename.txt and to see the extensions, in the windows explorer click organize > Folder and search options > open the view tap > scroll down to Hide extensions for known file types and uncheck it.)
Post the code here using copy paste :P/>