Providing sample code....

[BlasterBates]

As a general rule I find however well designed software is, it is almost always sh*te if it wasn't written by whoever is looking at it.

I wouldn't bother taking any examples of coding, I think you're more likely to shoot yourself in the foot than impress, or if you do get someone to look to verify you've done something impressive.

[Jabberwocky]

Once many years ago I was set a programming task for a permie
position at a consultancy. I coded the thing up in Prolog since it was
a rule-based problem and took along my laptop with the code. It was
quite a nice demo I thought - but they subsequently reduced their offer
and wanted to know why I didn't code it in C++.

[threaded]

Yeah, that's why I take something physical to show the results of my efforts.