I agree, ignore tricks
I had a professor once who gave quizzes from trick books. Unfortunately, it was a night class and most of the students were working developers.
We all agreed his ideas were cute but garbage. In the real world, you don't develop programs that cannot be easily modified or understood later. You don't use 5 dimensional arrays of triply-dereferenced pointers.
I ask questions about how the appplicant thinks of the end program. What modifications do you think the user will suddenly discover is absolutely necessary the first week it is used? Real life questions which have very little to do with programming but affect how you approach programming a real life solution for someone.
