@ Anonymous, you'd fail a lot of interviews. You're cocky and unlikable. You also don't seem to understand that prior knowledge, like that of an AVL tree, and innate ability are not the same thing.

I did not say the reviewer did not know what binary trees were, I said s/he didn't know them (which means s/he did not know the details despite an "IQ of 170"). Who is inattentive now? I knew AVL trees when I was 14. So do you think I would fail an interview with you?

Dude, you didn't know binary trees. Are you surprised you were rejected. And your IQ is nowhere near 170, that I can guarantee.