I've been out of college for 10 years, writing software professionally... it's so rare to have to calculate the big-O of an algorithm, or use a data structure much fancier than an array or a hash table, or implement my own search algorithm. And if I had to do any of those things, I would look it up and leverage this collaborative thing we've created called the internet.

So why should I be expected to regurgitate trivia at a whiteboard to get your job?