All questions were around problem-solving with algorithms. First question, interviewer insisted I write it on the white-board, syntactically correct (in Java). Given time constraints and the pressure (yeah, I know, those are both things that were my problem, not theirs), I just wrote out an O(n^2) solution fairly quickly, although ate a lot of time to write compile-ready code on the whiteboard. By the time that was done, interview felt too much time had lapsed so started giving me hints, asking me if I could rewrite it for O(log n) or O(n). Got there eventually, but interviewer literally said, "In the interest of time, here are some hints...". Certainly, with more than a couple of minutes I could have come up with an O(n) solution on my own. The question was only moderately difficult.