It is so enjoyable to work with a young talent at 10:00 PM mock interview. I asked the interviewee to work on the algorithm to find height of tree, and then I found out that I learned a few thing through mock interview, and also I enjoyed discussion with the peer.
The peer is a top performer in his undergraduate. I just could not believe that I just learn from the third year undergraduate and also learn to be a better interviewer.
I will play again the video and see the interview again. Also I will post some code in C++ here later.