Got phone interview through campus career fair. The interviewer was very nice and helpful. I had to code using one of the coding website. First question was just to implement binary search. I used recursion so the interviewer stopped me and asked what the disadvantage of using recursion is. Second question was about finding lowest common ancestor of two nodes in a tree. Then some follow-up questions regarding your solution. After the phone interview they sent me a coding test and I had to finish in 24 hours. It was about sorting a table according to user's choice of columns. It was not hard but I didn't quite get some of the details and I guess I messed it up. After sending my solution to them I never heard back from TripAdvisor.