Tripadvisor Intern Software Engineer interview questions

I submitted my resume online and was contacted to set up a phone interview. The first phone interview I was asked questions about big O times and algorithm examples. I was also asked about abstract classes vs interfaces. I was then asked to reverse a linked list using a shared screen browser app. A week later I hadn't heard back and emailed them. After their response we set up a second phone interview. This interview was just 2 programming questions. I was then brought in for an onsite interview. This consisted of 3 consecutive interviews with different engineers each asking 1-2 questions.

First had an oncampus interview, asked about binary search algorithm and some simple BST questions. Next was a homework assignment about sorting a table by key column(s). After that I got an onsite interview, was asked 5 questions, 2 people. One puzzle, the rest were coding problems. Overall, the people were very courteous and a pleasure to talk to. The HQ is very nice, great perks (free food, shuttles to Cambridge, week long hackathon for interns).