Tripadvisor Intern Software Engineer interview questions

I just take the interview on campus, and now they ask me to Boston to take another interview. Two people hold the interview, they are nice guys. They just ask me a question on binary search and ask me to write the binary search program on whiteboard. And another question is about a tree structure, find the shallowest ancestor of two nodes in tree.

Met company employee at university recruiting night. Stuck around after and handed resume to the employee Employee boasted about the work culture, laid back easy going etc. Took resume, and sent email the next day about a phone interview. Had 1 phone phone interview and it was brief, interviewer was extremely rude, repeatedly told me I didn't know enough because I hadn't taken the class even though I repeatedly answered the questions correctly.