Meta Software Engineer interview questions

I was referred by a friend and after some back-and-forth they set up a phone screen via Skype and collabedit.com. The feedback was very quick after the initial phone screening.

I was contacted by the recruiter through linkedin. I had an initial call with the recruiter where I was asked about my interests and what I might be looking for. Recruiter explained me the entire process on how the interview goes. Usually they have an initial phone interview, where you have to write code through collabedit. After that in person interview. Phone interview was all about data structures. First the interviewer asked me what interests me about facebook, what is one thing about facebook I like. After that interviewer asked me to print a binary tree in level order. I did that. And then I was asked to print the tree in level order but using DFS. Interviewer was nice, was giving a lot of hints whenever I was stuck. Overall, a good experience.