I kicked this off with Facebook visiting my school for our career fair. They seemed pretty nice and gave on-campus interviews to virtually everybody who had decent GPAs and qualifications. The on-campus interview was decent, nothing too bad.

Then, on the night of the on-campus interviews, they sent me an email inviting me on-site to their Menlo Park office. They were pretty nice and organized about arranging everything, from the hotel to the plane ticket, and it was overall a great experience.

The on-site interview consisted of a single 45-minute technical interview. It was a little strange to me that they would be able to gauge our skills in this single interview, and I was absolutely correct about it.

I was a bit slow in answering the questions, so I only got through one full question, whereas other candidates got through one and rushed through a second. I wasn't too upset about it, but then they sent out rejection emails to the vast majority of us. It wasn't too surprising because this was the last round of interviews, only a week before they were supposed to finalize their list of incoming interns.

Overall, it was a pretty positive experience, just wish I had better luck getting through their technical interview a bit faster.

Provide an algorithm to check whether a certain statement has balanced parentheses or not.