Meta Software Engineer interview questions

Failed out first round although that was my fault. Interviewer barely spoke english, and they had an extremely bad connection (it was on the phone). The test was fair however and they gave me plenty of time, I just wasn't good enough. One weird thing was that they asked me to choose any language I wanted to do the interview question; I picked ruby and then the back off and say well, anything but that.

The process started when one of the recruiters reached out to me on LinkedIn. Pretty much asked me a few basic questions which took the place of the screening process and a couple days later I was contacted to set up a round of interviews over the phone. The phone interview was quite easy actually and the interviewer was super nice and helpful. Two days later I was contacted again to set up onsite interviews. A couple days before the interview, one of their recruiters called me and told me absolutely everything I needed to know for the onsite interviews and what to expect. Right then it was evident that he really did care how well I did and I wasn't just another candidate. The onsite interviews consisted on just a single 45 minute long technical interview along with a free lunch, tours around their Seattle offices, and a few presentations by some of their engineers. Just a week later I got the call that I got an offer! Overall, Facebook was by far the best company I have ever interviewed with. They really try and take care of you and sell you the company, instead of just shuffling you through interviews. Because of my interview experience alone I decided to take the offer.