Meta Software Developer interview questions

Applied online via a referral to a different role (Partner Engineer) but was instead rerouted and interviewed for a Software Engineer- New Grad in Washington DC in February 2018. These jobs are coveted so I understand there is a lot of volume but I was never even contacted by a recruiter about the intent to interview for a different instead. Anyway, ended up interviewing because at the end of the day I was trying to get in the door so I didn't make even bother to ask why I was now interviewing for this new role instead. Ended up having a phone interview with a manger from an Engineering team. Had a virtual call with a live coding test for ~45 minutes. Thought my solutions were at least acceptable to pass a virtual call test but I get theres a standard of quality I didn't show in my code. Hard to be personable over the phone but the whole thing felt very dull and transactional. Interviewer honestly didn't seem to care about my past work at all and seemed to ask those questions redundantly. Conversation felt very impersonal in general. At end of it, I did realize I had never applied to Facebook with the intent of this role to begin with so I know I wasn't the best fit when it came down to it but I sort of felt that I got blatantly ignored by the company and siloed off immediately to a New Grad position with no communication about the reasoning .

I got the interview with Facebook at May, 2018. This is a great experience and learned a lot about the projects and working environment of Facebook. The coding questions are medium - difficult level.