Meta Software Developer interview questions

I got the interview through on-campus recruiting at my university. I had two on campus interviews with software engineers. I received an offer within 3 days of the second interview. I was also flown out for University Day, however I did not have to participate in any interviews at that point.

Messaged recruiter on LinkedIn a few months after being initially contacted. Set up for a phone screen about a week later. Phone screen consisted of online whiteboard with a question which took majority of interview time.