Meta Software Engineer interview questions

First round is on campus interview, the second round is Menlo Park on site interview. The major process of both rounds is white board coding, there are 2-3 questions each round, interviewer will discuss a little bit about resume projects ahead. The most important is white board coding and you have to tell the time space complexity of your code.

The interview involved a typical face to face whiteboard question. Pretty easy question although I started off with a correct but non-optimal algorithm. Then with some help implemented a lower complexity algorithm. Apparently starting off with a non-optimal solution is not acceptable, and syntax errors are also major issues so we didn't proceed to a second round.