I was given two easy algorithm questions.

My interviewer told me I had a bug in my solution to the first, but when they pointed out the "bug," it turned out they just didn't know Python very well.

For the second question, the interviewer acted like they had never seen dynamic programming before. They did not even seem to grasp the concept. It took me under 5 minutes to come up with a solution, but we spent the entire interview with the interviewer asking the same questions about how it would work. We ran out of time, and they wouldn't even let me write down my original solution.

I asked a few questions about what Facebook engineers spend their time doing other than coding. I received nothing but non-answers to all of them.

Find the length of the longest increasing subarray in a list.

Find the length of the longest increasing subsequence (with gaps allowed) in a list.