I interviewed there in 2012. The engineer called me, did his little talk and we jumped into the questions. His first question was the subset sum problem. The literal problem. It wasn't even couched in a practical application. So I said "this is subset sum. You can solve it with dynamic programming. I would look it up in a book." His response was "but I want you to solve it." I stopped the interview and thanked him for his time.

I'm a senior engineer. Those types of interviews are to stoke the egos of green engineers who remember the solutions to their algo finals questions. If I can look it up in a book, it's not worth the time to quiz me on it.