As an interviewer at Amazon, the brain teaser style questions aren't loved or taken very seriously. There's always some of that, sure, but usually it's a probl

As an interviewer at Amazon, the brain teaser style questions aren't loved or taken very seriously. There's always some of that, sure, but usually it's a problem with a bunch of ways to solve it, not just one. Some are better than others. And it's nice if you get the best one. But that's not what I personally care much about- it's how you communicate it, how your pseudocode looks, how well you've thought through the problem, how well you can explain the solution. There's also usually interviews focused on design. The problem may be easy, but the challenge is in how you'll solve it to handle (m|b|tr)illions of inputs.