When I first sat down to write FizzBuzz for kicks I spent a few minutes trying to think of an elegant or clever solution before writing the obvious answer. I th

When I first sat down to write FizzBuzz for kicks I spent a few minutes trying to think of an elegant or clever solution before writing the obvious answer. I think I would be similarly on guard in an interview situation. I'd say 1 to 10 minutes is easily acceptable accounting for over thinking. Now if they are actually struggling for 10 minutes, that's another matter.