I don't think it's a bad question to ask... just not the filter that the op thinks it is. all these people who are sitting in the comfort of not being in an int

I don't think it's a bad question to ask... just not the filter that the op thinks it is. all these people who are sitting in the comfort of not being in an interview and they are still getting it wrong. this filter should be easy enough to get the question right if you know any programming at all. something like the fizzbuzz question.