This article made me kinda curious - is it common to go into an interview expecting to have to write algorithms? I've read about this frequently but writing en

This article made me kinda curious - is it common to go into an interview expecting to have to write algorithms? I've read about this frequently but writing enterprise software I've found very little occasion to write algorithms. I say almost but I probably could just say that we never write algorithms at all. I'm not saying algorithms are unimportant, obviously a lot of the tools we use rely on that type of skill. Just that enterprise software is almost always more about workflows, schema design, UI layout, automating processes, etc. Possibly some accounting math is used but generally those formulas would be provided by the accountants anyway. Is this just something interviewers are asking because it indicates school training? It is just a benchmark of general awareness? Does it indicate understanding of the simplistic recursion that some algorithms use? It seems to me just testing plain old memorization of forumulas - it's not like I expect the interviewee to have thought up the fibonacci sequence on his/her own.