People complain about having to reinvent major discoveries in interviews, but in my experience this is very rare. The overwhelming majority of coding questions

People complain about having to reinvent major discoveries in interviews, but in my experience this is very rare. The overwhelming majority of coding questions are more advanced versions of fizzbuzz, which merely require reapplication of common techniques. It is very frustrating as an interviewer if nobody can solve your questions, so the questions used will evolve to things that the typical competent applicant usually solves.