You have a single question that is always present in your "initial code screen"?
XOR-only questions are poor unless you're interviewing someone for a very specific kind of role.
XOR-only questions are poor unless you're interviewing someone for a very specific kind of role.
He never claimed that. It could just be part of the screen
I do agree with the parent above though that this use of xor is trivia, and not a great interview question.
It sounds like some of these questions are bad screeners anyway, but it makes them even worse if half the people going through the process are feigning surprise at the tricky question then quickly developing a “brilliant” solution.