We used to do this as an interview question at my current job. We didn't expect people to solve it necessarily, and we just specified to solve for a single elev

We used to do this as an interview question at my current job. We didn't expect people to solve it necessarily, and we just specified to solve for a single elevator car. We just wanted to see how people would break down the problem. Even at that relatively reduced level of complexity, it's quite tricky to figure out how to prioritize who gets served when.