The use of in-person whiteboard type questions is not what I mean at all - I mean a small but realistic project for the person to solve at home on their own time with their own tools. Maybe there is a necessity for a faster screen but I'm not convinced that that particular question is close to optimal for most hiring unless programming those kind of algorithms is something you actually do on a regular basis.
This is the sixth bimonthly 'What are you working On?' thread. Previous threads are here. So here's the question:
What are you working on?
Here are some guidelines: