I'm trying to setup a super-minimal coding challenge I can invite candidates to: complete this function in ruby, complete this other function in javascript. Under 30 min.<p>The platform runs the submissions against my tests, and if they pass, I'll review the actual code.<p>Everything I'm seeing wants to subject candidates to 2hr screenings for a bunch of skills with plagiarism detection and what all, and I just want to give them a quirky little challenge to show that they know what they're doing and have taste.<p>Any suggestions?