> Ever try or even see a "Leet-Code" style question that stated the problem without providing example results? This style of question asks the examinee to devi

> Ever try or even see a "Leet-Code" style question that stated the problem without providing example results? This style of question asks the examinee to devise a procedure for producing those results, not to come up with the individual results themselves. If a student is given a bunch of systems of linear equations to solve, an answer key isn't especially useful since checking a candidate solution is pretty straightforward.