But the process described in the post above is clearly about proficiency, so a challenge is not supposed to last 14 hours. ;) And I admit you have a point. The

But the process described in the post above is clearly about proficiency, so a challenge is not supposed to last 14 hours. ;) And I admit you have a point. The thing is, people really have well-looking CVs and they can't code BFS in Python. Probably balancing of 'technical grilling' is a hard to master skill in and of itself.