Allegedly, yes. But the person who has seen it before is able to arrive at an answer, have it be ideal, and justify it, a lot more readily than someone who has

Allegedly, yes. But the person who has seen it before is able to arrive at an answer, have it be ideal, and justify it, a lot more readily than someone who has never seen it before. That's what the OP was even saying; if he's seen it before he does fine, if he hasn't he struggles and freezes up. That describes a LOT of people. It's also why I tend to interview with trivial questions, things that algorithmically have no trick at all to them (or we give them the algorithm).