All right. The rules, though, are, they can only move one disk at a time, and they can never cover up a smaller disk with a larger disk. OK. Otherwise you'd just move the whole darn stack, OK?

好，规则是，他们只能一次挪动一个盘子,并且不能把大盘子放在小盘子上,不这样的话你就直接,把这一堆盘子都挪过来了对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选