So this looks like it's doing a little bit of extra work, but you can see, if you look at that how it cuts it down at each stage.
它就做了很多多余的工作,如果你认真看,你能看到每个阶段,它是如果缩减查找空间的,我要告诉你。
麻省理工公开课 - 计算机科学及编程导论课程节选
应用推荐
模块上移
模块下移
不移动