So what you typically do and a hash case is you design your code to deal with that.

你所需要做的就是通过设计你的代码,来解决上面的问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

What you're much better at doing is saying how do I take the problem I've got and map it into a class of algorithms about which I know and use the efficiencies of those to try and figure out how to make it work.

当你碰到问题的时候,更好的方法是把遇到的问题映射,到已经设计好的算法中去,并用这些算法来提高效率,来保证问题得到解决。

麻省理工公开课 - 计算机科学及编程导论课程节选

The problem is recurringly in society that it's just horrible designs.

这个问题在社会中反复地出现,那就是可怕的设计了。

哈佛公开课 - 计算机科学课程节选

When people first devise some new financial instrument it typically has trouble.

当某种金融工具刚被设计出来时,它通常会存在问题

耶鲁公开课 - 金融市场课程节选

Dissolvable stitches or sutures, now what needs to be engineered in those?

可吸收缝合线,在设计缝合线时需要注意什么问题

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Now, if you're an engineer, and you use the ideal gas law to design a chemical plant or a boiler or an electrical plant, you know, a steam plant, you're going to be in big trouble.

比如说锅炉，蒸汽机,我们会遇到一个大问题：,我们设计的机器将无法运作，因为对大部分实际气体。

麻省理工公开课 - 热力学与动力学课程节选

And what it was designed to do, was to solve that specific problem.

这就是它被设计出来的目的，用于解决某种专门的问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

So that would be a matter of good versus bad design.

所以那是个好模式，坏设计的问题。

哈佛公开课 - 计算机科学课程节选

Now, efficiency is obviously an important consideration when you're designing code, although I have to admit, at least for me, I usually want to at least start initially with code that works, and then worry about how I might go back and come up with more efficient implementation.

现在，当你设计程序的时候效率,是不得不考虑的问题，虽然我必须承认，至少对我来说,我是先担心程序能不能运行,再去把它的效率优化的,我喜欢可靠点的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

But with this example alone can you realize -- that with some more exercise of thoughts and intelligent-- I don't wanna say intelligent design here, intelligent design can you actually solve this problem so much more efficiently and just as correctly.

但通过这一例子，你们应该能认识到,通过更多的思维训练-,在这我并不想说智能设计，你就能真正更高效，准确地,解决问题。

哈佛公开课 - 计算机科学课程节选

You try to design actually I'm going to come back to that in a second. It's like you're trying to use a hash function that spread things out pretty evenly. But the places you store into in those lists may have to themselves have a small list in there, and when you go to check something, you may have to do a linear search through the elements in that list.

你尝试着去设计,实际上过会儿我会回头讲解这个问题,类似于你需要用一个哈希函数,非常平均的将物体分发出去,但是在列表中你数据,映射到的地方可能会有自己的一小段列表，当你回头查找数据的时候,你可能需要在那一小段列表中做线性查找。

麻省理工公开课 - 计算机科学及编程导论课程节选

The answer is I can't. OK, in the simple case of integers I can, but in the case of something more complex like faces or fingerprints or passwords for that matter, it's hard to design a hash function that has completely even distribution, meaning that it takes any input into exactly one output spot.

答案是我不能，好吧,在简单的整数的例子中,我可以做到，但是在一些更复杂的场景中,比如面部，指纹，密码相关的问题中，很难设计一个哈希函数具备完全平均的分配,也就是说，做到对任一输入，可以准确地得到相应的唯一输出,因此在一个哈希问题中。

麻省理工公开课 - 计算机科学及编程导论课程节选