So you're going to be able to take a description of a problem and map it into something computational.
因此你们能拣出,一个问题的主要描述,并将其编成计算性的东西。
It's quite interesting and they became very proud. The parents came in. When they saw the map, "oh, this is where I come from".
这很有趣,孩子们也,深感自豪,当家长走进来看见地图后,他们会说:“喔,这是我的家乡“
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。
This by the way is the portrait of the world; It looks a lot like my map of the Ancient Near East, but it's not.
这也就是世界的图景;,就像我画的古代近东的地图,但它不是那样的。
Framingham is a town halfway between Worcester and Boston and you see it more or less in the middle of the map right here.
弗明汉是在伍斯特和波士顿间的一个小镇,它差不多就在地图的正中间,这儿
We've seen the price of oil, lately, move all over the map. It went up to $100 recently and it was just as late as late 1990s that it was under $20 and people just don't know where it's going to go.
我们都能看到现在石油的价格,一路飙升,最近达到每桶一百美元,而在上世纪九十年代末,每桶石油还不到二十美元0,人们根本无法预想石油价格,还会飙升到什么地步。
If you look at your map you will see first on the west side, you've got a low coastal plain. It is about 20 or 30 miles wide.
如果看地图的话,你会首先在西端看到,你会看到地势低的海岸平原,大约20到30公里宽。
Again, I want you to start seeing how to map the characteristics of the code- the characteristics of the algorithm, let's not call it the code-- to the complexity.
是算法中的那些特性,我们还是别说代码了,转化为复杂度-,我一会儿还会再讲点儿这个的,但是我们再看一个例子。
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