So I haven't done magic, I've given you a really fast way to solve a knapsack problem, but it's still exponential deep down in its heart, in something.
所以我并没有施魔法,我已经告诉了你,一种快速解决背包问题的方法了,但是某些方面它的核心仍然是指数增长的。
because you've already done it or you don't need to do something because you've already done it before.
因为你之前已经做过,或者你觉得因为之前做过就没有必要再做了。
There's hardly a movie that goes by now that doesn't have products inserted and that's all bought and paid for.
现在已经很难看到一部,没有品牌植入的电影了,这全都是要花钱的
All right? Because if I don't do any swaps on a pass through the algorithm, then it says everything's in the right order.
好么?因为如果我,这一遍没有做任何交换,那么就意味着已经排好序了。
I think you may have defined it already, but I couldn't find a definition of strictly in the book we have.
我想你之前已经定义过了,但是我在课本里没有找到,“严格”的定义
It is no longer tethered to the nucleus so there is no energy stored in the system.
它已经不再受原子核的吸引,所以这个系统中没有能量储存了。
They say: Oh, these ladies are too quick; We get there too late, they've already given birth by the time we arrive.
她们说:希伯来妇女们动作太快;,我们到的晚了我们还没有到,她们已经生产了。
I'm sixty-four years old and I haven't had one second of genius in my entire life.
我已经六十四岁了,这辈子都没有哪怕一秒钟灵光乍现的时候
I don't have time here to discuss this section right now, but you've already had some encounter with the incredibly impressive level of ingenuity and grotesquery in this remarkable passage.
现在我们没有时间来讨论这一部分了,但你们已经领略到了这一段中,给人深刻印象的,独创性和其中的怪诞。
Of such a person we might say, they're no longer capable of P-functioning.
有人也许会说,他们已经没有人格功能能力。
I'm sure there were bows and arrows at that time, but they did not yet have the kind of armor that they would have in this time.
我能肯定那个时候已经有弓箭,但强力的盔甲,那时肯定还没有出现
They certainly have done their share but others have not done their share.
他们已经做了自己应该做的那份,但是有些国家并没有这样做。
So they kept track of country-by-country, when cases of smallpox occurred, and as it was eliminated from regions of the country, they then certified those regions to be smallpox free.
它跟踪调查了一个又一个国家,记录天花在这个国家中何时发生,又是何时清除的,并确证这个区域已经没有天花
We establish these targets, we review them once a year, we don't make changes in many years, they're quite stable, and when we do move them we don't move them by a lot.
我们设定了这些资产配置,每年都会评估一次,这些指标已经很多年没有变过了,十分稳定,即使我们要调整,也不会有很大幅度
So, if language seems exhausted because it's always preceding you, everything has always already been said, there's no new plot to be had, the world is full of stock phrases, how do you use them to embody an experience that seems fresh to you?
所以,如果因语言,在你之前就存在,而它就显得枯竭,如果一切都已经被说过,如果已没有新的情节可供创造,如果世界一直充满陈腔旧调,你如何能够用它们,呈现出一个崭新的体验?
So it's really neat to think that your counterparts 100 years ago right here at MIT could have been sitting in a class where they had Lewis as their lecturer, and he's putting forth these ideas -- these are actually his lecture notes, even though it wasn't even published yet, and giving this idea of Lewis structure, which is exactly what we keep using today in order to make a lot of these predictions.
因此会有很棒的感觉,当想一想一百年以前像你们一样,在这上学的同学可能正坐在教室里,听路易斯讲课,而他正在提出这些想法-,-而这些正是他的课堂讲义,尽管当时还没有发表,但已经给出了路易斯结构的思想,这正是我们直到今天都一直在用的,用它来做很多预测。
We're also happy to say we're not quite at 50% yet, 38% but the proportion of women in CS50 is now up to 38%, which is its highest level in 21 years.
我们非常高兴的说,在CS50课程上我们虽然没有50%的女生,但现在已经达到了,这是21年来最高的比例。
It's been a while since I've been doing that because I haven't had as much free time as I would have liked.
我已经很久没有播报了。因为我最近都没有太多的空余时间。
If you've been going 19 days without any food, you know, someone just has to take the sacrifice, someone has to make the sacrifice and people can survive.
如果你已经19天没有进食,那么总得有人要作出牺牲,必须有人牺牲,其他人才能活下来。
They're already paying for public transport, so it's just kind of a financial expense they could do without.
他们已经向公共交通付钱了,所以,那只是一笔没有必要的财务支出。
at night, you can't do, you can't even do it now. There's no crosstown bus there now.
是不可能了,甚至现在就不可能。因为那里已经没有跨区的巴士了。
Even though I wrote the presentation, I feel like I don't know the information well.
即便我已经把报告写下来了,我还是觉得我没有好好掌握其中的内容。
I've had a lot of people in classes, who... They aren't like, specifically famous,
我已经在课上见过许多人,他们……他们并没有看上去,特别出名,
All right? If you run it, you have a sense of the upper bound, about how much time it's going to take to do this computation, so you're not going to get surprised by something showing up.
第一,这样做意味着没有意外了对不对?,你去运行程序,你已经大致知道运行时间的上限了,因此发生任何事情,你都不会吃惊了。
Meanwhile, his youth was going away and now this imaginary student is now thirty-three years old never had time to marry or start a normal life.
与此同时,他的青春年华也已经逝去了,现在这位设想出来的同学已经33岁了,还没有结婚也没有开始正常人的生活。
Right, but if you just got the primary exposure, wouldn't the secondary response automatically-- not a booster shot, just the secondary response, because you were exposed?
但这时你已经获得这样的初次免疫,而因为你已经天然感染过该病毒,那么,在没有加强针的情况下,二次免疫是否无法自动发生
Because Roman legal structures-- and they even said this in Roman laws-- if you're a judge and you have a rich man and a poor man in your court, of course you're going to decide for the rich man, because the poor man has incentive to cheat; he's poor. But the rich man already has money, he doesn't have any incentive to cheat.
因为罗马法律结构。。。,甚至罗马法律中就这么写着。。。,如果你是法官,一个穷人和一个富人,同时出现在法庭上,你当然会偏袒富人,因为穷人有欺骗的动机,贫穷;,而富人已经很有钱了,没有动机再去行骗。
And the thought, and I think this is a pretty powerful thought, is that even if the robots are behaving behaviorally, they've got the behavior side of the emotions down, they don't have the feeling side at all.
这样一个在我看来极具影响的想法,就是,即便机器人表现出行为层面,即使它们已经获得情绪的行为面,但是它们并没有感受面
The backpack is now full, right?
背包现在已经满了,对吧?没有空间了?
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