没有你,我的生活似乎就没有了意义。
你在我的咖啡里放糖了没有?
“你已经知道了,”她严厉地说道,“而你却没有告诉我?”
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。
So they've got these superhighways which is, I don't know if you've seen them, they are marked on in blue.
所以,他们修了这些高速路,我不知道你见过没有,他们被标成蓝色了。
It's not that hard, and in particular, notice that all I'm doing here is writing down notation.
这没有你想象的那么难,我只不过写下了一些符号
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