OK. And then the exponentials, as you saw is when typically I reduce the problem of one size into two or more sub-problems of a smaller size.

好，然后说到指数级，正如你所见，典型的例子是,我讲一个问题分解成为,两个更小规模的子问题。

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A good example--we used it a moment ago-- of a disjunct melody is-- Can we all sing that?

我们之前听过的一段曲调,是一个跳进旋律的典型例子,我们大家一起唱好吗

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