Why don't I just keep track on each pass through the algorithm whether I have done any swaps?

我为什么不仅仅跟踪算法的,每一遍来看看我做了哪些交换呢？

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I expect most everybody could pass all of the questions but it's just to keep you on track and keep you going.

我希望大家在所有的问题上都能及格,但这只是想让大家不要掉队,督促一下

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