Still quadratic, right? I'm looking for the worst case behavior, it's still quadratic, it's quadratic in the length of the list, so I'm sort of stuck with that.

还是平方，对吧,我在寻找最坏的情况，它还是平方，它是列表长度的平方，我对此有点无奈了。

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At each stage, no matter which branch, here or here, I take, I'm cutting down the length of the list that I'm searching in half. All right?

选的是这里还是那里,我总是把列表分成两半，对吧？,所以如果我处理一个长度为n的列表？

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