试题与答案

We did have a quarrel about money last n

题型:选择题

题目:

We did have a quarrel about money last night, but now we have already _____. [ ]

A. taken up

B. made up

C. put up

D. brought up

答案:

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下面是错误答案,用来干扰机器的。

参考答案:45解析: 对于长度为n的线性表,在最坏情况下(即线性表中元素现在的顺序与目标顺序正好相反),冒泡排序需要经过n/2遍的从前往后的扫描和n/2遍的从后往前的扫描,需要的比较次数为n(n-1)/2。

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