填空题-单空题 较易0.85 引用3 组卷901
.对于各数互不相等的整数数组
(
是不小于3的正整数),对于任意的
,当
时有
,则称
,
是该数组的一个“逆序”,一个数组中所有“逆序”的个数称为该数组的“逆序数”,则数组(2,4,3,1)中的逆序数等于 ;若数组
中的逆序数为
,则数组
中的逆序数为___ .
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/825db8c2063240ccbf85b71bc71a877d.png?resizew=97)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/dd1e04dab4474558a25f5d280ebf50dd.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/c6f5588e955e473a9a956a294b0d23fa.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/17baaf5208df4071866db877e58d344c.png?resizew=44)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/4e7a6ba3869141ddb3362e08250da071.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/ec6065376b7c4ef3a49562906ea197d0.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2011/4/7/1570111060213760/1570111065628672/STEM/dd1e04dab4474558a25f5d280ebf50dd.png?resizew=13)
2011·北京朝阳·一模
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