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Re:请教有关如何使循环次数变小（内详）

Posted by REX at 2005-05-15 18:48:03 on Problem 1026
In Reply To:请教有关如何使循环次数变小（内详） Posted by:leoyonn at 2005-05-11 11:05:50 
当然看不出来了，否则1282题是做什么的


> 例如n ＝ 4；
>    3 1 2 4     4 1 3 2     3 4 1 2
>    A B C D     A B C D     A B C D
> 一 B C D A     B D C A     D C A B
> 二 C A B D     D A C B     B A D C
> 三 A B C D     A B C D     C D B A
> 四                         A B C D
> 虽然跟k没有关系，但我不能看出到底循环能多少次，请教ing……
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