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Re:高手麻烦解释下这句话:If a number x in the report is the ith number in the increasing sequence of positive integers having productivity property, I will replace it by i"

Posted by wsbear at 2007-08-05 12:12:19 on Problem 3307
In Reply To:高手麻烦解释下这句话:If a number x in the report is the ith number in the increasing sequence of positive integers having productivity property, I will replace it by i" Posted by:lihui_2008 at 2007-07-31 12:01:29
生成序列1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 49 50 54 56 60 63 64 70 72 75 80 ....然后根据位置i来求出结果,如i=10时结果为10,i=40时,结果为80,所产生的序列的所有数都有productivity property,可用2,3,5,7这四个数循环生成.....

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