給一串?dāng)?shù)字n,數(shù)其中1,2,3,,,個(gè)數(shù),如果結(jié)果和原數(shù)字串相同,則是n is self-inventorying ,如果是在數(shù)了j步之后相同,則是n is self-inventorying after j steps,如果數(shù)n是個(gè)長(zhǎng)度為k的循環(huán),則是n enters an inventory loop of length k,如果15次迭代之后都不是,那么n can not be classified after 15 iterations
寫一個(gè)函數(shù)進(jìn)行迭代,把15次迭代的結(jié)果記錄下來,然后看是屬于那種情況輸出即可
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