17 lines
364 B
Python
17 lines
364 B
Python
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def nextInSequence(number):
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if isinstance(number, int):
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if number % 2 == 0:
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return number // 2
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else:
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return 3*number+1
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else:
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raise TypeError('input must be int!')
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def seqenceLength(number):
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length = 0
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while number != 1:
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number = nextInSequence(number)
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length += 1
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return length
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