25 lines
500 B
Python
Executable file
25 lines
500 B
Python
Executable file
#! /usr/bin/env python3
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import sys
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import collatz
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usage='usage: collatzSearch [digits] outputs the lenght of the collatz sequence for every number less than 10^digits'
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if len(sys.argv)<2:
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print(usage)
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sys.exit()
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digits = sys.argv[1]
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try:
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digits = int(digits)
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except:
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print(usage)
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sys.exit()
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nextNumber = 1
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maxNumber = 10**digits
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while nextNumber<maxNumber:
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print('collatz length of '+str(nextNumber)+' is: \n'+str(collatz.seqenceLength(nextNumber)))
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nextNumber += 1
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