2018-10-19 07:58:21 +00:00
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#!/usr/bin/python
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# encoding=utf8
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"""
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2018-05-19 11:07:24 +00:00
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The Fisher–Yates shuffle is an algorithm for generating a random permutation of a finite sequence.
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For more details visit
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wikipedia/Fischer-Yates-Shuffle.
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2018-10-19 07:58:21 +00:00
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"""
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2018-05-19 11:07:24 +00:00
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import random
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def FYshuffle(LIST):
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for i in range(len(LIST)):
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a = random.randint(0, len(LIST)-1)
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b = random.randint(0, len(LIST)-1)
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LIST[a], LIST[b] = LIST[b], LIST[a]
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return LIST
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if __name__ == '__main__':
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integers = [0,1,2,3,4,5,6,7]
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strings = ['python', 'says', 'hello', '!']
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print ('Fisher-Yates Shuffle:')
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print ('List',integers, strings)
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print ('FY Shuffle',FYshuffle(integers), FYshuffle(strings))
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