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26 lines
729 B
Python
26 lines
729 B
Python
#!/usr/bin/python
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"""
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The Fisher–Yates shuffle is an algorithm for generating a random permutation of a
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finite sequence.
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For more details visit
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wikipedia/Fischer-Yates-Shuffle.
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"""
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import random
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from typing import Any
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def fisher_yates_shuffle(data: list) -> list[Any]:
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for _ in range(len(data)):
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a = random.randint(0, len(data) - 1)
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b = random.randint(0, len(data) - 1)
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data[a], data[b] = data[b], data[a]
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return data
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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", fisher_yates_shuffle(integers), fisher_yates_shuffle(strings))
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