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https://github.com/TheAlgorithms/Python.git
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Christian Clauss
0525ef5da8
* ruff rule ANN202 missing-return-type-private-function * ruff rule ANN202 missing-return-type-private-function
42 lines
812 B
Python
42 lines
812 B
Python
from __future__ import annotations
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def median(nums: list) -> int | float:
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"""
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Find median of a list of numbers.
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Wiki: https://en.wikipedia.org/wiki/Median
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>>> median([0])
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0
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>>> median([4, 1, 3, 2])
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2.5
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>>> median([2, 70, 6, 50, 20, 8, 4])
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8
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Args:
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nums: List of nums
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Returns:
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Median.
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"""
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# The sorted function returns list[SupportsRichComparisonT@sorted]
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# which does not support `+`
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sorted_list: list[int] = sorted(nums)
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length = len(sorted_list)
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mid_index = length >> 1
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return (
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(sorted_list[mid_index] + sorted_list[mid_index - 1]) / 2
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if length % 2 == 0
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else sorted_list[mid_index]
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)
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def main() -> None:
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import doctest
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doctest.testmod()
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if __name__ == "__main__":
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main()
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