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https://github.com/TheAlgorithms/Python.git
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51 lines
1.0 KiB
Python
51 lines
1.0 KiB
Python
from __future__ import annotations
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def abs_max(x: list[int]) -> int:
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"""
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>>> abs_max([0,5,1,11])
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11
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>>> abs_max([3,-10,-2])
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-10
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>>> abs_max([])
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Traceback (most recent call last):
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...
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ValueError: abs_max() arg is an empty sequence
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"""
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if len(x) == 0:
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raise ValueError("abs_max() arg is an empty sequence")
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j = x[0]
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for i in x:
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if abs(i) > abs(j):
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j = i
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return j
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def abs_max_sort(x: list[int]) -> int:
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"""
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>>> abs_max_sort([0,5,1,11])
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11
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>>> abs_max_sort([3,-10,-2])
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-10
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>>> abs_max_sort([])
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Traceback (most recent call last):
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...
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ValueError: abs_max_sort() arg is an empty sequence
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"""
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if len(x) == 0:
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raise ValueError("abs_max_sort() arg is an empty sequence")
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return sorted(x, key=abs)[-1]
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def main():
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a = [1, 2, -11]
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assert abs_max(a) == -11
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assert abs_max_sort(a) == -11
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if __name__ == "__main__":
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import doctest
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doctest.testmod(verbose=True)
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main()
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