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"""

References: wikipedia:square free number

python/black : True

flake8 : True

"""

from __future__ import annotations

def is_square_free(factors: list[int]) -> bool:

"""

# doctest: +NORMALIZE_WHITESPACE

This functions takes a list of prime factors as input.

returns True if the factors are square free.

>>> is_square_free([1, 1, 2, 3, 4])

False

These are wrong but should return some value

it simply checks for repition in the numbers.

>>> is_square_free([1, 3, 4, 'sd', 0.0])

True

>>> is_square_free([1, 0.5, 2, 0.0])

True

>>> is_square_free([1, 2, 2, 5])

False

>>> is_square_free('asd')

True

>>> is_square_free(24)

Traceback (most recent call last):

...

TypeError: 'int' object is not iterable

"""

return len(set(factors)) == len(factors)

if __name__ == "__main__":

import doctest

doctest.testmod()

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