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ac6a160f1b
* added binary_count_trailing_zeros.py * updated binary_count_trailing_zeros.py file * changed file name to count_trailing_zeros.py * updated count_trailing_zeros.py * resolved flake8 error * renamed to binary_count_trailing_zeros.py * added required changes * resolved pre-commit error * added count_setbits.py * resolved errors * changed name to binary_count_setbits.py * updated file * reformated file
42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
def binary_count_setbits(a: int) -> int:
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"""
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Take in 1 integer, return a number that is
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the number of 1's in binary representation of that number.
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>>> binary_count_setbits(25)
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3
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>>> binary_count_setbits(36)
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2
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>>> binary_count_setbits(16)
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1
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>>> binary_count_setbits(58)
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4
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>>> binary_count_setbits(4294967295)
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32
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>>> binary_count_setbits(0)
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0
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>>> binary_count_setbits(-10)
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Traceback (most recent call last):
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...
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ValueError: Input value must be a positive integer
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>>> binary_count_setbits(0.8)
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Traceback (most recent call last):
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...
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TypeError: Input value must be a 'int' type
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>>> binary_count_setbits("0")
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Traceback (most recent call last):
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...
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TypeError: '<' not supported between instances of 'str' and 'int'
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"""
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if a < 0:
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raise ValueError("Input value must be a positive integer")
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elif isinstance(a, float):
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raise TypeError("Input value must be a 'int' type")
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return bin(a).count("1")
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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