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# https://www.tutorialspoint.com/python3/bitwise_operators_example.htm

def binary_xor(a: int, b: int) -> str:

"""

Take in 2 integers, convert them to binary,

return a binary number that is the

result of a binary xor operation on the integers provided.

>>> binary_xor(25, 32)

'0b111001'

>>> binary_xor(37, 50)

'0b010111'

>>> binary_xor(21, 30)

'0b01011'

>>> binary_xor(58, 73)

'0b1110011'

>>> binary_xor(0, 255)

'0b11111111'

>>> binary_xor(256, 256)

'0b000000000'

>>> binary_xor(0, -1)

Traceback (most recent call last):

...

ValueError: the value of both inputs must be positive

>>> binary_xor(0, 1.1)

Traceback (most recent call last):

...

TypeError: 'float' object cannot be interpreted as an integer

>>> binary_xor("0", "1")

Traceback (most recent call last):

...

TypeError: '<' not supported between instances of 'str' and 'int'

"""

if a < 0 or b < 0:

raise ValueError("the value of both inputs must be positive")

a_binary = str(bin(a))[2:] # remove the leading "0b"

b_binary = str(bin(b))[2:] # remove the leading "0b"

max_len = max(len(a_binary), len(b_binary))

return "0b" + "".join(

str(int(char_a != char_b))

for char_a, char_b in zip(a_binary.zfill(max_len), b_binary.zfill(max_len))

)

if __name__ == "__main__":

import doctest

doctest.testmod()

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