iframe-proxy | Sunbelt Computer Software

29 lines (26 loc) · 705 Bytes

def binary_coded_decimal(number: int) -> str:

"""

Find binary coded decimal (bcd) of integer base 10.

Each digit of the number is represented by a 4-bit binary.

Example:

>>> binary_coded_decimal(-2)

'0b0000'

>>> binary_coded_decimal(-1)

'0b0000'

>>> binary_coded_decimal(0)

'0b0000'

>>> binary_coded_decimal(3)

'0b0011'

>>> binary_coded_decimal(2)

'0b0010'

>>> binary_coded_decimal(12)

'0b00010010'

>>> binary_coded_decimal(987)

'0b100110000111'

"""

return "0b" + "".join(

str(bin(int(digit)))[2:].zfill(4) for digit in str(max(0, number))

)

if __name__ == "__main__":

import doctest

doctest.testmod()

Sunbelt Computer Software