mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 13:31:07 +00:00
421ace81ed
* [pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.0.285 → v0.0.286](https://github.com/astral-sh/ruff-pre-commit/compare/v0.0.285...v0.0.286) - [github.com/tox-dev/pyproject-fmt: 0.13.1 → 1.1.0](https://github.com/tox-dev/pyproject-fmt/compare/0.13.1...1.1.0) * updating DIRECTORY.md * Fis ruff rules PIE808,PLR1714 --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: Christian Clauss <cclauss@me.com>
87 lines
2.5 KiB
Python
87 lines
2.5 KiB
Python
def get_reverse_bit_string(number: int) -> str:
|
|
"""
|
|
return the bit string of an integer
|
|
|
|
>>> get_reverse_bit_string(9)
|
|
'10010000000000000000000000000000'
|
|
>>> get_reverse_bit_string(43)
|
|
'11010100000000000000000000000000'
|
|
>>> get_reverse_bit_string(2873)
|
|
'10011100110100000000000000000000'
|
|
>>> get_reverse_bit_string("this is not a number")
|
|
Traceback (most recent call last):
|
|
...
|
|
TypeError: operation can not be conducted on a object of type str
|
|
"""
|
|
if not isinstance(number, int):
|
|
msg = (
|
|
"operation can not be conducted on a object of type "
|
|
f"{type(number).__name__}"
|
|
)
|
|
raise TypeError(msg)
|
|
bit_string = ""
|
|
for _ in range(32):
|
|
bit_string += str(number % 2)
|
|
number = number >> 1
|
|
return bit_string
|
|
|
|
|
|
def reverse_bit(number: int) -> str:
|
|
"""
|
|
Take in an 32 bit integer, reverse its bits,
|
|
return a string of reverse bits
|
|
|
|
result of a reverse_bit and operation on the integer provided.
|
|
|
|
>>> reverse_bit(25)
|
|
'00000000000000000000000000011001'
|
|
>>> reverse_bit(37)
|
|
'00000000000000000000000000100101'
|
|
>>> reverse_bit(21)
|
|
'00000000000000000000000000010101'
|
|
>>> reverse_bit(58)
|
|
'00000000000000000000000000111010'
|
|
>>> reverse_bit(0)
|
|
'00000000000000000000000000000000'
|
|
>>> reverse_bit(256)
|
|
'00000000000000000000000100000000'
|
|
>>> reverse_bit(-1)
|
|
Traceback (most recent call last):
|
|
...
|
|
ValueError: the value of input must be positive
|
|
|
|
>>> reverse_bit(1.1)
|
|
Traceback (most recent call last):
|
|
...
|
|
TypeError: Input value must be a 'int' type
|
|
|
|
>>> reverse_bit("0")
|
|
Traceback (most recent call last):
|
|
...
|
|
TypeError: '<' not supported between instances of 'str' and 'int'
|
|
"""
|
|
if number < 0:
|
|
raise ValueError("the value of input must be positive")
|
|
elif isinstance(number, float):
|
|
raise TypeError("Input value must be a 'int' type")
|
|
elif isinstance(number, str):
|
|
raise TypeError("'<' not supported between instances of 'str' and 'int'")
|
|
result = 0
|
|
# iterator over [1 to 32],since we are dealing with 32 bit integer
|
|
for _ in range(1, 33):
|
|
# left shift the bits by unity
|
|
result = result << 1
|
|
# get the end bit
|
|
end_bit = number % 2
|
|
# right shift the bits by unity
|
|
number = number >> 1
|
|
# add that bit to our ans
|
|
result = result | end_bit
|
|
return get_reverse_bit_string(result)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import doctest
|
|
|
|
doctest.testmod()
|