convert to the base minus 2 of a number (#9748)

* Fix: Issue 9588

* Fix: Issue 9588

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix: Issue 9588

* Fix: Issue #9588

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix: Issue #9588

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix: Issue #9588

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix: issue #9793

* fix: issue #9793

* fix: issue #9588

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Abul Hasan 2023-10-05 18:09:14 +05:30 committed by GitHub
parent 1b6c5cc271
commit f159a33506
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -0,0 +1,37 @@
def decimal_to_negative_base_2(num: int) -> int:
"""
This function returns the number negative base 2
of the decimal number of the input data.
Args:
int: The decimal number to convert.
Returns:
int: The negative base 2 number.
Examples:
>>> decimal_to_negative_base_2(0)
0
>>> decimal_to_negative_base_2(-19)
111101
>>> decimal_to_negative_base_2(4)
100
>>> decimal_to_negative_base_2(7)
11011
"""
if num == 0:
return 0
ans = ""
while num != 0:
num, rem = divmod(num, -2)
if rem < 0:
rem += 2
num += 1
ans = str(rem) + ans
return int(ans)
if __name__ == "__main__":
import doctest
doctest.testmod()