mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-12-22 03:00:14 +00:00
38 lines
797 B
Python
38 lines
797 B
Python
|
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()
|