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

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

Author: pre-commit-ci[bot]

bit_manipulation/have_different_signs.py

@@ -1,5 +1,6 @@
 # https://www.geeksforgeeks.org/detect-if-two-integers-have-opposite-signs/
 
+
 def have_different_signs(number1: int, number2: int) -> bool:
     """
     Check if two integers have different signs.
@@ -21,6 +22,7 @@ def have_different_signs(number1: int, number2: int) -> bool:
     # Check if the signs of the two numbers are different
     return (number1 < 0 and number2 >= 0) or (number1 >= 0 and number2 < 0)
 
+
 if __name__ == "__main__":
     import doctest