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Update power.py

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lighting9999 2025-02-08 17:56:18 +08:00 committed by GitHub
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1 changed files with 3 additions and 15 deletions
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divide_and_conquer/power.py
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@ -29,26 +29,14 @@ def actual_power(a: int, b: int):
return a * half * half return a * half * half
def power(a: int, b: int) -> float: def power(a: int, b: int) -> float:
""" """
:param a: The base (integer). :param a: The base (integer).
:param b: The exponent (integer). :param b: The exponent (integer).
:return: The result of a^b, as a float for negative exponents. :return: The result of a^b, as a float for negative exponents.
>>> power(4,6)
4096
>>> power(2,3)
8
>>> power(-2,3)
-8
>>> power(2,-3)
0.125
>>> power(-2,-3)
-0.125
""" """
if b < 0: if b < 0:
return 1 / actual_power(a, b) return 1 / actual_power(a, -b)
return actual_power(a, b) return actual_power(a, b)
if __name__ == "__main__": if __name__ == "__main__":
print(power(-2, -3)) print(power(-2, -3)) #output -0.125