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divide_and_conquer/power.py
@@ -2,6 +2,20 @@ def actual_power(a: int, b: int):
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"""
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Function using divide and conquer to calculate a^b.
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It only works for integer a,b.
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+
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+ :param a: The base of the power operation, an integer.
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+ :param b: The exponent of the power operation, a non-negative integer.
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+ :return: The result of a^b.
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+ Examples:
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+ >>> actual_power(3, 2)
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+ 9
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+ >>> actual_power(5, 3)
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+ 125
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+ >>> actual_power(2, 5)
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+ 32
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+ >>> actual_power(7, 0)
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+ 1
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if b == 0:
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return 1
@@ -13,6 +27,10 @@ def actual_power(a: int, b: int):
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def power(a: int, b: int) -> float:
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+ :param a: The base (integer).
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+ :param b: The exponent (integer).
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+ :return: The result of a^b, as a float for negative exponents.
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>>> power(4,6)
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4096
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>>> power(2,3)
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