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Yudong Jin
7257641e0e
* Retranslate the complete Japanese online edition from Chinese * Fit Japanese homepage labels and localize heading permalinks * Point Japanese contribution instructions to the Japanese preview * Replace locale conditionals with multilingual UI tables
22 lines
406 B
Python
22 lines
406 B
Python
"""
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File: fast_power.py
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Created Time: 2026-08-18
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Author: Hello Algo Team
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"""
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def fast_pow(x: int, n: int) -> int:
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"""高速べき乗法"""
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if n == 0:
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return 1
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half = fast_pow(x, n // 2)
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if n % 2 == 0:
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return half * half
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return half * half * x
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if __name__ == "__main__":
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assert fast_pow(7, 0) == 1
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assert fast_pow(3, 5) == 243
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assert fast_pow(2, 6) == 64
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