31 lines
520 B
Python
31 lines
520 B
Python
#potęgowanie binarne (left-to-right)
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def potegowanie(x, k):
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y = 1
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i = k.bit_length()
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while i >= 0:
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y = y**2
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if (k & 1) == 1:
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y = y*x
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k = k >> 1
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i = i - 1
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return y
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def potegowanieimod(x, k, n):
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y = 1
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i = k.bit_length()
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while i >= 0:
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y = y**2 % n
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if (k & 1) == 1:
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y = y*x % n
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k = k >> 1
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i = i - 1
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return y
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print(potegowanie(2, 6))
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print(potegowanieimod(5, 2, 10))
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