27 lines
631 B
Python
27 lines
631 B
Python
# Based on https://github.com/AllAlgorithms, python/algorithms/math/common_divisor_count.py
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"""
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The function takes two integers as input and return the number of common divisors of
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that pair
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"""
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def cd_count(a: int, b: int) -> int:
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if a == 0 or b == 0:
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return 2
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a = (-1 * a if a < 0 else a)
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b = (-1 * b if b < 0 else b)
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result = 0
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while a != 0:
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c = a
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a = b % a
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b = c
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for i in range(1, int((b ** 0.5) + 1)):
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if b % i == 0:
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if int(b / i) == i:
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result = result + 1
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else:
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result = result + 2
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return result
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