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CamDavidsonPilon/five_thirty_eight.py

Created December 22, 2018 00:06
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five_thirty_eight.py
def falling_factorial(k, n):
product = 1
counter = k
while counter > n:
product *= counter
counter -= 1
return product
f = lambda k: 2 * falling_factorial(k, k-100) - k**100
assert f(7174) < 0
assert f(7175) > 0
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