20 lines
689 B
Python
20 lines
689 B
Python
def hi_product(xs):
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lowest_one, highest_one = min(xs[0], xs[1]), max(xs[0], xs[1])
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lowest_two, highest_two = xs[0] * xs[1], xs[0] * xs[1]
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highest = float('-inf')
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for x in xs[2:]:
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highest = max(highest, highest_two * x, lowest_two * x)
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lowest_one = min(lowest_one, x)
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highest_one = max(highest_one, x)
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lowest_two = min(lowest_two, highest_one * x, lowest_one * x)
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highest_two = max(highest_two, highest_one * x, lowest_one * x)
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return highest
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xs = [([-10,-10,1,3,2], 300),
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([1,10,-5,1,-100], 5000)]
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for x, expected in xs:
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result = hi_product(x)
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print(x, result)
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assert result == expected
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print("Success!")
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