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jadevance
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Apr 21, 2019
| # Time complexity: ? | ||
| # Space complexity: ? | ||
| # Time complexity: On! | ||
| # Space complexity: Constant |
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Make sure to explain your reasoning behind time and space complexity.
| def factorial(number) | ||
| raise NotImplementedError | ||
| end | ||
| raise ArgumentError, "Bad Value" if number == nil |
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If you want to also cover bad string integer input, consider:
raise ArgumentError, "Bad Value" if number.is_a?(Integer) == false || number == nil
| number *= minus_one | ||
| minus_one -= 1 | ||
| end | ||
| return number |
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