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April 10, 2019 23:09
jadevance
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Apr 21, 2019
| raise NotImplementedError | ||
| return 1 if number == 0 | ||
| return 1 if number == 1 | ||
| raise ArgumentError if number == nil |
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If someone put in factorial("2") you'd get an exception. Consider checks such as if number.is_a?(Integer)
| factorial(5).must_equal 120 | ||
| end | ||
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| it "factorial(3) = 6" do |
| # Computes factorial of the input number and returns it | ||
| # Time complexity: ? | ||
| # Space complexity: ? | ||
| # Time complexity: O(n) where n is the number |
| # Time complexity: ? | ||
| # Space complexity: ? | ||
| # Time complexity: O(n) where n is the number | ||
| # Space complexity: O(1) |
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Please explain your reasoning for constant space.
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