Leaves - Mariya #39
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Leaves - Mariya #39
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CheezItMan
reviewed
Nov 14, 2019
| @@ -3,47 +3,62 @@ | |||
| # Time complexity: ? | |||
| # Space complexity: ? | |||
| def factorial(n) | |||
| return s | ||
| end | ||
| a = s[0] | ||
| b = s.slice(1, s.length - 1) |
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s.slice creates a new array and copies all the individual elements over and so is O(n) by itself.
| end | ||
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| # Time complexity: ? | ||
| # Space complexity: ? | ||
| def reverse(s) | ||
| raise NotImplementedError, "Method not implemented" | ||
| def reverse(s) |
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👍
This works, but because you create a new array with each recursive call this is O(n2) for both time/space complexity.
| end | ||
| a = s[0] | ||
| b = s.slice(1, s.length - 1) | ||
| return reverse(b) + a | ||
| end | ||
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| # Time complexity: ? | ||
| # Space complexity: ? | ||
| def reverse_inplace(s) |
| end | ||
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| # Time complexity: ? | ||
| # Space complexity: ? | ||
| def reverse_inplace(s) | ||
| raise NotImplementedError, "Method not implemented" | ||
| raise NotImplementedError, "Method not implemented" | ||
| end | ||
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| # Time complexity: ? | ||
| # Space complexity: ? | ||
| def bunny(n) |
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