Daniela - Leaves #42
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Daniela - Leaves #42
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CheezItMan
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Nov 14, 2019
CheezItMan
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CheezItMan
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You're absolutely right something is better than nothing. You don't have many methods here, but factorial and reverse_in_place are well done.
| # Space complexity: ? | ||
| # Time complexity: O(n), because of the size of the stack (number of methods that is accumulated in the stack to run) | ||
| # Space complexity: O(n), because of the size of this stack | ||
| def factorial(n) |
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| while i < j | ||
| memo = s[i] | ||
| s[i] = s[j] | ||
| s[j] = memo | ||
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| i += 1 | ||
| j -= 1 | ||
| end |
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A while loop, this is supposed to be recursive method 🤔
| # Time complexity: O(n) ~ n/2 as increasing and decreasing both pointer in same call | ||
| # Space complexity: O(n), n/2 recursive calls, | ||
| # because both pointers are moving each time the method is called | ||
| def reverse_inplace(s, i = 0, j = s.length - 1) |
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Better something than nothing...