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Water - Sophia #43

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SoCodeDo
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@SoCodeDo SoCodeDo commented Nov 9, 2020

Chris, I wasn't sure on how to do start the final one, but wanted to get this in. I will try to re-attempt this week. Thanks!

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Thanks for getting in what you did. Not bad, you had the methods right, just look at my feedback regarding the time/space complexity.

Comment on lines +3 to 5
# Time complexity: O(n)
# Space complexity: O(n)
def factorial(n)

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👍

Comment on lines +15 to 17
# Time complexity: O(n)
# Space complexity: O(n)
def reverse(s)

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👍 However the space & time complexity are O(n^2) because the slice you do has space/time complexity of O(n)

Comment on lines +25 to 27
# # Time complexity: O(1)
# # Space complexity: O(1)
def reverse_inplace(s)

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⚠️ How could you reverse an entire string in O(1) time?

Also you're using the exact method I told you not to use.

Comment on lines +35 to -24
# # Time complexity: O(n)
# # Space complexity: O(n)
def bunny(n)
raise NotImplementedError, "Method not implemented"

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👍

Comment on lines +45 to 47
# # Time complexity: O(n^2) * not sure about this one
# # Space complexity: O(n^2) * same here?
def nested(s)

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👍 Correct!

Comment on lines +58 to 60
# # Time complexity: O(n)
# # Space complexity: O(n^2)
def search(array, value)

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This works, but once again the time complexity is O(n^2)

Comment on lines +71 to 73
# # Time complexity: O(n)
# # Space complexity: O(n)
def is_palindrome(s)

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This works, but once again the time complexity is O(n^2)

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2 participants