Gloria Scissors #42
Open
Gloria Scissors #42
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
CheezItMan
reviewed
Jan 21, 2022
Comment on lines
22
to
+28
| def grouped_anagrams(strings): | ||
| """ This method will return an array of arrays. | ||
| Each subarray will have strings which are anagrams of each other | ||
| Time Complexity: ? | ||
| Space Complexity: ? | ||
| """ | ||
| pass | ||
|
|
||
| Time Complexity: O(n) checking each word | ||
| Space Complexity: O(n) at worse case might have to create a node | ||
| """ |
There was a problem hiding this comment.
👍 , The time complexity is O(n) assuming the words are of limited length like real English words (no word is longer than so many characters) Otherwise it would be O(nm) where m is the word length.
|
|
||
| # Time and Space O(n) might need to append all the values | ||
| my_sorted_list = sorted(frequent_elements.values(),reverse=True) |
There was a problem hiding this comment.
Since you're sorting here that would be O(n log n)
| if value in numbers: | ||
| k_list.append(key) | ||
| #after you matchremove from numbers so it doesn't match twice | ||
| numbers.remove(value) |
There was a problem hiding this comment.
Note that removing a value from an array is an O(n) operation and this is in a loop...
Comment on lines
59
to
+63
| def top_k_frequent_elements(nums, k): | ||
| """ This method will return the k most common elements | ||
| In the case of a tie it will select the first occuring element. | ||
| Time Complexity: ? | ||
| Space Complexity: ? | ||
| Time Complexity: O(nlogn) | ||
| Space Complexity: O(logn) |
There was a problem hiding this comment.
👍 This works, but see my notes on time/space complexity.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Hash Table Practice
Congratulations! You're submitting your assignment!
Comprehension Questions