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HashPractice Paper Karla T. #49
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Overall nice work Karla, you hit the main learning goals here. I did make comments on time/space complexity.
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: ? | ||
Time Complexity: O(n) | ||
Space Complexity: O(1) | ||
""" |
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👍 However space complexity is O(n) since you're building a dictionary of all the words.
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(n log n) | ||
Space Complexity: O(n) | ||
""" |
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👍 I would also say that the time complexity is O(nk) since you have the nested loop in lines 37 - 40 (max has to loop through the list).
Hash Table Practice
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Comprehension Questions