Solution: Top K Frequent Words
Explore how to solve the problem of finding the top k most frequent words by combining trie data structures with bucket sort. Understand how to count word frequencies, organize words by frequency, and retrieve the top k words sorted by frequency and lexicographical order efficiently. This lesson helps you implement an optimal solution with O(N) time complexity leveraging tries and bucket sorting techniques.
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Statement
Given a list of strings words and an integer k, return the k most frequently occurring strings.
Note: The result should be sorted in descending order based on frequency. If multiple words have the same frequency, they should be sorted in lexicographical order.
Constraints:
words.lengthwords[i].lengthknumber of unique words in the list words[i]consists of lowercase English letters. ...