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Solution: Top K Frequent Words

Understand how to implement a solution that returns the top K most frequent words by leveraging trie and bucket sort techniques. Explore frequency mapping, organizing words by frequency with tries, and sorting results efficiently to solve common coding interview problems.

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:

  • 11 \leq words.length 100\leq 100

  • 11 \leq words[i].length 10\leq 10

  • 11 \leqk \leq number of unique words in the list

  • words[i] consists of lowercase English letters. ...

Solution