How to Solve Top K Frequent Words Problem
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Top K Frequent Words
Given an array of strings words and an integer k, return the k most frequent strings. Return the answer sorted by the frequency from highest to lowest. Sort the words with the same frequency by their ...
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Understanding the Top K Frequent Words Problem
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Problem Statement
Given an array of strings words and an integer k, return the k most frequent strings. Return the answer sorted by the frequency from highest to lowest. Sort the words with the same frequency by their lexicographical order.
Top K Frequent Words
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Examples
words = ["i","love","leetcode","i","love","coding"], k = 2["i","love"]"i" and "love" are the two most frequent words. Note that "i" comes before "love" due to a lower alphabetical order.
words = ["the","day","is","sunny","the","the","the","sunny","is","is"], k = 4["the","is","sunny","day"]"the", "is", "sunny" and "day" are the four most frequent words, with the number of occurrence being 4, 3, 2 and 1 respectively.
Constraints
1 <= words.length <= 5001 <= words[i].length <= 10words[i] consists of lowercase English letters.k is in the range [1, The number of unique words[i]]How Interview Coder Helps with Leetcode Problems
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