692. Top K Frequent Words

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Return the k most frequent words in words, sorted from most to least frequent. Words with the same frequency are sorted in lexicographical order.

Example

words = ["i","love","leetcode","i","love","coding"], k = 2  ->  ["i","love"]

Constraints

• 1 <= words.length <= 500, 1 <= words[i].length <= 10
• words[i] consists of lowercase English letters
• 1 <= k <= number of distinct words
• Follow-up: O(n log k) time