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Top K Frequent Elements

Medium

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Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order.

Sample Input:

[1, 1, 1, 2, 2, 3], 2

Sample Output:

[1, 2]

Hints

Hint 1

Count frequency of each element

Hint 2

Sort by frequency or use bucket sort

Hint 3

Return top k elements

Code Editor

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