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Grokking the Coding Interview Patterns in C++

Top K Frequent Elements

Explore how to find the top K frequent elements in an array by understanding frequency calculation and heap usage. Practice implementing efficient solutions and grasp problem constraints to solve questions confidently.

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Statement

Given an array of integers, arr, and an integer, k, return the kk most frequent elements.

Note: You can return the answer in any order.

Constraints:

  • 11 ≤\leq
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