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Grokking the Coding Interview Patterns in Go

Solution: Top K Frequent Elements

Explore how to identify the top K frequent elements in an integer array by implementing a frequency map combined with a min-heap. Understand how to optimize the solution to achieve efficient time and space complexity using Go, enabling you to select the most frequent elements 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 arr.length ≤\leq 10310^{3}
  • −10−4-10^{-4} ≤\leq arr[i] ≤\leq 10410^{4}
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