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Grokking the Coding Interview Patterns in Go

Solution: Top K Frequent Elements

Understand how to extract the top k frequent elements from an integer array by building a frequency map and using a min-heap in Go. Learn to optimize the algorithm focusing on time and space efficiency while handling real-world constraints. This lesson helps you apply coding interview patterns to solve frequency-related problems effectively.

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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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