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Learn Data Structures and Algorithms in Go

Problem: Top K Frequent Elements

Explore how to identify the top K frequent elements in an integer array by counting frequencies and maintaining a min heap of size K. Learn to implement this efficient solution in Go that runs in O(n log k) time and uses a frequency map and heap operations.

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Statement

You are given an integer array nums and an integer k. Your task is to find the k elements that appear most frequently in nums. The result may be returned in any order.

Constraints:

  • 1≤1 \leq nums.length ≤105\leq 10^5

  • −104≤-10^4 \leq nums[i] ≤104\leq 10^4

  • k is in the range ...