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Problem: Top K Frequent Elements

Explore how to find the top k most frequent elements in an integer array by using a frequency map and a min heap in C#. Learn the process of frequency counting, maintaining a heap of size k, and extracting results with improved runtime efficiency compared to full sorting.

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:

  • 11 \leq nums.length 105\leq 10^5

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

  • ...