347. Top K Frequent Elements

Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order.

 

Example:

Input: nums = [1,1,1,2,2,3], k = 2
Output: [1,2]


def topKFrequent(self, nums: List[int], k: int):
       
    freq = Counter(nums)
   
    return heapq.nlargest(k, freq.keys(), key=freq.get)
   

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