347. Top K Frequent Elements LeetCode Solution | Easy Approach

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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 1:

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

Example 2:

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

Constraints:

  • 1 <= nums.length <= 105
  • k is in the range [1, the number of unique elements in the array].
  • It is guaranteed that the answer is unique.

Top K Frequent Elements Solutions

Time: O(n)
Space: O(n)

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