Count Elements With Maximum Frequency

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Question

Approach

I count how many times each number appears in the array using a frequency counter (like collections.Counter). Then I find the maximum frequency among all elements. Finally, I add up the frequencies of all elements that appear with this maximum frequency. This gives the total number of elements in the array that have the maximum frequency.

Implementation

class Solution:
    def maxFrequencyElements(self, nums: List[int]) -> int:
        freq = Counter(nums)                
        max_freq = max(freq.values())   
        return sum(v for v in freq.values() if v == max_freq) 

Complexities

• Time: O(n)
• Space: O(n)