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Solution: Third Maximum Number

Explore how to determine the third distinct maximum element in an integer array by using a min heap and set. Understand how to efficiently maintain top three values while handling duplicates, and learn the time and space complexity of this approach in coding interviews.

Statement

Given an integer array nums, determine and return the third distinct maximum element in the array. If the array contains fewer than three distinct elements, return the maximum element instead.

Constraints:

  • 1<=1 <= nums.length <=103<= 10^3 ...