414. Third Maximum Number

https://leetcode.com/problems/third-maximum-number

Python

class Solution:
    def thirdMax(self, nums: List[int]) -> int:
        sorted_nums = sorted(list(set(nums)))

        if len(sorted_nums) < 3:
            return max(sorted_nums)

        result = None
        for i in range(3):
            if nums:
                result = sorted_nums.pop()

        return result