2025-07-25 06:50:01 +0000 UTC

class Solution:
    def maxSum(self, nums: List[int]) -> int:
        if len(nums) == 1:
            return nums[0]
        nums.sort()
        if nums[-1] <= 0:
            return nums[-1]
        res = 0
        if nums[0] > 0:
            res = nums[0]
        for i, num in enumerate(nums[1:], 1):
            if num <= 0 or num == nums[i - 1]:
                continue
            res += num
        return res