2025-08-17 16:56:52 +0000 UTC

class Solution:
    def divideArray(self, nums: List[int]) -> bool:
        nums.sort()
        prev = nums[0]
        count = 1
        for num in nums[1:]:
            if num == prev:
                count += 1
            elif count % 2 != 0:
                return False
            else:
                count = 1
                prev = num
        return count % 2 == 0