Method singleNumber

Array/SingleNumber.py:33–42

:type nums: List[int] :rtype: int

(self, nums)

class Solution(object):
    def singleNumber(self, nums):
        """
        :type nums: List[int]
        :rtype: int
        """
        
        for i in range(1, len(nums)):
            nums[i] = nums[i] ^ nums[i-1]
        
        return nums[-1]