Python Solution


  • 2
    T
    def singleNumber(self, nums):
        ab = m = reduce(operator.xor, nums)  # a ^ b
        m &= -m  # bit hack, isolate the rightmost 1-bit
        a = reduce(operator.xor, (n for n in nums if n & m))
        return [a, ab ^ a]  # if a & m then not b & m

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