#371

Sum of Two Integers

medium· Bit Manipulationruns: 0

Given two integers a and b, return the sum of the two integers without using the operators + or -.

wpm 0acc 100%time 0:000 / 235

class Solution:
    def getSum(self, a: int, b: int) -> int:
        mask = 0xFFFFFFFF
        while (b & mask) != 0:
            carry = (a & b) << 1
            a = a ^ b
            b = carry
        return a & mask if b > 0 else a

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