371. 两整数之和

1. 两数之和

同剑指 Offer 65. 不用加减乘除做加法 - 力扣（LeetCode） (leetcode-cn.com)

class Solution {
public:
    int getSum(int a, int b) {
        while(b)
        {
            int c = (unsigned int)(a & b) << 1;
            a ^= b;
            b = c;
        }
        return a;
    }
};