LeetCode 371. 两整数之和 Sum of Two Integers

Posted 2020-12-06 zsy-blog

 

 不断更新值和进位。

class Solution {
public:
    int getSum(int a, int b) {
        return b == 0 ? a : getSum(a ^ b, ((unsigned int)a & b) << 1);
    }
};