class Solution {
public:
int aplusb(int a, int b) {
if(a==0)return b;
if(b==0)return a;
int x1 = a^b;
int x2 = (a&b)<<1;
return aplusb(x1,x2);
}
};
A+B 问题
阳光洒满花海,爱情铺满心间。
class Solution {
public:
int aplusb(int a, int b) {
if(a==0)return b;
if(b==0)return a;
int x1 = a^b;
int x2 = (a&b)<<1;
return aplusb(x1,x2);
}
};