python/C++课程/第十四课位运算训练精讲/p164.cpp

#include<iostream>
using namespace std;
int main()
{
	int a, b, c, d;
	cin >> a >> b;
	do {
		c = a ^ b;
		d = (a & b) << 1;
		a = c;
		b = d;
	} while (b != 0);
	cout << a;
	return 0;
}