不使用第三个变量交换两个int类型变量的值

#include <iostream>
using namespace std;
int main(){
	//不使用第三个变量交换两个int类型变量的值
	int a = 5, b = 10;
	a = a^b;
	b = a^b;
	a = a^b;
	cout << a << endl << b << endl;
	a = a + b;
	b = a - b;
	a = a - b;
	cout << a << endl << b << endl;
	return 0;
}