题解 | #交换变量值#加减法/异或

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();

        //write your code here.......
        //方式1
        // a = a + b;
        // b = a - b;
        // a = a - b;
        //方式2:异或：相同为0，不同为1.
        a = a ^ b;
        b = a ^ b;
        a = a ^ b;



        System.out.println(a+" "+b);
    }
}