题解 | 简单运算

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();
        scanner.close();

        //write your code here......
        if(a < b){
            a = a + b;// a+b
            b = a - b;// a
            a = a - b;// a + b - b
        }

        System.out.println((a + b) + " " +  (a - b) + " " +   (a * b) + " " +   (a / b) + " " +  (a % b));
    }
}