蓝桥杯算法提高VIP-剪刀石头布-题解（Java代码）

import java.util.Scanner;

public class Main {

public static void main(String[] args){

Scanner input = new Scanner(System.in);

int a=input.nextInt();

int b=input.nextInt();

int result=a-b;

if(result==2)

result=-1;

else if(result==-2)

result=1;

System.out.println(result);

}

}