题解 | 变幻莫测
变幻莫测
https://www.nowcoder.com/practice/5e702b6c7c114e64b5db4650d0ce0051
#include <stdio.h>
int main(){
int k=-1;
int x,y;
scanf("%d %d",&x,&y);
if(x==y)
k=0;
if(x==0&&y!=0)
k=2;
if(x!=0&&y==0)
k=1;
if(x+y==0&&x!=0)
k=3;
printf("%d",k);
}
