C语言RE

#include<stdio.h>
int main()
{
    int x,y;
    char c;
    scanf("%d%d %c",&x,&y,&c);
    switch (c){
    case '+':printf("%d",x+y);break;
    case '-':printf("%d",x-y);break;
    case '*':printf("%d",x*y);break;
    case '/':
        if(y==0) printf("Divided by zero!");
    printf("%d",x/y);break;
    default:printf("Invalid operator!");
    }
    return 0;
}

在自己的编译器可以运行，提交会RE，应该怎么处理，谢谢