两个数的简单计算器 (10分)

#include<stdio.h>
int main()
{
    int x,y;
    char n;
    scanf("%d %c %d",&x,&n,&y);
    switch(n){
    case'+':printf("%d\n",x+y);break;
    case'-':printf("%d\n",x-y);break;
    case'*':printf("%d\n",x*y);break;
    case'/':printf("%d\n",x/y);break;
    case'%':printf("%d\n",x%y);break;
    default:printf("ERROR");break;}

}