题目有问题

#include<iostream>
using namespace std;
int main(){
    int a,b;
    cin>>a>>b;
    char c;
    cin>>c;
    switch(c){
        case '+':cout<<a+b;break;
        case '-':cout<<a-b;break;
        case '*':cout<<a*b;break;
        case '/':
            if(b==0){
                cout<<"Divided by zero!";break;
            }else{
                cout<<a/b;break;
            }
        default:cout<<"Invalid operator!";
    }       
    return 0;
}