指出这个程序存在什么问题何在啊
#include <iostream>
using namespace std;
int main()
{
int code_enter;
const int code=8888;
cout<"Enter your pass code."<<endl;
cin>>code_enter;
if(code_enter!=code)
{
cout<<"your are wrong.Enter it again."<<endl;
cin>>code_enter;
}
if(code_enter==code)
{
cout<"Access approved."<<endl;
cout<<"welcome"<<endl;
}
else
cout<<"Access denied."<<endl;
return 0;
}