ExceptInviteClass, C++ (gcc)

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//g++  7.4.0
//ExceptionInviteClass: Demonstration of more than one catch specification and rethrowing exception

//this code is created by Rezaul Hoque on November 14,2021;contact: jewelmrh@yahoo.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;

#include <iostream>
class InviteList{
public:
int id;
InviteList(int n):id(n){
 if (n==0) 
throw noInvite();
if (n==1)
throw welcome();
if (n==2)
throw limAccess();
}
~InviteList(){}
class noInvite {};
class welcome {};
class limAccess {};
};
int main(){
int k;
std::cout<<"Please give your id:\n";
std::cin>>k;
try
{
  InviteList i(k);
  std::cout<<"Your id is "<<k<<" \n";
 throw;//throwing exception to outside catch blocks
}
catch(InviteList::noInvite)
{
std::cout<< "\nSorry,you’re not in the list!";
}
catch(InviteList::welcome)
{
std::cout<<"\nWelcome, you’re in the list.";
}
catch(InviteList::limAccess)
{
std::cout<<"\nWelcome,but you have limited access!";
}
//catch all exceptions with catch(...) block
catch (...)
{
std::cout<<"\nInvalid id";
}
std::cout<<"\nThank you.";
return 0;
}

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Compilation time: 0.42 sec, absolute running time: 0.15 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,74 sec