main.cpp

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#include <iostream>
#include <typeinfo>
#include <cxxabi.h>
using namespace std;

int main()
{
    const int& x = 3;
    int y = 3;
    decltype(x) z = x;

    cout << typeid(z).name() << endl;
    cout << &x << endl;
    cout << &z << endl;


    return 0;
}