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#include <typeinfo> // !important
#include <iostream>
using namespace std;
int main()
{
int a = 5;
cout<< typeid(a); // i: int, f: float, b: booleen...
return 0;
}
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#include<iostream>
using namespace std;
main()
{
auto variable = 45;
cout << typeid(variable).name() << endl;
}