#include <iostream>
using namespace std;
class Base {
public:
void display() {
foo();
}
virtual void foo() {
cout << "Base.foo()" << endl;
}
};
class Derived : public Base {
public:
void foo() {
cout << "Derived.foo()" << endl;
}
};
int main() {
Derived* derived = new Derived();
derived->display();
}
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