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main.cpp

#include <iostream> class Base { public: virtual ~Base() = default; virtual void execute() const { std::cout << "Base::execute()\n"; } }; class Derived : public Base { public: virtual void execute() const override { std::cout << "Derived::execute()\n"; } }; void process(Base *b) { Base *a = new Base(*b); a->execute(); delete a; } int main() { Derived d; process(&d); }

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