- #include<iostream> 
-   
- struct test 
-     { 
-         virtual void print() { std::cout << "I'm the parent" << std::endl; } 
-     }; 
-   
-     struct derived : public test 
-     { 
-         virtual void print() { std::cout << "I'm the derived" << std::endl; } 
-     }; 
-   
-     int main() 
-     { 
-         test* a = new test; 
-         test* b = new derived; 
-   
-         a->print(); 
-         b->print(); 
-   
-         return 0; 
-     } 
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