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  1. #include <list>
  2. #include <iostream>
  3. #include <memory>
  4. using namespace std;
  5.  
  6. class Person {
  7. public:
  8. 	virtual ~Person() = default;
  9. 	virtual void talk()=0;
  10. };
  11.  
  12. class Student : public Person {
  13. public:
  14. 	void talk() {
  15. 		cout << "Teach me!\n";
  16. 	}
  17. };
  18.  
  19. class Teacher : public Person {
  20. 	public:
  21. 	void talk() {
  22. 		cout << "Listen!\n";
  23. 	}
  24. };
  25.  
  26. int main() {
  27. 	list<std::unique_ptr<Person>> people;
  28. 	people.push_back(unique_ptr<Person>(new Student()));
  29. 	people.push_back(unique_ptr<Person>(new Teacher()));
  30.  
  31. 	for (auto& p : people) {
  32. 		p->talk();
  33. 	}
  34.  
  35. 	return 0;
  36. }
Success #stdin #stdout 0s 4548KB
comments (?)
stdin 
Standard input is empty
stdout 
Teach me!
Listen!
https://ideone.com/w3YGzz
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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