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  1. #include <iostream>
  2. #include <list>
  3. using namespace std;
  4.  
  5. template<class T>
  6. class MyList : public list<T> {
  7. public:
  8. 	void addInMiddle(const T&);
  9. 	void printList();
  10. };
  11.  
  12. template<class T>
  13. void MyList<T>::addInMiddle(const T& x) {
  14.  
  15. 	typename list<T>::iterator it = this->begin();
  16.  
  17. 	int location = (this->size()) / 2;     //where we want to insert the new element
  18. 	for (int i = 0; i < location; i++) {
  19. 		it++;
  20. 	}
  21. 	this->insert(it,x);
  22. }
  23.  
  24. template<class T>
  25. void MyList<T>::printList() {
  26. 	for (const auto &elem : *this) {
  27. 		cout << elem << " ";
  28. 	}
  29. 	cout << endl;
  30. }
  31.  
  32. int main()
  33. {
  34. 	MyList<int> list1;
  35. 	list1.push_back(1);
  36. 	list1.push_back(2);
  37. 	list1.push_back(3);
  38. 	list1.push_back(4);
  39. 	list1.addInMiddle(5);
  40. 	list1.printList();
  41. 	return 0;
  42. }
Success #stdin #stdout 0.01s 5532KB
comments (?)
stdin 
Standard input is empty
stdout 
1 2 5 3 4
https://ideone.com/mtEJ9q
language:
C++ 4.3.2 (gcc-4.3.2)
created:
2 years ago
visibility:
public

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