const int MAX=10;

class AList{

public :

AList();

void Retrieve(int k, &x, int bool &success);

\ etrieve the kth element and save it in x

void Delete(int k, int &x, bool &success);

\\ delete element at the position with index k and save it in x

void Insert(int k, int x, bool &success);

\\ insert element x at the position with index k

private :

int list[MAX];

int size;

};

AList aList;

3.Revise the specifications of the above list to make insertion, deletion, retrieval operations are at the end of the list; and implement these new methods.