#include<stdio.h>
 
class A
{
public:
A(){ printf(“A”);}
~A(){ printf(“~A”);
};
class B:public A
{
public;
B(){ printf(“B”);}
~B(){ printf(“~B”);}
};
 
int main()
{
A*c = new B[2];
delete[] c;
return 0;
}