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class human {
public:
virtual void speak () = 0;
};class daughter : public human
{
public:
void speak () {printf ("I am daughter\n");}
};
class son : public human
{
public:
void speak () {printf ("I am son\n");}
};void main ()
{
human *pchilds[16];
for (int i = 0; i < 16 ; i++)
(rand() > RAND_MAX/2) ? pchilds[i] = new daughter : pchilds[i] = new son;
for (int i = 0; i < 16 ; i++)
pchilds[i]->speak();
delete [] pchilds;
}
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