Курсовая работа: Списки стеки очереди в C

private:

int inf;

public:

virtual void prin(){cout<<"->class A";}

a(){inf=13;}

~a(){}

};

class b:public fazer{

private:

char inf;

public:

virtual void prin(){cout<<"->class B";}

b(){inf='A';}

~b(){}

};

class c:public fazer{

private:

double inf;

public:

virtual void prin(){cout<<"->class C";}

c(){inf=3.12;}

~c(){}

};

int main()

{

fazer *head=new fazer;

int ch=1;

cout<<"1: Dodatu element class A do stack"<<endl;

cout<<"2: Dodatu element class B do stack"<<endl;