Multilevel Inheritance Program in C++

OUTPUT OF MULTILEVEL INHERITANCE

Program:--

#include<iostream.h>
#include<conio.h>
class student
{
public:
void display()
{
 cout<<"This is the 1st Class"<<endl;
}
};
 class result:public student
{
public:
 void display1()
{
cout<<"This is the 2nd Class"<<endl;
}

} ;
 class marks :public result
{
  public:
  void getdata()
{
cout<<"This is the 3rd Class";
}
};
void main()
{
    clrscr();
    marks s;
    s.display();
    s.display1();
    s.getdata();
     getch();
}

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