tut31a.cpp

#include<iostream>
using namespace std; 
 class Student{
    protected: 
    int roll_no;
    public:
    void set_number(int a){
        roll_no=a;
    }
   void print_number(void){
    cout<<"Your roll no. is"<<roll_no<<endl;
   }
 };
 class Test: virtual public Student{
    protected:
    float maths, physics;
    public:
    void set_marks(float m1, float m2){
    maths=m1;
    physics=m2;
    }
    void print_marks(void){
        cout<<"You have obtained:"<<endl
        <<"Maths:"<< maths<<endl
        <<"Physics:"<<physics<<endl;
    }
 };
 class Sports: virtual public Student{
  protected:
  float score;
  public:
  void set_score(float sc){
  score = sc;
  }
  void print_score( void){
    cout<<"Your PT score is"<<score<<endl;
  }

 };
 class Result:public Test,public Sports{
    private:
    float total;
    public:
    void display( void){
        total=maths+physics+score;
        print_number();
        print_marks();
        print_score();
        cout<<"your total score is:"<<total<<endl;
    }
 };

 int main(){
    Result arjun;
    arjun.set_number(1000);
    arjun.set_marks(78.9, 99.5);
    arjun.set_score(9);
    arjun.display();
    return 0;}