A class Student has Roll No, Branch, class Internal_exam has sub1marks, sub2 marks, class External_exam has sub1marks and class Result has Total as data members. Write necessary member functions to input and print data. Calculate Internal_exam and External_exam subtotals using their respective member functions. Class Result has a function to calculate Total=internal+ external subtotals. Write a complete program to implement the hierarchy of the classes using virtual base class.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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A class Student has Roll No, Branch, class Internal_exam has sub1marks, sub2
marks, class External_exam has sub1marks and class Result has Total as data
members. Write necessary member functions to input and print data.
Calculate Internal_exam and External_exam subtotals using their respective member
functions.
Class Result has a function to calculate Total=internal+ external subtotals.
Write a complete program to implement the hierarchy of the classes using virtual base
class.

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