#include "iostream.h"
#include "conio.h"
class grade
{
private:
int r,m[3];
float p;
public:
void accept ()
{
cout << "Enter student details\n\n";
cout << "Enter the Roll Number: ";
cin >> r;
cout << "Enter marks of subject 1: ";
cin >> m[0];
cout << "Enter marks of subject 2: ";
cin >> m[1];
cout << "Enter marks of subject 3: ";
cin >> m[2];
}
void cal ();
};
void grade :: cal ()
{
clrscr ();
cout << "Roll Number:\t" << r;
p = (m[0] + m[1] + m[2]) / 3;
cout << endl << "Percentage:\t" << p << "%" << endl;
if (p < 40.00)
cout << "Grade:\t\tF";
else if (p >= 40.00 && p < 60.00)
cout << "Grade:\t\tB";
else if (p >= 60.00 && p < 75.00)
cout << "Grade:\t\tA";
else if (p >= 75.00 && p < 100.00)
cout << "Grade:\t\tDistinction";
else
cout << "Invalid Entries";
}
void main ()
{
clrscr ();
grade G;
G.accept ();
G.cal ();
getch ();
}
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