Q. Calculating grades of a student ?

THE OUTPUT WOULD BE

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
class A
{ int r,p;
char s[100];
public:
inline void B()
{ cout<<"Enter your name:";
 gets(s);
 cout<<"Enter your roll number:";
 cin>>r;
 cout<<"Enter your percentage:";
 cin>>p;
}
inline void C()
{ if(p<=40)
 cout<<"Your grade is D\n";
 if(p>40&&p<=60)
 cout<<"Your grade is C\n";
 if(p>60&&p<=80)
 cout<<"Your grade is B\n";
 if(p>80)
 cout<<"Your grade is A\n";
}
};
void main()
{       int i;
clrscr();
A obj[5];
for(i=0;i<5;i++)
{ obj[i].B();
 obj[i].C();
}
getch();
}