4.11. Write a program that read mark and display res grade.

#include<stdio.h> #include<conio.h>
void main ()
int mark;
clrscr();
printf ("Mark= "); scanf("%d", &mark);
if (mark>=80)
printf ("A+");
else if (mark>=70)
printf ("A");
else if (mark>=60) else if (mark>=50)
printf("A-");
printf ("B");
else if (mark>=40) printf("C");
else if (mark>=33) printf("D");
else
printf("F");

 getch ();