011. Write a program to accept roll no and marks of 3 subjects of a student, Calculate total of 3 subjects and average in C language

#include<stdio.h> 
#include<conio.h>  
main()
{
  int roll_no,m1,m2,m3,total;
  float average;
  clrscr();
  printf("Enter roll number : ");
  scanf("%d",&roll_no);
  printf("Enter marks 1 : "); 
  scanf("%d",&m1);
  printf("Enter marks 2 : ");
  scanf("%d",&m2);
  printf("Enter marks 3 : ");
  scanf("%d",&m3);
  total=m1+m2+m3;
  average=total/3.0;
  printf("\nStudent Roll Number : %d",roll_no);
  printf("\nMarks 1 : %d",m1);
  printf("\nMarks 2 : %d",m2);
  printf("\nMarks 3 : %d",m3);
  printf("\nTotal : %d ",total);
  printf("\nAverage : %f ",average);
  getch();
}