Input number,Output average,sum etc.

#include<stdio.h>

#include<conio.h>

void main()

{   clrscr();

    int a[100],i,j,sum=0;

    float avg,n;

    printf("Input number of students=");

    scanf("%f",&n);

    //input section

    for(i=0;i<n;i++)

     {  scanf("%d",&a[i]);

     }

    //output section

    for(i=0;i<n;i++)

     {  printf(" %d",a[i]);}

    //sum section

     for(i=0;i<n;i++)

      {  sum=sum+a[i];  }

     //average section

     avg=sum/n;

     printf("\n sum=%d avg=%f",sum,avg);

    getch();

}