Program for Pointer array

//add n elements pointer
#include<stdio.h>
void main()
{
  int n,i,*data,sum=0;
 printf("Enter no of elements in the Pointer:");
 scanf("%d",&n);
 data=(int *)malloc(n*sizeof(int));
 for(i=0;i<n;i++)
{
  printf("Enter %d number:",i+1);
  scanf("%d",&data[i]);
  sum+=data[i];
  free(data);
 }
 printf("\nsum=%d",sum);
}