Program to understand dynamic allocation of memory

#include<stdio.h>
#include<stdlib.h>
main( )
{
int *p, n, i;
printf("Enter the number of integers to be entered : ");
scanf("%d", &n);
p = (int *)malloc(n * sizeof(int));
if(p==NULL)
{
printf("Memory not available\n");
exit(1);
}
for(i=0; i<n; i++)
{
printf("Enter an integer : ");
scanf("%d", p+i);
}
for(i=0; i<n; i++)
printf("%d\t", *(p+i));
}