C Program insert items in arrary

#include
#include
void main()
{
int a[20],n,i,p,e;
clrscr();
printf("Enter limit of array");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
printf("\n a[%d]=",i);
scanf("%d",&a[i]);
}
printf("On which position u want to insert element");
scanf("%d",&p);
printf("Insert element:");
scanf("%d",&e);
for(i=n+1;i>p;i--)
{
a[i]=a[i-1];
}
a[p]=e;
n=n+1;
printf("New array list:");
for(i=1;i<=n;i++)
{
printf("\n%d",a[i]);
}
getch();
}