To insert an array into the list

#include<stdio.h>
#include<conio.h>
void main()
{
int i,k,n,num=0;
int a[20];
clrscr();
printf("enter the number of elements");
scanf("%d",&n);
printf("enter the value");
for(i=1;i<=n;i++)
{
scanf("%d",&a[i]);
}
printf("enter the position on which you want to insert");
scanf("%d",&k);
printf("enter the value which you want to insert");
scanf("%d",&num);
for(i=n;i>=k;i--)
{
a[i+1]=a[i];
}
a[k]=num;
n=n+1;
for(i=1;i<=n;i++)
{
printf("%d",a[i]);
}
getch();
}