#include<iostream.h>
#include<conio.h>
#include<stdio.h>
main()
 {
 int n,m,i=0,j=0,k=0,l=0,p=0,q=1,r=0,s=1,a=40,b=25,ar[100];
 clrscr();
 cout<<"enter n:";
 cin>>n;
 printf("enter array elements:");
 for(m=0;m<n;m++)
 scanf("%d",&ar[m]);
 gotoxy(a,b);
 m=0;
 printf("%d",ar[m++]);
 while(m<n)
 {
 while(i<=j)
 {
 i++;
 a+=4;
 gotoxy(a,b);
 printf("%d",ar[m++]);
   if(m>=n)
   goto next;
   }

 while(k<=l)
 {   k++;
  b+=4;
 gotoxy(a,b);
 printf("%d",ar[m++]);
 if(m>=n)
 goto next;
 }
 while(p<=q)
 {
 p++;
 a-=4;
 gotoxy(a,b);
 printf("%d",ar[m++]);
 if(m>=n)
 goto next;

 }
 while(r<=s)
 {
  r++;
  b-=4;
  gotoxy(a,b);
  printf("%d",ar[m++]);
 if(m>=n)
 goto next;
 }
   j+=2;
   l+=2;
   q+=2;
   s+=2;
   i=0;
   k=0;
   p=0;
   r=0;

   }
   next:getch();
   return 0;
   }

#include<stdio.h>
#include<conio.h>
#define n 4
void main()
{
	int A[n][n]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};
	int min=0,max=n-1,i,j;
	clrscr();
	while(min<max)
	{
		for(i=min;i<=max;i++)
			printf("%d,",A[min][i]);
		for(i=min+1;i<=max;i++)
			printf("%d,",A[i][max]);
		for(i=max-1;i>=min;i--)
			printf("%d,",A[max][i]);
		for(i=max-1;i>min;i--)
			printf("%d,",A[i][min]);
		min++;
		max--;
	}
	getch();
}