CareerCup

Traversing the matrix in spiral form and storing the elements in stack should do if extra space is allowed.

import java.util.Stack;

public class AntiSpiralMatrixDisplay {
	
	public static void main(String args[])	{
		
		int arr[][] = new int[][]{ {1,2,3}, {4,5,6} , {7,8,9}};
		int MAX_ROW = 2;
		int MAX_COL = 2;
		Stack<Integer> stack = new Stack<Integer>();
		
		for ( int i = 0, j = 0 ; i <= MAX_ROW && j <= MAX_COL; i++ , j++ , MAX_ROW-- , MAX_COL-- ){
			
			int l,k;
			l=i;k=j;
			for (  ; k <= MAX_COL ; k++)
				stack.push(arr[l][k]);
			
			for ( l = i+1 , k = MAX_COL  ; l <= MAX_ROW ; l++)	
				stack.push(arr[l][k]);
			
			for ( l = MAX_ROW , k = MAX_COL - 1 ; k >= j ; k--  )
				stack.push(arr[l][k]);
			
			for ( l = MAX_ROW - 1 , k = j ; l > i ; l--)
				stack.push(arr[l][k]);
			
			
		}
		
		printAntiSpiralMatrix(stack);
	}

	private static void printAntiSpiralMatrix(Stack<Integer> stack ) {
		// TODO Auto-generated method stub
		while (!stack.empty())
			System.out.print(stack.pop()+ " ");
	}
}

#include <bits/stdc++.h>
using namespace std;
#define R 4
#define C 5

void spiralPrint(int m, int n, int a[R][C])
{
	int i, k = 0, l = 0;
	/* k - starting row index
		m - ending row index
		l - starting column index
		n - ending column index
		i - iterator
	*/
	stack<int> stk;
	while (k <= m && l <= n)
	{
		/* Print the first row from the remaining rows */
		for (i = l; i <= n; ++i)
			stk.push(a[k][i]);
		k++;

		/* Print the last column from the remaining columns */
		for (i = k; i <= m; ++i)
				stk.push(a[i][n]);
		n--;

		/* Print the last row from the remaining rows */
		if ( k <= m)
		{
			for (i = n; i >= l; --i)
				stk.push(a[m][i]);
			m--;
		}

		/* Print the first column from the remaining columns */
		if (l <= n)
		{
			for (i = m; i >= k; --i)
				stk.push(a[i][l]);
			l++; 
		}	 
	}
	
	while(!stk.empty())
	{
		cout << stk.top() << " ";
		stk.pop();
	}
}

/* Driver program to test above functions */
int main()
{
	int mat[R][C] = 
	{
		{1,  2,  3,  4,  5},
		{6,  7,  8,  9,  10},
		{11, 12, 13, 14, 15},
		{16, 17, 18, 19, 20}
	};

	spiralPrint(R - 1, C - 1, mat);
	
	return 0;
}

#include<iostream>
using namespace std;
int main(){
int a[3][3]={{1,2,3},
{4,5,6},
{7,8,9}
};
int i=1,j=1;
while(j<3){
cout<<" "<<a[i][j];
j++;
}
--j;
i++;
while(j>=0){
cout<<" "<<a[i][j];
j--;
}
i--;
j++;
while(i>=0){
cout<<" "<<a[i][j];
i--;
}
++i;
++j;
while(j<3){
cout<<" "<<a[i][j];
j++;
}
}

#include<iostream>
using namespace std;
int main(){
int a[3][3]={{1,2,3},
{4,5,6},
{7,8,9}
};
int i=1,j=1;
while(j<3){
cout<<" "<<a[i][j];
j++;
}
--j;
i++;
while(j>=0){
cout<<" "<<a[i][j];
j--;
}
i--;
j++;
while(i>=0){
cout<<" "<<a[i][j];
i--;
}
++i;
++j;
while(j<3){
cout<<" "<<a[i][j];
j++;
}
}