UVA Problem ID 352 (Seasonal War)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class Main {
	public static void main (String args[]) throws IOException
	{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		String input;
		StringBuilder sb=new StringBuilder(1000);
		int imageNo=0;
		while((input=br.readLine())!=null)
		{
			imageNo++;
			int dimention=Integer.parseInt(input.trim());
			
			char image[][]=new char[dimention][dimention];
			
			for (int i = 0; i < dimention; i++) {
				input=br.readLine();
				for (int j = 0; j < dimention; j++) {
					image[i][j]=input.charAt(j);
				}	
			}
			int no_of_eagle=0;
			for(int i=0;i=0)
		{
			if(column-1>=0 && image[row-1][column-1]=='1')
				floodfill(image,row-1, column-1,dimention);
			if(column+1=0 && image[row+1][column-1]=='1')
				floodfill(image,row+1, column-1,dimention);
			if(column+1=0 && image[row][column-1]=='1')
			floodfill(image,row, column-1,dimention);
		if(column+1