package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

package googleJam;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;

public class RecycledNumbers 
{

	public static void main(String[] args) 
	{
		Scanner scan = null;
		try
		{
			scan = new Scanner(new File(args[0]));
		}
		catch (FileNotFoundException e)
		{
			System.err.println("File not found!");
			return;
		}
		if (!scan.hasNext())
		{
			System.err.println("Nothing in File!");
			return;
		}
		int testCases = Integer.parseInt(scan.nextLine());
		int lower;
		int upper;
		int move;
		int d;
		int total;
		int zeroes;
		int num = 1;
		int first;
		HashSet<Integer> set;
		while(scan.hasNext())
		{
			System.out.print("Case #" + num + ": ");
			total = 0;
			lower = scan.nextInt();
			upper = scan.nextInt();
			for (int x = lower; x <= (upper); x++)
			{
				set = new HashSet<Integer>();
				zeroes = 1;
				move = x;
				while (move > 9)
				{
					move = move/10;
					zeroes = zeroes * 10;
				}
				int limit = zeroes;
				for(int n = 10; n < (limit*10); n = n * 10)
				{

					move = x/n;
					d = x % n;
					d = d * zeroes;
					d = d + move;
					zeroes = zeroes / 10;
					if (d < x && d >= lower && !set.contains(d) && d > 9)
					{
						total++;
						//System.out.println(d + " , " + x);
						set.add(d);
					}
				}
			}
			num++;
			System.out.print(total);
			if (scan.hasNext())
			{
				System.out.println();				
			}
		}
	}

}
