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 QualificationRound;

	import java.io.BufferedReader;
	import java.io.File;
	import java.io.FileNotFoundException;
	import java.io.FileReader;
	import java.io.IOException;
	import java.util.ArrayList;
import java.util.Dictionary;
import java.util.regex.Pattern;

	public class C
	{
		public C()
		{

		}
		public int shiftNumber(int num,int NumOfDigints)
		{		
			int tempDigit = num % 10;
			num = num/10;
			for (int i=0;i<(NumOfDigints-1); i++)
			{
				tempDigit *= 10;
			}
			tempDigit += num;
			return tempDigit;
		}
		public int solveLine(String in)
		{
			String[] input = in.split(" ");
			int A = Integer.parseInt(input[0]); //N - number of googlers
			int B = Integer.parseInt(input[1]); //S - suprising results
			int numberOfRecycledNumbers = 0;
			for (int i=A; i<=B; i++)
			{
				int shifted = i;
				int tempNum = i;
				int NumOfDigints = 0;
				while (tempNum > 0)
				{
					NumOfDigints++;
					tempNum /= 10;
				}
				do
				{
					shifted = shiftNumber(shifted,NumOfDigints);
					if ((shifted > i)&& (shifted<=B))
					{
						numberOfRecycledNumbers++;
					}
				}while(shifted != i);
			}
			return numberOfRecycledNumbers;
		}
		
		
				
		public static void calcFromFile(String fileName)
		{
		      
				File file = new File(fileName);
		        BufferedReader reader = null;

		        try {
		            reader = new BufferedReader(new FileReader(file));
		            String sentence = null;
		            // repeat until all lines is read
		            int numOfLine = 1;
		            C q3 = new C();
		            sentence = reader.readLine();
		       
		            	//Read the n test cases
		            	while ((sentence = reader.readLine()) != null) 
			            {
		            		System.out.println("Case #" + numOfLine++ + ": "+q3.solveLine(sentence));
			            }

		            	

		        } catch (FileNotFoundException e) {
		            e.printStackTrace();
		        } catch (IOException e) {
		            e.printStackTrace();
		        } finally {
		            try {
		                if (reader != null) {
		                    reader.close();
		                }
		            } catch (IOException e) {
		                e.printStackTrace();
		            }
		        }
		}
	}


