/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

package codezam.exercise.WR1C2012;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import codezam.util.InputFile;

/**
 * Google Code Jam - 2012 RecycledNumbers
 * 
 * Using Frequency analysis method
 * 
 * @author Ryan
 * @since 2012.4.14
 */
public class RecycledNumbers {

	private List lines = new ArrayList();
	
	public RecycledNumbers() {
		String filename = "C:/eclipse/eclipse.test/workspace/CodeZam-Exercise/app/src/codezam/exercise/WR1C2012/C-small-attempt1.in";
		InputFile inputFile = new InputFile();
		inputFile.setFile(filename);

		int numberOfInput = Integer.parseInt(inputFile.readLine());
		
		for (int i = 0; i < numberOfInput; i++) {
			String input = inputFile.readLine();
			lines.add(input);
		}
	}

	public void solve() {
		
		//String output = getOutputForOneLine((String)lines.get(0));
		
		for (int i = 0; i < lines.size(); i++) {
			String output = getOutputForOneLine((String)lines.get(i));

			System.out.println("Case #" + (i + 1) + ": " + output.toLowerCase());
		}
	}

	private String getOutputForOneLine(String line) { 

		String[] lineSplit = line.split(" ");
		
		Long a = new Long(lineSplit[0]);
		Long b = new Long(lineSplit[1]);
		int digit = a.toString().length();
				
		PairNumbers pairNumbers = new PairNumbers();
		
		long from = a.longValue();
		long to = b.longValue();

		int total = 0;
		//System.out.println("from "+a+" to "+b);
		for (long i=from; i<=to; i++) {
			if (i>=449) {
				boolean aa = true;
			}
			String number = new Long(i).toString();
			for (int j=1; j<digit; j++) {
				String checker = number.substring(j,digit)+number.substring(0,j);
				if (!checker.equals(number) && new Long(checker).longValue() >=a && new Long(checker).longValue() <= b 
						&& !pairNumbers.containsKey(number, checker)) {
					pairNumbers.put(number, checker);

					//System.out.print(number+"->"+checker+", ");

					//if (++total%10==0) {
					//	System.out.println();
					//}
				}
			}
		}

		//System.out.println();
		//System.out.println();
		
		return Integer.toString(pairNumbers.size());
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {

		RecycledNumbers question = new RecycledNumbers();

		question.solve();

	}
		
}
