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

package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

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();

	}
		
}
