/*
 * 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 nl.maartenvangrootel.googlecodejam.qualifier.recycling;

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

/**
 * Hello world!
 * 
 */
public class Recycling {
	private File file;

	private static Pattern pattern = Pattern.compile("[\\ ]");

	public Recycling(String filename) {
		if (filename == null)
			throw new IllegalArgumentException("filename should not be null");

		file = new File(filename);
		if (!(file.exists() && file.isFile()))
			throw new IllegalArgumentException(String.format(
					"'%s' does not exist or is not a file.", filename));

	}

	private BufferedReader getReader() {
		BufferedReader reader = null;
		try {
			FileReader stream = new FileReader(file);
			reader = new BufferedReader(stream);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}

		return reader;
	}

	public String calculateResult() {
		BufferedReader reader = getReader();

		StringBuilder builder = new StringBuilder();
		try {
			int numberOfCases = Integer.parseInt(reader.readLine());
			int i = 1;
			String line;
			while ((line = reader.readLine()) != null) {
				if (i > 1) {
					builder.append("\n");
				}
				builder.append("Case #");
				builder.append(i);
				builder.append(": ");
				builder.append(parseLine2(line));
				i++;
			}
		} catch (IOException e) {
			e.printStackTrace();
		}

		return builder.toString();
	}

	public static long parseLine2(String line) {
		String[] input = pattern.split(line);
		int length = input[0].length();
		boolean even = length % 2 == 0;

		long mod = (long) Math.pow(10, (length / 2));

		long A = Integer.parseInt(input[0]);
		long B = Integer.parseInt(input[1]);
		long cnt = 0;
		long compensation = 0;
		for (long n = A; n <= B; n++) {
			String strN = String.valueOf(n);
			for (int i = length - 1; i > 0; i--) {
				for (int j = length; j > i; j--) {
					String deel1 = strN.substring(i, j);
					String deel2 = strN.substring(0, i);
					String strM = deel1 + deel2;
					if ("".equals(strM))
						continue;

					long m = Long.parseLong(strM);

					if (m >= A && m <= B && n < m) {
						if (even && n % mod == n / mod) {
							compensation++;
						}
						cnt++;
					}
				}
			}
		}

		return cnt - compensation / 2;
	}

	public static void main(String[] args) {
		Recycling starter = new Recycling("src/main/resources/small.txt");
		String result = starter.calculateResult();

		System.out.println(result);
	}
}
