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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 de.at.codejam;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import de.at.codejam.util.AbstractOutputFileWriter;
import de.at.codejam.util.CaseSolver;
import de.at.codejam.util.InputFileParser;
import de.at.codejam.util.StatusListener;
import de.at.codejam.util.TaskStatus;

public abstract class AbstractCodeJamProblemSolver<CASE> implements
		StatusListener {

	private final List<StatusListener> statusListenerList = new ArrayList<StatusListener>();

	private TaskStatus taskStatus = null;

	private CaseSolver<CASE> currentCaseSolver;

	public void solveInputFile(File inputFile, File outputFile) {

		taskStatus = new TaskStatus();

		final InputFileParser<CASE> inputFileParser = createInputFileParser(inputFile);
		final AbstractOutputFileWriter<CASE> outputFileWriter = createOutputFileWriter(outputFile);

		inputFileParser.initialize(taskStatus);
		log(LOGLEVEL_INFO, "Initialized: " + taskStatus);

		Thread caseSolvingProcess = new Thread(new Runnable() {

			@Override
			public void run() {

				taskStatus.setCurrentTaskStatus(TaskStatus.STATUS_RUNNING);

				int i = 0;
				try {

					while (inputFileParser.hasNextCase()) {

						final CASE currentCase = inputFileParser.getNextCase();

						i++;
						taskStatus.setNumberCurrentCase(i);

						String result = solveCase(taskStatus, currentCase);
						log(StatusListener.LOGLEVEL_INFO, result);
						outputFileWriter.appendResult(result);

						try {
							Thread.sleep(50);
						} catch (InterruptedException e) {
						}
					}

					taskStatus.setCurrentTaskStatus(TaskStatus.STATUS_DONE);

				} catch (Exception exc) {

					exc.printStackTrace();

					log(LOGLEVEL_ERROR,
							"Exception while reading / solving cases: "
									+ exc.getMessage());
					taskStatus.setCurrentTaskStatus(TaskStatus.STATUS_ERROR);
				}
			}
		});
		caseSolvingProcess.start();

		Thread progressUpdateProcess = new Thread(new Runnable() {
			@Override
			public void run() {

				while (!taskStatus.equals(TaskStatus.STATUS_DONE)) {

					updateStatus(taskStatus);

					try {
						Thread.sleep(1000);
					} catch (InterruptedException e) {
					}
				}
				updateStatus(taskStatus);
			}
		});
		progressUpdateProcess.start();
	}

	private String solveCase(TaskStatus taskStatus, CASE caseToSolve) {

		if ((null == currentCaseSolver)
				|| !useCaseSolver(currentCaseSolver, caseToSolve)) {
			currentCaseSolver = buildCaseSolver(caseToSolve);
			currentCaseSolver.addStatusListener(this);
		}

		return currentCaseSolver.solveCase(taskStatus, caseToSolve);
	}

	protected abstract boolean useCaseSolver(CaseSolver<CASE> caseSolver,
			CASE caseToSolve);

	protected abstract CaseSolver<CASE> buildCaseSolver(CASE caseToSolve);

	protected abstract InputFileParser<CASE> createInputFileParser(
			File inputFile);

	protected abstract AbstractOutputFileWriter<CASE> createOutputFileWriter(
			File outputFile);

	@Override
	public void updateStatus(TaskStatus taskStatus) {
		for (StatusListener listener : statusListenerList) {
			listener.updateStatus(taskStatus);
		}
	}

	@Override
	public void log(int logLevel, String message) {
		for (StatusListener listener : statusListenerList) {
			listener.log(logLevel, message);
		}
	}

	public void addStatusListener(StatusListener statusListener) {
		statusListenerList.add(statusListener);
	}

	public void removeStatusListener(StatusListener statusListener) {
		statusListenerList.remove(statusListener);
	}
}
