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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 utils;

/**
 *
 * @author Fabien Renaud
 */
public abstract class Jam implements Runnable, JamParser {

  protected final String[] lines;
  protected final JamCase[] cases;
  protected final int t;
  private final String filenameInput;
  private final String filenameOutput;
  private final String[] output;
  private final StopWatch timer;
  private int count;

  protected Jam(String filename) {
    this.filenameInput = filename;
    this.filenameOutput = filename.replace(".in", ".out");
    this.count = 0;
    this.lines = File.readAllLines(filenameInput);
    this.timer = new StopWatch();
    this.t = Integer.parseInt(lines[0]);
    this.cases = new JamCase[t];
    this.output = new String[t];
    File.delete(filenameOutput);
  }

  protected final synchronized void appendOutput(int number, String result) {
    output[number - 1] = String.format("Case #%1$d: %2$s", number, result);
    count++;
    if (count == t) {
      timer.stop();
      saveOutput();
    }
  }

  private void saveOutput() {
    if (count != t) {
      System.err.println(String.format("%1$d results are missing. File not saved."));
    } else {
      File.writeAllLines(filenameOutput, output);
      System.out.println("File saved at " + filenameOutput);
      System.out.println("---------- OUTPUT ----------");
      for (String s : output) {
        System.out.println(s);
      }
      System.out.println("--- Processed in " + timer.getElapsedSeconds() + " seconds.");
    }
  }

  @Override
  public final void run() {
    int j;
    count = 0;

    timer.start();
    for (int i = 1; i <= t; i++) {
      j = i - 1;
      cases[j] = getJamCase(i);
      if (cases[j] != null) {
        new Thread(cases[j]).start();
      }
    }
  }
}
