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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 codejem;

import java.io.*;
import java.util.HashSet;
import java.util.Set;

public class RecycleNumber {
    public static void main(String[] args) throws IOException {
        InputStream is;
        if (args.length > 0) {
            is = new FileInputStream(args[0]);
        }else{
            is = System.in;
        }

        BufferedReader inputReader = new BufferedReader(new InputStreamReader(is));
        String firstLine = inputReader.readLine();
        int count_of_cases = Integer.parseInt(firstLine);

        for (int idx_of_case = 1; idx_of_case <= count_of_cases; idx_of_case++) {
            String caseLine = inputReader.readLine();
            String[] numbers = caseLine.split(" ");
            int start = Integer.parseInt(numbers[0]);
            int end = Integer.parseInt(numbers[1]);
            int count = count_of_recyclable(start, end);

            System.out.println(String.format("Case #%d: %d", idx_of_case, count));
        }

    }

    public static int count_of_recyclable(int start, int end) {
        int count = 0;

        for (int number = start; number <= end; number++) {
            char[] chars = int_to_char_array(number);
            char[] max_number = int_to_char_array(end);

            Set<String> matchNumbers = new HashSet<String>();
            for (int chars_to_move = 1; chars_to_move < chars.length; chars_to_move++) {
                char[] rotated_chars = rotated_chars(chars, chars_to_move);

                if (rotated_chars[0] != '0'
                        && not_greater_than_number(rotated_chars, max_number)
                        && less_than_number(chars, rotated_chars)) {

                    matchNumbers.add(String.valueOf(rotated_chars));
                }
            }
            count+= matchNumbers.size();
        }

        return count;
    }

    public static boolean not_greater_than_number(char[] rotated_chars, char[] max_number) {
        for (int i = 0; i < rotated_chars.length; i++) {
            if (max_number[i] > rotated_chars[i]) {
                return true;
            }

            if (rotated_chars[i] > max_number[i]) {
                return false;
            }
        }

        return true;
    }

    public static boolean less_than_number(char[] rotated_chars, char[] max_number) {
        for (int i = 0; i < rotated_chars.length; i++) {
            if (max_number[i] > rotated_chars[i]) {
                return true;
            }

            if (rotated_chars[i] > max_number[i]) {
                return false;
            }
        }

        return false;
    }

    private static char[] int_to_char_array(int number) {
        return String.valueOf(number).toCharArray();
    }

    public static char[] rotated_chars(char[] chars, int chars_to_move) {
        int length = chars.length;
        char[] result = new char[length];
        System.arraycopy(chars, length - chars_to_move, result, 0, chars_to_move);
        System.arraycopy(chars, 0, result, chars_to_move, length - chars_to_move);

        return result;
    }

}
