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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 ulohy;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class codejam_3 {
	
	static byte cases;
	static int A, B;
	static List<Integer> l1 = new ArrayList<Integer>();
	static List<Integer> l2 = new ArrayList<Integer>();
	static int[] pairs;
	static int[] rotated_array = new int[10]; 
	
	public static void read_input() {
		
		Scanner s = null;
		try {
			s = new Scanner(new FileReader("./src/ulohy/C-small-attempt1.in"));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		
		cases = s.nextByte();
		
		pairs = new int[cases]; 
		
		for (int i = 0; i < cases; i++) {
			l1.add(s.nextInt());
			l2.add(s.nextInt());			
		}

		s.close();	
	}
	
	public static void write_output() {
		FileWriter outFile;
		try {
			outFile = new FileWriter("./src/ulohy/output");		
			PrintWriter out = new PrintWriter(outFile);
			for (int i = 1; i <= cases; i++) {
				out.println("Case #"+i+": "+pairs[i-1]);				
			}
			out.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public static int rotateNumber(int number, int mul)	{
		return number / 10 + mul * (number % 10);		
    }
	
	public static void main(String args[]) {
		
		int rotated;
		
		read_input();
		
		for (int i = 0; i < cases; i++) {			
			
			int numdigits = (int) Math.log10((double)l1.get(i)); // would return numdigits - 1
			int multiplier = (int) Math.pow(10.0, (double)numdigits);
			
			for (int j = l1.get(i); j <= l2.get(i); j++) {
				rotated = rotateNumber(j, multiplier);
				
				for (int k = 0; k <= numdigits; k++) {					
					if (j < rotated && rotated <= l2.get(i)) {
						for (int k2 = 0; k2 < k; k2++) {
							if (rotated == rotated_array[k2]) {
								pairs[i]--;
							}
						}
						pairs[i]++;
					}
					rotated_array[k] = rotated;
					rotated = rotateNumber(rotated, multiplier);
				}				
			}
		}
		
		write_output();
		
	}

}