package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package codejamqualfication;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 */
public class QualificationC {
    
    public static void main(String[] args) {
        File file = new File("C:\\codejam\\plik.txt");
        File result = new File("C:\\codejam\\result.txt");


        try {
            BufferedReader input = new BufferedReader(new FileReader(file));
            FileWriter writer = new FileWriter(result);

            int i = -1;
            String line;

            while ((line = input.readLine()) != null) {

                if (i == -1) {
                    i = 0;
                } else {
                    i++;
                    writer.write(processLine(line, i));
                    writer.write("\n");
                }
            }

            input.close();
            writer.close();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    private static final Pattern LINE_PATTERN = Pattern.compile("(\\d+)\\s(\\d+)");

    private static String processLine(String line, int i) {
        StringBuilder sb = new StringBuilder("Case #");
        sb.append(i);
        sb.append(": ");
        Matcher m = LINE_PATTERN.matcher(line);
        if(m.matches()){
            sb.append(generateAndCountPairs(m.group(1), m.group(2)));
        }                    
        
        return sb.toString();
    }

    private static int generateAndCountPairs(String a, String b) {
        int successCounter = 0;
        int aInt = Integer.valueOf(a);
        int bInt = Integer.valueOf(b);
        for (int nInt = aInt; nInt <= bInt; nInt++) {
            String n = String.valueOf(nInt);
            Set<Integer> obtainedMs = new HashSet<Integer>();
            for (int i = 1; i <= n.length(); i++) {
                String m = n.substring(i, n.length()) + n.substring(0, i);
                int mInt = Integer.valueOf(m);
                if (mInt > nInt && mInt <= bInt && !m.startsWith("0") && !obtainedMs.contains(mInt)) {
                    successCounter++;
                    obtainedMs.add(mInt);
                }
            }
        }
        return successCounter;
    }
}
