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

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

package mgg.problems;

import java.util.ArrayList;
import java.util.List;

import mgg.utils.FileUtil;
import mgg.utils.Pair;
import mgg.utils.StringUtils;

/**
 * @author manolo
 * @date 14/04/12
 */
public class ProblemC {

	public final static String EXAMPLE_IN = "C-example.in";
	public final static String EXAMPLE_OUT = "C-example.out";

	public final static String C_SMALL_IN = "C-small-attempt0.in";
	public final static String C_SMALL_OUT = "C-small-attempt0.out";

	public final static String C_LARGE_IN= "C-large-practice.in";
	public final static String C_LARGE_OUT = "C-large-practice.out";

	public final static String delim = " ";

	public static String solve(FileUtil util) {

		String line = util.getLine();
		List<Integer> listOfArgs = StringUtils.stringWithIntegersToList(line, delim);

		final int A = listOfArgs.get(0);
		System.out.println("\tA = " + A);

		final int B = listOfArgs.get(1);
		System.out.println("\tB = " + B);

		//ArrayList<Pair> solution = new ArrayList<Pair>();
		int found = 0;
		for(int i = A; i < B ; i++){
			for(int j = A + 1; j <= B ; j++){
				if(i<j){
					if(recicled(i, j)){
						found++;//solution.add(new Pair(i, j));
					}
				}
			}
		}

		//System.out.println("Solution: " + solution);
		System.out.println("Found: " + found);

		return "" + found;
	}

	private static boolean recicled(int n, int m) {

		int numCiphers = numCiphers(n);

		//System.out.println("n: " + n + "(" + numCiphers + ")");

		for(int i = 0; i < numCiphers; i++){
			int aux_n = moveCiphersToFront(n, i, numCiphers);
			//System.out.println("aux_n: " + aux_n);
			
			if(aux_n == m){
				return true;
			}
		}

		return false;
	}

	private static int numCiphers(int n) {
		int result = 0;
		while(n > 0){
			n = n / 10;
			result++;
		}
		return result;
	}

	private static int moveCiphersToFront(int number, int howManyCiphers, int numCiphers) {
		String num = "" + number;

		String newNumber = num.substring(numCiphers-howManyCiphers, numCiphers) +
		num.substring(0, numCiphers-howManyCiphers);

		//System.out.println("new number: " + newNumber);

		return Integer.parseInt(newNumber);
	}

}
