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());
	}

}

package cg.y2012.Q3;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class Q3 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		 BufferedWriter out = null;
		try {
			String newLine = System.getProperty("line.separator");
		    out = new BufferedWriter(new FileWriter(args[0]+".output"));
		    BufferedReader b = new BufferedReader(new FileReader(args[0]));
		    int number_of_test_cases = Integer.parseInt(b.readLine().split(" ")[0]);
		    for( int tc = 0; tc < number_of_test_cases; tc++) {
		    	int[] data = convertToInt(b.readLine());
		    	int A = data[0];
		    	int B = data[1];
		    	Set<String> s = new HashSet<String>();
				int count = 0;
				for (int n = A; n <= B; n++) {
					for (int m : getRecycled(n)) {
						if(m> n  && m <= B){
							count++;
//							if(tc < number_of_test_cases-1)
//								if(!s.add("(" + n + "," + m + ")"))
//									System.out.println("(" + n + "," + m + ")");
						}
					}
				}
			    out.write("Case #"+(tc+1)+": "+count+newLine);
			}
		} catch (IOException e) {
			System.out.println("Exception : "+e);
		}
		finally {
			if(out != null){
				try {
					out.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}
	
	private static Set<Integer> getRecycled(int A){
		String a = Integer.toString(A);
		Set<Integer> r = new HashSet<Integer>();
		String temp="";
		for(int i =a.length();i>0;i--){
			temp = a.charAt(i-1)+temp;
			String x = temp+a.substring(0, i-1);
			r.add(Integer.parseInt(x));
		}
		return r;
	}
	
	private static boolean isRecycled(int A, int B){
		String a = Integer.toString(A);
		String b = Integer.toString(B);
		String temp="";
		for(int i =a.length();i>0;i--){
			temp = a.charAt(i-1)+temp;
			String x = temp+a.substring(0, i-1);
			if(x.equals(b)){
				return true;
			}
		}
		return false;
	}
	
	private static int[] convertToInt(String line){
		String data[] = line.split(" ");
		int[] rtn = new int[data.length];
		for(int i=0;i< data.length ;i++){
			rtn[i]=Integer.parseInt(data[i].trim());
		}
		return rtn;
	}
	
}