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 net.anzix.learn.codejam.qr12;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {

	private InputStream input;
	private PrintStream output;


	public RecycledNumbers() {

	}

	public RecycledNumbers(InputStream input, PrintStream output) {
		super();
		this.input = input;
		this.output = output;
	}

	public RecycledNumbers(File inputFile, File outputFile) throws Exception {
		this.input = new FileInputStream(inputFile);
		output = new PrintStream(outputFile);

	}

	public void run() throws Exception {
		Scanner scanner = new Scanner(input);
		int lines = scanner.nextInt();
		for (int i = 0; i < lines; i++) {
			int from = scanner.nextInt();
			int to = scanner.nextInt();
			output.println("Case #" + (i + 1) + ": " + calcNo(from, to));
		}
		output.close();
	}

	public static void main(String[] args) {
		try {
			new RecycledNumbers(new File(args[0]), new File(args[1])).run();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public int calcNo(int from, int to) {
		int digits = digit(from);
		if (digits < 1) {
			return 0;
		}
		int pow = (int) Math.pow(10, digits - 1);
		
		int res = 0;
		for (int m = from; m <= to; m++) {
			for (int p : convertedNumbers(m,digits,pow)) {
				if (p > m && p <= to) {
					res++;
				}
			}
		}
		return res;
	}

	public Set<Integer> convertedNumbers(int original,int digits, int pow) {		
		int l = pow;
		int s = 10;
		Set<Integer> res = new HashSet<Integer>();
		for (int i = 0; i < digits - 1; i++) {
			if (original % s != 0) {
				int x = (original % s) * pow + original / s;
				if (x != original && x > l) {
					res.add(x);
				}
			}
			s *= 10;
			pow /= 10;
		}
		return res;
	}

	public int digit(int i) {
		return (int) Math.ceil(Math.log10(i+0.5));
	}
}
