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 codejam.c;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

import codejam.TestCaseReader;

public class Main {

	public static void main(String[] args) {

		TestCaseReader<int[]> reader = new TestCaseReader<int[]>("in.txt") {

			@Override
			protected int[] parseTestCase(String line) {
				String[] splitted = line.split("\\s");
				return new int[] { Integer.parseInt(splitted[0]),
						Integer.parseInt(splitted[1]) };
			}
		};

		BufferedWriter writer = null;
		try {
			writer = new BufferedWriter(new FileWriter(new File("out.txt")));
		} catch (IOException e) {
			e.printStackTrace();
		}
		int testCases = reader.getTestCases();

		int[] testCase = null;

		for (int i = 0; i < testCases; i++) {
			testCase = reader.getNextTestCase();
			long result = Main.solveCase(testCase[0], testCase[1]);
			try {
				writer.write("Case #" + (i + 1) + ": " + result);
				writer.newLine();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		try {
			writer.flush();
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private static long solveCase(int a, int b) {

		char[] bArray = Main.converToCharArray(b);

		Set<String> counted = new HashSet<String>();

		for (int num = a; num <= b; num++) {
			char[] numArray = Main.converToCharArray(num);
			char[] numArrayPair = Main.converToCharArray(num);

			for (int i = 0; i < numArray.length - 1; i++) {
				Main.rotateCharArray(numArrayPair);

				if (Main.compare(numArrayPair, bArray) <= 0
						&& Main.compare(numArray, numArrayPair) < 0) {

					String pair = new String(numArray)
							+ new String(numArrayPair);
					if (!counted.contains(pair)) {
						counted.add(pair);
					}

				}
			}
		}

		return counted.size();
	}

	private static char[] converToCharArray(int num) {
		return new Integer(num).toString().toCharArray();
	}

	private static void rotateCharArray(char[] array) {
		char tmp = array[array.length - 1];
		for (int i = array.length - 1; i > 0; i--) {
			array[i] = array[i - 1];
		}
		array[0] = tmp;
	}

	private static int compare(char[] a, char[] b) {

		for (int i = 0; i < a.length; i++) {
			if (a[i] < b[i]) {
				return -1;
			} else if (a[i] > b[i]) {
				return 1;
			}
		}
		return 0;
	}
}
