/*
 * Problem C. Recycled Numbers
 * 
 * Do you ever become frustrated with television because you keep seeing the
 * same things, recycled over and over again? Well I personally don't care about
 * television, but I do sometimes feel that way about numbers.
 * 
 * Let's say a pair of distinct positive integers (n, m) is recycled if you can
 * obtain m by moving some digits from the back of n to the front without
 * changing their order. For example, (12345, 34512) is a recycled pair since
 * you can obtain 34512 by moving 345 from the end of 12345 to the front. Note
 * that n and m must have the same number of digits in order to be a recycled
 * pair. Neither n nor m can have leading zeros.
 * 
 * Given integers A and B with the same number of digits and no leading zeros,
 * how many distinct recycled pairs (n, m) are there with A â¤ n < m â¤ B?
 * 
 * Input
 * 
 * The first line of the input gives the number of test cases, T. T test cases
 * follow. Each test case consists of a single line containing the integers A
 * and B.
 * 
 * Output
 * 
 * For each test case, output one line containing "Case #x: y", where x is the
 * case number (starting from 1), and y is the number of recycled pairs (n, m)
 * with A â¤ n < m â¤ B.
 * 
 * Limits
 * 
 * 1 â¤ T â¤ 50.
 * 
 * A and B have the same number of digits.

Small dataset

1 â¤ A â¤ B â¤ 1000.

Large dataset

1 â¤ A â¤ B â¤ 2000000.

Sample


Input 
 	
Output 
 
4
1 9
10 40
100 500
1111 2222
Case #1: 0
Case #2: 3
Case #3: 156
Case #4: 287
 */

package google.codejam.y2012.qualifications;

import google.codejam.commons.Utils;

import java.io.IOException;
import java.util.StringTokenizer;

/**
 * @author Marco Lackovic <marco.lackovic@gmail.com>
 * @version 1.0, Apr 14, 2012
 */
public class RecycledNumbers {

	private static final String INPUT_FILE_NAME = "C-large.in";
	private static final String OUTPUT_FILE_NAME = "C-large.out";

	public static void main(String[] args) throws IOException {
		String[] input = Utils.readFromFile(INPUT_FILE_NAME);
		String[] output = new String[input.length];
		int x = 0;
		for (String line : input) {
			StringTokenizer st = new StringTokenizer(line);
			int a = Integer.valueOf(st.nextToken());
			int b = Integer.valueOf(st.nextToken());
			System.out.println("Computing case #" + (x + 1));
			output[x++] = "Case #" + x + ": " + recycledNumbers(a, b);
		}
		Utils.writeToFile(output, OUTPUT_FILE_NAME);
	}

	private static int recycledNumbers(int a, int b) {
		int count = 0;
		for (int n = a; n < b; n++) {
			count += getNumGreaterRotations(n, b);
		}
		return count;
	}

	private static int getNumGreaterRotations(int n, int b) {
		int count = 0;
		char[] chars = Integer.toString(n).toCharArray();
		for (int i = 0; i < chars.length; i++) {
			chars = rotateRight(chars);
			if (chars[0] != '0') {
				int m = Integer.valueOf(new String(chars));
				if (n == m) {
					break;
				} else if (n < m && m <= b) {
					count++;
				}
			}
		}
		return count;
	}

	private static char[] rotateRight(char[] chars) {
		char last = chars[chars.length - 1];
		for (int i = chars.length - 2; i >= 0; i--) {
			chars[i + 1] = chars[i];
		}
		chars[0] = last;
		return chars;
	}

}

package googleCodeJam;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class RecycledNumbersBig {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Map<Integer, Integer> map = new HashMap<Integer, Integer>();
		int i;
		
		//System.out.println("size of map: " + map.size());
		try{
			
			FileInputStream fstream = new FileInputStream("/Users/mkay/Documents/input_31.txt");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			
			int input1, input2;
			String str1, str2;
			int count = 0,j,m,n,num;
			  while ((strLine = br.readLine()) != null)
			  {
				  //System.out.println (strLine);
				  
				  if(count != 0 )
				  {
					  map = new HashMap<Integer, Integer>();
					  input1 = Integer.parseInt(strLine.split(" ")[0]);
					  input2 = Integer.parseInt(strLine.split(" ")[1]);
					  num=0;
					  
					  for(i=input1;i<input2;i++)
					  {
						 if(i<=99){
							 j=i/10+(i%10)*10;
							 
							 if(j!=i && j>= input1 && j<= input2 && j <= 99 && j > i){
								 num++;
							 }
						 }else if(i<= 999){
							 j=i;
							 for(int k=0;k<2;k++){
								 j=j/10+(j%10)*100;
								 if(j>= input1 && j<= input2 && j!=i && j >= 100 && j>i)
									 num++;
							 }
						 }
						 else if(i<= 9999){
							 j=i;
							 map = new HashMap<Integer, Integer>();
							 for(int k=0;k<3;k++){
								 j=j/10+(j%10)*1000;
								 if(j>= input1 && j<= input2 && j!=i && j>i){
									 if(!map.containsKey(j)){
										 map.put(j, j);
										 num++;
									 }
									 //System.out.println(i + " : " + j);
									 
								 }
							 }
						 }
						 else if(i<= 99999){
							 j=i;
							 map = new HashMap<Integer, Integer>();
							 for(int k=0;k<4;k++){
								 j=j/10+(j%10)*10000;
								 if(j>= input1 && j<= input2 && j!=i && j>i)
									 if(!map.containsKey(j)){
										 map.put(j, j);
										 num++;
									 }
							 }
						 }
						 else if(i<= 999999){
							 j=i;
							 map = new HashMap<Integer, Integer>();
							 for(int k=0;k<5;k++){
								 j=j/10+(j%10)*100000;
								 if(j>= input1 && j<= input2 && j!=i && j>i)
									 if(!map.containsKey(j)){
										 map.put(j, j);
										 num++;
									 }
							 }
						 }
						 else if(i<= 999999){
							 j=i;
							 map = new HashMap<Integer, Integer>();
							 for(int k=0;k<6;k++){
								 j=j/10+(j%10)*1000000;
								 if(j>= input1 && j<= input2 && j!=i && j>i)
									 if(!map.containsKey(j)){
										 map.put(j, j);
										 num++;
									 }
							 }
						 }
						 else if(i<= 9999999){
							 j=i;
							 map = new HashMap<Integer, Integer>();
							 for(int k=0;k<7;k++){
								 j=j/10+(j%10)*10000000;
								 if(j>= input1 && j<= input2 && j!=i && j>i)
									 if(!map.containsKey(j)){
										 map.put(j, j);
										 num++;
									 }
							 }
						 }
					  }
					  //1761080
					  //999999
					  //for(Integer k: map.keySet())
						//  System.out.println(k + " : " + map.get(k));
					  //System.out.println("Case #"+ count + ": " + map.size() + " input: " + input1 + " : " + input2 + " num " + num);
					  System.out.println("Case #"+ count + ": " + num);
				  }
				  count++;
				  
			  }			  
			  in.close();
			}catch (IOException e)
		    {
				System.err.println("Error: " + e.getMessage());
		    }		
	}

}