/*
 * 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 google.solver;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;

public class ProblemPackageCreator  implements ChallengeConstants{

	private final String packageName;
	private String directoryName;
	private String challengeDef;
	private String readerName;
	private String challengeName;
	private String packagePath;


	ProblemPackageCreator(String packageName){
		this.packageName = packageName;
		packagePath = "google.contest."+packageName;
		directoryName = BASE_DIR+DELIMITER+packageName;
		challengeDef = BASE_DIR+DELIMITER+packageName+DELIMITER+CHALLENGE_DEFINITION;
		readerName = packageName.substring(0,1).toUpperCase()+packageName.substring(1)+"Reader";
		challengeName = packageName.substring(0,1).toUpperCase()+packageName.substring(1)+"Challenge";
	}

	private void create() {
		try{
			createDirectory();
			createTestIn();
			createChallengeDefinition2();
			createReader();
			createChallenge();
		}
		catch(Exception e){
			throw new RuntimeException(e);
		}
	}

	private void createTestIn() {
		writeToPath(TEST_IN, "");
		
	}

	private void createChallenge() {
		String def ="package "+packagePath+";\n\n"+
				"import google.loader.Challenge;\n"+
				"import google.problems.AbstractChallenge;\n\n"+
				"public class "+challengeName+" extends AbstractChallenge implements Challenge {\n\n"+
				"public "+challengeName+"(int number) {\n"+
				"super(number);\n"+
				"setResult(\"\");\n"+
				"}\n"+
				"}\n";
		writeJava(challengeName, def);
	}

	private void createReader() {
		String def = "package "+packagePath+";\n\n"+
				"import google.loader.Challenge;\n"+
				"import google.problems.AbstractReader;\n\n"+
				"public class "+readerName+" extends AbstractReader {\n \n"+
				"@Override\n"+
				"protected Challenge createChallenge(int number) {\n"+
				"int theLine = getActualLine();\n"+
				"String[] lines = getLines();\n"+
				"int value = Integer.parseInt(getLines()[theLine]);\n"+
				challengeName+" chal = new "+challengeName+"(number);\n"+
				"setActualLine(theLine+1);\n"+
				"return chal;\n"+
				"}\n"+
				"\n"+
				"}\n";

		writeJava(readerName, def);
	}
	
	private void writeToPath(String fileName, String text){
		write(directoryName+DELIMITER+fileName, text);
	}

	private void writeJava(String baseName, String text) {
		writeToPath(baseName+".java", text);
	}

	private void createChallengeDefinition() {
		String def = "fileName="+TEST_IN+"\n"+
				"# fileName=A-small-practice.in\n"+
				"# fileName=A-large-practice.in\n"+
				"# fileName=B-small-practice.in\n"+
				"# fileName=B-large-practice.in\n"+
				"# fileName=C-small-practice.in\n"+
				"# fileName=C-large-practice.in\n"+
				"readerClassName="+packagePath+"."+readerName;
		write(challengeDef, def);
	}

	private void createChallengeDefinition2() {
		String def = "fileName="+TEST_IN+"\n"+
				"# fileName="+packageName+"-small-practice.in\n"+
				"# fileName="+packageName+"-large-practice.in\n"+
				"readerClassName="+packagePath+"."+readerName;
		write(challengeDef, def);
	}
	
	private void createDirectory() throws Exception{
		File file = new File(directoryName);
		if(! file.exists()){
			file.mkdir();
		}else{
			throw new RuntimeException("alreadyExisting");
		}
	}

	public static void main(String[] args) {
		String packageName =CHALLENGE_NAME;
		ProblemPackageCreator creator = new ProblemPackageCreator("A");
		creator.create();
		creator = new ProblemPackageCreator("B");
		creator.create();
		creator = new ProblemPackageCreator("C");
		creator.create();
	}

	public static void write(String aFileName, String text) {
		try{
			FileWriter fstream = new FileWriter(aFileName);
			BufferedWriter out = new BufferedWriter(fstream);
			out.write(text);
			out.close();
		}catch (Exception e){
			throw new RuntimeException(e);
		}
	}


}
