import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
package hk.polyu.cslhu.codejam.lib;

import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;

public class ResultCollector {
	public static Logger logger = Logger.getLogger(ResultCollector.class);
	public static String IndexPartInRow = "%i";
	public static String ResultPartInRow = "%r";
	
	private Map<Integer, List<String>> resultMap;
	private String resultFile, resultPattern;
	private int amountOfTestCases, numOfProcessedTestCases;
	
	/**
	 * Constructs a instance of result collector
	 * 
	 * @param amountOfTestCases int The amount of test cases
	 * @param resultFile String The location of result file
	 */
	public ResultCollector(int amountOfTestCases, String resultFile, String resultPattern) {
		this.resultMap = new HashMap<Integer, List<String>> ();
		this.resultFile = resultFile;
		this.resultPattern = resultPattern;
		this.amountOfTestCases = amountOfTestCases;
		this.numOfProcessedTestCases = 0;
	}
	
	/**
	 * update the result stored in the object
	 * 
	 * @param partIndex int The part index of result
	 * @param partOfResult List<String> The part of result
	 */
	public synchronized void updateResult(int partIndex, List<String> partOfResult) {
		// add the part of result
		if (this.resultMap.containsKey(partIndex)) {
			logger.error("Failure to add the part of result with part index " + partIndex);
		} else {
			this.resultMap.put(partIndex, partOfResult);
			this.numOfProcessedTestCases += partOfResult.size();
			
			logger.info("The #" + partIndex + " is completed!");
		}
		
		// trigger the save method when all test cases are processed
		if (this.numOfProcessedTestCases == this.amountOfTestCases)
			this.save();
		else if (this.numOfProcessedTestCases > this.amountOfTestCases)
			logger.error(
					"The number of processed test cases is more than the amount of test cases (" 
					+ this.numOfProcessedTestCases + " > " 
					+ this.amountOfTestCases + ")");
	} 
	
	/**
	 * Save the result in the given file
	 * 
	 * @param filePath String The location of file to be saved
	 */
	private void save() {
		// constructs the content
		String content = this.constructTheContent();
		FileStream.save(this.resultFile, content);
		
		logger.info("The result of all test cases is saved with the path " + this.resultFile);
	}
	
	/**
	 * Construct the content to be saved
	 * 
	 * @return String The content of file
	 */
	private String constructTheContent() {
		// TODO Auto-generated method stub
		String content = "";
		int rowIndex = 1;
		
		// sort the key of result map
		List<Integer> keySet = new LinkedList<Integer>(this.resultMap.keySet());
		Collections.sort(keySet);
		
		
		for (Integer key : keySet) {
			List<String> resultList = this.resultMap.get(key);
			
			for (String result : resultList) {
				String rowContent = this.resultPattern.replaceAll(IndexPartInRow, String.valueOf(rowIndex)).replaceAll(ResultPartInRow, result);
				content += rowContent;
				rowIndex++;
			}
		}
		
		return content;
	}
}
