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package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

package main;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.PriorityQueue;

public class recycledNumbers {
	
	public static void main(String[] args)
	{
		File inputFile = new File("input/" + args[0]);
		
		if (!inputFile.exists())
		{
			System.out.print("File DNE");
			return;
		}
		
		BufferedReader br = null;
		try {
			br = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
			
			Integer caseCount = new Integer(br.readLine());
			Integer[] lowerList = new Integer[caseCount];
			Integer[] upperList = new Integer[caseCount];
			
			for (int i = 0; i < caseCount; i++)
			{
				String[] lineIn= br.readLine().split(" ");
				lowerList[i] = new Integer(lineIn[0]);
				upperList[i] = new Integer(lineIn[1]);
			}
			
			File outputFile = new File("output/" + args[0] + ".out");
			FileWriter fw = new FileWriter(outputFile);
			
			for (int i = 0; i < caseCount; i++)
			{
				foundPairs.clear();
				int finalCount = 0;
				Integer val = lowerList[i];
				while (val <= upperList[i])
				{
					finalCount += rotate(val, lowerList[i], upperList[i]);
					val++;
				}
				System.out.println("Case #" + (i + 1) + ": " + finalCount);
				fw.write("Case #" + (i + 1) + ": " + finalCount + "\n");
			}
			
			fw.close();
			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
	}
	
	private static Map<String,Boolean> foundPairs = new HashMap<String, Boolean>();
	
	private static int rotate(Integer val, Integer lowerBound, Integer upperBound)
	{
		char[] valString = val.toString().toCharArray();
		
		List<Character> valCharArray = new ArrayList<Character>(valString.length);
		
		for (int i = 0; i < valString.length; i++)
			valCharArray.add(valString[i]);
		
		int finalCount = 0;
		for (int i = 0; i < valString.length; i++)
		{
			valCharArray.add(valCharArray.remove(0));
			
			String testValString = new String("");
			for (int j = 0; j < valCharArray.size(); j++)
				testValString += valCharArray.get(j);
			
			Integer testVal = new Integer(testValString);
			
			String key1 = val.toString() + "_" + testVal.toString();
			String key2 = testVal.toString() + "_" + val.toString();
			if (foundPairs.get(key1) != null || foundPairs.get(key2) != null)
				continue;
			
			
			if (testVal > val && testVal <= upperBound)
			{
				foundPairs.put(key1,true);
				foundPairs.put(key2,true);
				
				finalCount++;
			}
		}
		return finalCount;
	}
}
