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 * and open the template in the editor.
 */

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 recycledNumbers;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	private String inputPath;
	private String outputPath;
	private ArrayList<String> inputLines;
	private ArrayList<String> outputLines = new ArrayList<String>();
	
	public RecycledNumbers(String inputPath){
		
		try 
		{
			this.inputPath = inputPath;
			this.outputPath = inputPath.replace(".in", ".out");
			this.inputLines = openFile();
			
			findSolution();
			
			generateOutputFile();
		} 
		catch (IOException e) 
		{			
			e.printStackTrace();
		}	
	}
	
	private ArrayList<String> openFile() throws IOException
	{
		ArrayList<String> lines = new ArrayList<String>();
		FileReader fr = new FileReader(this.inputPath);
		BufferedReader br = new BufferedReader(fr);
		String zeile = null;
		
		while ((zeile = br.readLine()) != null)
		{
			lines.add(zeile);
		}
		br.close();
		
		return lines;
	}	
	
	private void generateOutputFile() throws IOException
	{
		FileWriter fw = new FileWriter(outputPath);
		PrintWriter pw = new PrintWriter(fw);
		
		for (String string : outputLines) {
			//System.out.println(string);	
			pw.println(string);
		}	
		
		pw.close();
	}
	
	private void findSolution()
	{
		
		
		for (int i=1; i<inputLines.size(); i++)
		{		
			Set<String> gefunden = new HashSet<String>();
			
			Integer m = 0;				
			String inp = inputLines.get(i);
			String outp = "Case #" + i + ": ";
			Integer A = Integer.parseInt( inp.split(" ")[0] );
			Integer B = Integer.parseInt( inp.split(" ")[1] );			
			
			for (Integer n=A; n<B; n++){					
				String N = n.toString();
				
				for (int j=1; j<N.length(); j++){
					String M = N.substring(j) + N.substring(0, j);
					if (!M.startsWith("0") && N.length() == M.length()) 
								m =  Integer.parseInt(M);					
										
					if (!M.startsWith("0") && m>n){
						if (m<=B){
							gefunden.add(n+"<->"+m);							
						}
					}					
				}
			}			
			outp += gefunden.size();
			outputLines.add(outp);
		}
	}
	
	public static void main(String[] args) {
		//new RecycledNumbers("src/recycledNumbers/sample.in");
		new RecycledNumbers("src/recycledNumbers/C-small-attempt0.in");

	}
}

