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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 recycled;
import java.io.*;

public class Recycled {
	private int N;
	private String[] InputStringArray;
	private String[] OutputStringArray;
	
	public static void main(String[] args) {
		try{	
			Recycled R = new Recycled();
			if (R.GetDataFromInputFile())
				if (R.ProcestestData())
					R.WriteDatatoOutputFile();
				else
					System.out.println("Error while writing to outputfile");
			else
				System.out.println("Error while getting the input data");
		}catch(IOException ex){
			System.out.println("IO Error");
		}
	}
	private boolean GetDataFromInputFile() throws IOException{
		int casecount=0;
		FileInputStream in = new FileInputStream("E:\\Study\\Google Code jam\\2012\\Recyclednumbers" +
				"\\Input\\C-small-attempt0.in");
		DataInputStream di = new DataInputStream(in);
		BufferedReader br = new BufferedReader(new InputStreamReader(di));
		String line;
		if ((line = br.readLine())!= null) {
			casecount = Integer.parseInt(line);
			InputStringArray = new String[casecount];
			OutputStringArray = new String[casecount];
		}
		for (int i=0; i<casecount; i++){
			if ((line = br.readLine())!= null) 
				InputStringArray[i]=line;
		}
		return true;
	}
	private void WriteDatatoOutputFile() throws IOException{
		FileOutputStream out = new FileOutputStream("E:\\Study\\Google Code jam\\2012\\Recyclednumbers\\Output\\output.txt");
		DataOutputStream dout = new DataOutputStream(out);
		BufferedWriter br = new BufferedWriter(new OutputStreamWriter(dout));
		for (int i=1; i<=OutputStringArray.length;i++){
			br.write("Case #"+i+": "+OutputStringArray[i-1]+"\r\n");
		}
		br.close();
		dout.close();
		out.close();
		System.out.println("Done");
	}
	private boolean ProcestestData(){
		for (int i=0; i<(InputStringArray.length);i++){
			String CurrentString =  InputStringArray[i];
			OutputStringArray[i] = ProcessString(CurrentString);
		}
		return true;
	}
	private String ProcessString(String aString){
		int A,B,count=0;
		int digitcount;
		String[] parameters = aString.split(" ");
		A=Integer.parseInt(parameters[0]);
		B=Integer.parseInt(parameters[1]);
		digitcount = String.valueOf(A).length(); 
		int[] store = new int[digitcount-1];
		for (int i=A; i<=B;i++){
			int subdigit1, subdigit2;
			int newnumber;
			for (int j=0; j<digitcount-1;j++)
				store[j]=0;
			for (int j=1;j<digitcount;j++){
				boolean repetition = false;
				subdigit1 = (int)(i%(Math.pow(10,j)));
				subdigit2 = (int)((i/Math.pow(10,digitcount-j)));	
				if ((subdigit1>=subdigit2) &&
				   (subdigit1<=(B/Math.pow(10,digitcount-j))))
				{
					newnumber = (int) (subdigit1*Math.pow(10, digitcount-j)+ (int)((i/Math.pow(10,j))));
					if ((newnumber>i)&&(newnumber<=B)){
						for (int k=0; k<digitcount-1;k++){
							if (newnumber==store[k])//repetition
								repetition = true;
						}
						//System.out.println(i+" "+newnumber);
						if (!repetition) {
							count++;
							store[j-1]=newnumber;
						}	
					}	
				}
			}
		}
		return String.valueOf(count);
	}
}
