package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

package codejam.morl99.c;

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import java.util.Set;

public class ProblemC {
    public void solveSet(PrintWriter pw, BufferedReader reader) throws IOException {

        String firstLine = reader.readLine();
        Scanner scanner = new Scanner(firstLine);
        scanner.useDelimiter(" ");
        int T = scanner.nextInt();

        for (int i = 1; i <= T; i++) {
            scanner = new Scanner(reader.readLine());
            scanner.useDelimiter(" ");
            int n = scanner.nextInt();
            int m = scanner.nextInt();
            System.out.println("-- n: " + n + " m: " + m);
            int solution = solveLine(n, m);
            pw.printf("Case #%d: %d", i, solution);
            System.out.println("Solved " + i);
            pw.println();
        }

    }

    public int solveLine(int A, int B) {
        int oldSize = 0;
        Set<Pair> pairs = new HashSet<Pair>();
        for (int i = A; i <= B; i++) {
            Set<Pair> newPairs = getPermutations(i);
            for (Pair p: newPairs) {
                if (p.isInBoundaries(A, B)) {
                    pairs.add(p);
                }
                
            }
            if (pairs.size() > oldSize) {
                oldSize = pairs.size();
//                System.out.println("New Pairs for "+ i + ": " + setToString(pairs) ) ;
            }
        }
        
        return pairs.size();
    }
    
    public Set<Pair> getPermutations(int i){
        Set<Pair> pairs = new HashSet<>();
        String number = "" + i;
        
        //we will now create the pairs by cutting the number in half and moving the second half in front of the first
        int position = number.length()-1;
        final int endIndex = number.length();
        while (position > 0) {
            String recycled = number.substring(position, endIndex) + number.substring(0, position);
            int r= Integer.parseInt(recycled);
            if (i != r) {
                pairs.add(new Pair(i,r));
//                System.out.println(number + " <-> " + recycled);
            }
            position--;
        }
        return pairs;
    }

    public static String setToString(Set<Pair> set) {
        StringBuilder s = new StringBuilder();
        for (Pair p:set) {
            s.append(p);
        }
        return s.toString();
    }
    
    public static void main(String[] args) throws IOException {
        ProblemC p = new ProblemC();

        OutputStream output = new FileOutputStream("res/C.out", false);
        PrintWriter pw = new PrintWriter(output);
        BufferedReader reader = new BufferedReader(new FileReader("res/C-large.in"));
        p.solveSet(pw, reader);
        pw.close();
        reader.close();

    }
}

class Pair {
    int n, m;

    public Pair(int x, int y) {
        if (x < y) {
            n = x;
            m = y;
        } else {
            m = x;
            n = y;
        }
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof Pair) {
            Pair other = (Pair) obj;
            if (n == other.n && m == other.m)
                return true;
            if (n == other.m && m == other.n)
                return true;
            return false;
        }
        return super.equals(obj);
    }

    public boolean isInBoundaries(int A, int B) {
        return n >= A && m <= B;
    }

    @Override
    public int hashCode() {
        return n+m;
    }
    
    @Override
    public String toString() {
        return "("+n+","+m+")";
    }
}