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 fixjava;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map.Entry;

/**
 * Pair: typed 2-tuple
 */
public class Pair<L, R> {

	private final L left;
	private final R right;

	public R getRight() {
		return right;
	}

	public L getLeft() {
		return left;
	}

	public Pair(final L left, final R right) {
		this.left = left;
		this.right = right;
	}

	/** Convenience method so type params of pair don't have to be specified: just do Pair.make(l, r) */
	public static <L, R> Pair<L, R> make(L left, R right) {
		return new Pair<L, R>(left, right);
	}

	// ---------------------------------------------------------------------------------------------------

	private static final boolean objEquals(Object p1, Object p2) {
		if (p1 == null)
			return p2 == null;
		return p1.equals(p2);
	}

	@Override
	public final boolean equals(Object o) {
		if (!(o instanceof Pair<?, ?>)) {
			return false;
		} else {
			final Pair<?, ?> other = (Pair<?, ?>) o;
			return objEquals(getLeft(), other.getLeft()) && objEquals(getRight(), other.getRight());
		}
	}

	@Override
	public int hashCode() {
		int hl = getLeft() == null ? 0 : getLeft().hashCode();
		int hr = getRight() == null ? 0 : getRight().hashCode();
		return (hl + (127 * hr)) ^ (hr << 1);
	}

	// ---------------------------------------------------------------------------------------------------

	@Override
	public String toString() {
		return "(" + getLeft() + ", " + getRight() + ")";
	}

	// ---------------------------------------------------------------------------------------------------

	public static <K, V> ArrayList<K> getAllLefts(Iterable<Pair<K, V>> list) {
		ArrayList<K> result = new ArrayList<K>();
		for (Pair<K, V> pair : list)
			result.add(pair.getLeft());
		return result;
	}

	public static <K, V> ArrayList<V> getAllRights(Iterable<Pair<K, V>> list) {
		ArrayList<V> result = new ArrayList<V>();
		for (Pair<K, V> pair : list)
			result.add(pair.getRight());
		return result;
	}

	// ---------------------------------------------------------------------------------------------------

	public static <A extends Comparable<A>, B> Comparator<Pair<A, B>> comparatorOnLeft(Collection<Pair<A, B>> tupleCollection) {
		return new Comparator<Pair<A, B>>() {
			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return o1.getLeft().compareTo(o2.getLeft());
			}
		};
	}

	public static <A extends Comparable<A>, B> Comparator<Pair<A, B>> comparatorOnLeftRev(Collection<Pair<A, B>> tupleCollection) {
		return new Comparator<Pair<A, B>>() {
			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return -o1.getLeft().compareTo(o2.getLeft());
			}
		};
	}

	public static <A, B extends Comparable<B>> Comparator<Pair<A, B>> comparatorOnRight(Collection<Pair<A, B>> tupleCollection) {
		return new Comparator<Pair<A, B>>() {
			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return o1.getRight().compareTo(o2.getRight());
			}
		};
	}

	public static <A, B extends Comparable<B>> Comparator<Pair<A, B>> comparatorOnRightRev(Collection<Pair<A, B>> tupleCollection) {
		return new Comparator<Pair<A, B>>() {
			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return -o1.getRight().compareTo(o2.getRight());
			}
		};
	}

	static <A extends Comparable<A>, B> Comparator<Pair<A, B>> comparatorOnLeft(Collection<Pair<A, B>> tupleCollection,
			final boolean ascending) {
		return new Comparator<Pair<A, B>>() {
			final int weight = ascending ? 1 : -1;

			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return o1.getLeft().compareTo(o2.getLeft()) * weight;
			}
		};
	}

	static <A, B extends Comparable<B>> Comparator<Pair<A, B>> comparatorOnRight(Collection<Pair<A, B>> tupleCollection,
			final boolean ascending) {
		return new Comparator<Pair<A, B>>() {
			final int weight = ascending ? 1 : -1;

			@Override
			public int compare(Pair<A, B> o1, Pair<A, B> o2) {
				return o1.getRight().compareTo(o2.getRight()) * weight;
			}
		};
	}

	// ---------------------------------------------------------------------------------------------------

	/** Sort a List<Pair<K, V>> in-place into order of increasing or decreasing K */
	public static <K extends Comparable<K>, V> void sortPairsByLeft(List<Pair<K, V>> list, boolean ascending) {
		Collections.sort(list, comparatorOnLeft(list, ascending));
	}

	/** Sort a List<Pair<K, V>> in-place into order of increasing K */
	public static <K extends Comparable<K>, V> void sortPairsByLeft(List<Pair<K, V>> list) {
		Collections.sort(list, comparatorOnLeft(list, true));
	}

	/** Sort a List<Pair<K, V>> in-place into order of increasing or decreasing V */
	public static <K, V extends Comparable<V>> void sortPairsByRight(List<Pair<K, V>> list, boolean ascending) {
		Collections.sort(list, comparatorOnRight(list, ascending));
	}

	/** Sort a List<Pair<K, V>> in-place into order of increasing V */
	public static <K, V extends Comparable<V>> void sortPairsByRight(List<Pair<K, V>> list) {
		Collections.sort(list, comparatorOnRight(list));
	}

	/** Convert a <K, V> map into a list of Pair<K, V>, final order unspecified */
	public static <K, V> ArrayList<Pair<K, V>> mapToList(HashMap<K, V> map) {
		ArrayList<Pair<K, V>> list = new ArrayList<Pair<K, V>>();
		for (Entry<K, V> ent : map.entrySet())
			list.add(new Pair<K, V>(ent.getKey(), ent.getValue()));
		return list;
	}
}
