package jp.funnything.competition.util;

import java.math.BigInteger;

/**
 * Utility for BigInteger
 */
public class BI {
    public static BigInteger ZERO = BigInteger.ZERO;
    public static BigInteger ONE = BigInteger.ONE;

    public static BigInteger add( final BigInteger x , final BigInteger y ) {
        return x.add( y );
    }

    public static BigInteger add( final BigInteger x , final long y ) {
        return add( x , v( y ) );
    }

    public static BigInteger add( final long x , final BigInteger y ) {
        return add( v( x ) , y );
    }

    public static int cmp( final BigInteger x , final BigInteger y ) {
        return x.compareTo( y );
    }

    public static int cmp( final BigInteger x , final long y ) {
        return cmp( x , v( y ) );
    }

    public static int cmp( final long x , final BigInteger y ) {
        return cmp( v( x ) , y );
    }

    public static BigInteger div( final BigInteger x , final BigInteger y ) {
        return x.divide( y );
    }

    public static BigInteger div( final BigInteger x , final long y ) {
        return div( x , v( y ) );
    }

    public static BigInteger div( final long x , final BigInteger y ) {
        return div( v( x ) , y );
    }

    public static BigInteger mod( final BigInteger x , final BigInteger y ) {
        return x.mod( y );
    }

    public static BigInteger mod( final BigInteger x , final long y ) {
        return mod( x , v( y ) );
    }

    public static BigInteger mod( final long x , final BigInteger y ) {
        return mod( v( x ) , y );
    }

    public static BigInteger mul( final BigInteger x , final BigInteger y ) {
        return x.multiply( y );
    }

    public static BigInteger mul( final BigInteger x , final long y ) {
        return mul( x , v( y ) );
    }

    public static BigInteger mul( final long x , final BigInteger y ) {
        return mul( v( x ) , y );
    }

    public static BigInteger sub( final BigInteger x , final BigInteger y ) {
        return x.subtract( y );
    }

    public static BigInteger sub( final BigInteger x , final long y ) {
        return sub( x , v( y ) );
    }

    public static BigInteger sub( final long x , final BigInteger y ) {
        return sub( v( x ) , y );
    }

    public static BigInteger v( final long value ) {
        return BigInteger.valueOf( value );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package uk.co.epii.codejam.common;

import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

/**
 *
 * @author jim
 */
public class Output {
    
    private final String[] data;

    public Output(String[] data) {
        this.data = data;
    }
    
    public Output(ArrayList<String> data) {
        this(data.toArray(new String[0]));
    }
    
    public int size() {
        return data.length;
    }
    
    public String get(int i) {
        StringBuilder sb = new StringBuilder(data[i].length() + 10);
        sb.append("Case #");
        sb.append(i + 1);
        sb.append(": ");
        sb.append(data[i]);
        return sb.toString();
    }
    
    public void export(String fileName) {
        if (fileName == null) 
           print(); 
        else {
            try {
                save(fileName);
            }
            catch (IOException ioe) {
                System.out.println(ioe.getMessage());
                ioe.printStackTrace();
            }
        }
    }
    
    private void print() {
        for (int i = 0; i < size(); i++)
            System.out.println(get(i));
    }
    
    private void save(String fileName) throws IOException {
        FileWriter fw = new FileWriter(fileName);
        PrintWriter pw = new PrintWriter(fw);
        for (int i = 0; i < size(); i++) {
            pw.println(get(i));
        }
        pw.flush();
        pw.close();
        fw.close();
    }
    
}
