Method initialize

java/Chapter 5/Question5_7/Question.java:8–23

(int n, int missing)

public class Question {
    /* Create a random array of numbers from 0 to n, but skip 'missing' */
    public static ArrayList<BitInteger> initialize(int n, int missing) {
        BitInteger.INTEGER_SIZE = Integer.toBinaryString(n).length();
        ArrayList<BitInteger> array = new ArrayList<BitInteger>();
        
        for (int i = 1; i <= n; i++) {
        	array.add(new BitInteger(i == missing ? 0 : i));
        }

        // Shuffle the array once.
        for (int i = 0; i < n; i++){
            int rand = i + (int) (Math.random() * (n-i));
            array.get(i).swapValues(array.get(rand));
        }
        
        return array;
    }


    public static int findMissing(ArrayList<BitInteger> array) {