class CombinationUtil {

    public static void add(int[] combination, int[] toBeAdded) {
        checkNotNullAndSameLength(combination, toBeAdded);
        
        for (int i = 0; i < toBeAdded.length; i++) {
            if (toBeAdded[i] != NO_VALUE) {
                combination[i] = toBeAdded[i];
            }
        }
    }

    private  CombinationUtil();

}