private List <Banknote> GetMoney(int amount, Banknote root, ref List <Banknote> banknotes)
{
if (root == null || amount == 0)
{
return(banknotes);
}
if (root.Amount > amount || root.Count == 0)
{
return(GetMoney(amount, root.Next, ref banknotes));
}
var money = root.TakeMoney();
if (banknotes.Any(x => x.Amount == money.Amount))
{
banknotes.FirstOrDefault(x => x.Amount == money.Amount).AddMoney(money);
}
else
{
banknotes.Add(new Banknote(money.Amount, 1));
}
amount -= money.Amount;
return(GetMoney(amount, root, ref banknotes));
}
public void AddNext(Banknote next)
{
if (Next == null)
{
Next = next;
}
else
{
Next.AddNext(next);
}
}
public ATM(List <Banknote> banknotes)
{
foreach (var item in banknotes)
{
if (banknote == null)
{
banknote = item;
}
else
{
banknote.AddNext(item);
}
}
}
