protected override bool isValid(Rent rent)
{
return(false);
}
protected override void apply(Rent rent)
{
count--;
}
protected override void apply(Rent rent)
{
}
protected override bool isValid(Rent rent)
{
return(count > 0);
}
protected override void apply(Rent rent)
{
remaining -= rent.Price;
}
protected override bool isValid(Rent rent)
{
return(remaining > rent.Price);
}
protected abstract void apply(Rent rent);
protected abstract bool isValid(Rent rent);
