That's why you use a growth factor, say doubling the backing array when you need to grow. That makes the amortized cost of adding an item constant. The only ca

That's why you use a growth factor, say doubling the backing array when you need to grow. That makes the amortized cost of adding an item constant. The only case where a LL may be preferable are when you care about performance of inserting/deleting in the middle of a list.