I'm my experience they do. They know the cost of using a list instead of a hashmap, know the difference between a bubble sort and a quick sort, know the differe

I'm my experience they do. They know the cost of using a list instead of a hashmap, know the difference between a bubble sort and a quick sort, know the difference between a binary tree and a linked list. And for 99.9% of the job this is more what you need. I wísh they know more about composition instead of inheritance...