3 ms·
They are clearly grouping "Tree a", but do they mean that it is optional?
by HelloNurse 7y ago
They are clearly grouping "Tree a", but do they mean that it is optional?
- the_af 7y agoWhy would you assume it's optional? In which popular programming language do parentheses mean "this is optional"? When you read a formula such as (x + 1) / 2 do you assume part of it is optional?