How to master C with knowledge of basic syntax?

Question

IT education

I know the basic syntax of C (loops, branches, variables, working with memory, structures and unions). I would like to master more complex elements, such as binary trees, linked lists, working with volatile variables, and so on, which is beyond the scope of writing hello world, in order to read understandable and competent code.

Answer 1

Little knowledge of data structures? Read books on data structures

Answer 2

I would like to master more complex elements, such as binary trees, linked lists, working with volatile variables, and so on, which is beyond the scope of writing hello world, in order to read understandable and competent code.

Knowledge of data structures does not apply to understandable and competent code.
Data structures are about basic things, not literacy and understandability of the code.
To learn, practice.