Where can I find C practice?

Question

C++ / C#

I study C, I took a semester language course at the university. I want to move on, but I don’t know where to get good tasks (preferably with a solution so that you can analyze your code for errors).
Recommend C practicum resources/books. :)

Answer 1

If you are in St. Petersburg and are still interested in microcontroller programming (or want to start), you can contact me. Free courses to grow current students into software engineers.

Answer 2

According to C, there is nothing sensible. Unless it's open source or a university signal processing project or some OS or Intel. It is clear that writing "go fix a bug in the linux kernel" is not an option. You can sit down to solve some Skien, on the edge.