What to learn after the basics of C++?

Question

C++ / C#

I'm 15. Learned the basics of C++ (if it can be considered basic) OOP, templates, inheritance, polymorphism, file manipulation. What should I study next? In what direction to move?

Answer 1

Learned the basics of C++ (if it can be considered basic) OOP, templates, inheritance, polymorphism, p

Don't lie to yourself, you don't know it.
On the topic: if in applications, then Qt 100%, if in games, then C #.