If you are coming back to C++, a great book is "C++ Crash Course" by Josh Lospinoso. Don't be put off by the jokey title and cartoons, it is comprehensive and g

If you are coming back to C++, a great book is "C++ Crash Course" by Josh Lospinoso. Don't be put off by the jokey title and cartoons, it is comprehensive and goes directly to modern c++ ground up (c++17) without going through the dreadful pre-modern c++ parts (ex. protected, friend, class OOP stuff). After that you can try Stroustrup's "Tour of C++", second edition for a more formal introduction to the language (C++20). You will be ready to tackle coding modern c++.