Design a customized Matrix.

Design a customized iterator.

Design a customized vector container.

Also known as virtual function table, dispatch table.

Slicing in C++ and how to prevent it.

Prevent C++ implicit conversion.

C-style casting, static casting, dynamic casting, reinterept casting

Static variables/functions, static in the context of class/struct

Virtual destructor is used to prevent memory leak in the context of polymorphism.

Virtual function, pure virtual function, abstract class