Behavioral Design Patterns in C++ - Basic Example-2

The video tutorial explains the implementation of the state design pattern, focusing on creating context and state classes. It covers the addition of concrete state classes and the main function, highlighting the state transitions. The tutorial also addresses issues like memory management and suggests solutions such as using smart pointers or singletons. A class diagram is generated to illustrate the design pattern.

Explain how state transitions occur between concrete state A and concrete state B.

What issues arise from not deleting instances created on the heap in the state design pattern?