Namespaces in C++

• The concept of namespaces is introduced, explaining how they help avoid naming conflicts in larger programs.

Functions and the Main Method

• C++ program must have a main method, which serves as the entry point for execution.

• It discusses the importance of meaningful naming conventions for functions and methods.

Return Values and Exit Codes

• The significance of return values in functions is highlighted, including the common practice of returning zero to indicate successful execution.