Preprocessor Directive: A package or someone else’s code we use to make our code easier to write.
Main Function: The necessary function needed to run C++ files. Without it, the file will crash.
Expression Statements: Statements that are used to output something in our code or show something in the terminal.
Declaration Statements: Statements that are used to store information or declare a value that can be used later on in our code.
Return Statement: Statement that is used to show if our code was exited and ran properly.