Preprocessor Directive:
Declares that we are including a library of code in our program, in this case iostream lets us output to the terminal.
Main Function:
The ‘main’ body of our code, this is the home for all of our statements.
Expression Statements:
These are statements that are output to the terminal.
Declaration Statements:
Statements that create variables and give them value.
Return Statement:
Returns an integer to the main function at the end of our program.