Hiya Skeleton Crew,

Just as a heads up, I’m still workin out some website-related kinks:

• The auto-grader’s been throwin up too many false “wrong”s: I imagine it’s pretty annoying to answer somethin like flossing instead of floss & then get the big red ❌ after ya submit! Youse guys are always welcome to shoot me an email if ya don’t agree with how somethin’s been graded – though rest assured that I do go back & fix up those errors as best I can.
• I’ve been addin categories to the questions! This is mostly invisible to youse all— EXCEPT if yer a SUPER SPECIAL SECRET SKELETON MATEY (i.e., a paid subscriber)! In that case, ya can scroll to the bottom of yer profile to see how ya’ve fared historically in each category!! It’s a bit of an ongoin process to get the categories sorted for each question in the ol’ archive, so the numbers there might be in flux for the next few days & weeks.

Trivia 1

Rachel Whiteread’s House, Eduardo Chillida’s Elogio del Horizonte, Yevgeny Vuchetich’s The Motherland Calls, & several^[1] of the spomeniks of the former Yugoslavia are all sculptures made in primarily what medium?

Trivia 2

When it comes to computers, some programmin languages are compiled – which just means there’s a program called a compiler that reads through whatever code ya write, then crunches it down into the literal ones & zeros that yer computer’s CPU actually understands. That’s why if ya ever open up an .EXE file in a text editor, it’ll just look like a load of gibberish instead of C++ code or whatever. In other words: the programming language is for humans to write, the .EXE is for computers to read, & the compiler is what gets ya from one to the next!

Anyways, one of the things that the compiler does when it looks at a source code file is it organizes the syntax of the code ya wrote into a tree-like data structure. (It’s basically the computer’s equivalent of diagrammin a sentence, if ya ever did that in grade school.)

This data structure’s called an AST, where S stands for Syntax & T stands for Tree. (Sometimes it’s also called a parse tree.) But what does the A in AST stand for?