Twice the Stuff, How Much More Work?

Big-O answers one question about any piece of code: if there's twice as much stuff, how much more work is it? Most of the time the answer is the same, twice, or four times.

Updated

Cheat sheet: Twice the Stuff, How Much More Work?
Category
Data Structures
Level
Novice
Tags
Algorithm, Big-O Notation, Growth Rate, software-development