The shortest solutions to CodingBat problems that I can come up with.
- java and python solutions
- explanations for all uses of regex (regexplanations?) are included
- doc comments for everything
- nearly all of the solutions are one-liners
- some have line breaks for readability though
About imports
CodingBat automatically imports java.util.* and java.util.stream.Collectors,
so for anything that's not those, i use fully qualified names.