If you are using Unicode, getting a character out of a string actually can be a bit difficult to do correctly (depending on the language).
I like the idea of using trains (and track switches) to represent a state machine to kids. I can think of lots of fun puzzles using that form that would be fun for adults too.
If you are using Unicode, getting a character out of a string actually can be a bit difficult to do correctly (depending on the language).
I like the idea of using trains (and track switches) to represent a state machine to kids. I can think of lots of fun puzzles using that form that would be fun for adults too.