Bash and regex problem : check for tokens entered into a Coke vending machine
- by Michael Mao
Hi all:
Here is a "challenge question" I've got from Linux system programming lecture.
Any of the following strings will give you a Coke if you kick:
L = { aaaa, aab, aba, baa, bb, aaaa"a", aaaa"b", aab"a", … ab"b"a, ba"b"a, ab"bbbbbb"a, ... }
The letters shown in wrapped double quotes indicate coins that would have fallen through (but those…