Got most reputation for adding a three state finite automaton.
22 Algorithms computing if a number is a multiple of 3 jan 11 '13
10 Can a tree be traversed without recursion, stack, or queue, and just a handful of pointers? nov 8 '13
8 Constructing all context-free languages from a set of base languages and closure properties? sep 15
8 PDA with 2 stacks may 10 '13