WORST_CASE(?,O(n^1)) Solution: --------- "a__c" :: ["A"(0)] -(1)-> "A"(0) "a__f" :: ["A"(0)] -(2)-> "A"(0) "a__h" :: ["A"(0)] -(2)-> "A"(0) "c" :: ["A"(3)] -(3)-> "A"(3) "c" :: ["A"(0)] -(0)-> "A"(0) "d" :: ["A"(3)] -(3)-> "A"(3) "d" :: ["A"(0)] -(0)-> "A"(0) "f" :: ["A"(0)] -(0)-> "A"(0) "f" :: ["A"(3)] -(3)-> "A"(3) "g" :: ["A"(3)] -(3)-> "A"(3) "g" :: ["A"(0)] -(0)-> "A"(0) "h" :: ["A"(3)] -(3)-> "A"(3) "h" :: ["A"(0)] -(0)-> "A"(0) "mark" :: ["A"(3)] -(0)-> "A"(0) Cost Free Signatures: --------------------- Base Constructors: ------------------