WORST_CASE(?,O(n^2)) Solution: --------- a__f :: [A(3, 5) x A(0, 0)] -(4)-> A(3, 5) f :: [A(5, 5) x A(0, 0)] -(5)-> A(5, 5) f :: [A(0, 0) x A(0, 0)] -(0)-> A(0, 0) f :: [A(3, 5) x A(0, 0)] -(3)-> A(3, 5) g :: [A(8, 5)] -(3)-> A(3, 5) g :: [A(10, 5)] -(5)-> A(5, 5) g :: [A(0, 0)] -(0)-> A(0, 0) mark :: [A(5, 5)] -(1)-> A(3, 5) Cost Free Signatures: --------------------- a__f :: [A_cf(0, 0) x A_cf(0, 0)] -(0)-> A_cf(0, 0) a__f :: [A_cf(5, 0) x A_cf(0, 0)] -(5)-> A_cf(5, 0) f :: [A_cf(0, 0) x A_cf(0, 0)] -(0)-> A_cf(0, 0) f :: [A_cf(5, 0) x A_cf(0, 0)] -(5)-> A_cf(5, 0) g :: [A_cf(0, 0)] -(0)-> A_cf(0, 0) g :: [A_cf(5, 0)] -(5)-> A_cf(5, 0) mark :: [A_cf(0, 0)] -(0)-> A_cf(0, 0) mark :: [A_cf(5, 0)] -(1)-> A_cf(5, 0) Base Constructors: ------------------ f_A :: [A(1, 0) x A(0, 0)] -(1)-> A(1, 0) f_A :: [A(0, 1) x A(0, 0)] -(0)-> A(0, 1) g_A :: [A(1, 0)] -(1)-> A(1, 0) g_A :: [A(1, 1)] -(0)-> A(0, 1)