WORST_CASE(?,O(n^2)) Solution: --------- c :: [A(0, 9) x A(1, 0)] -(1)-> A(1, 9) c :: [A(0, 0) x A(7, 0)] -(7)-> A(7, 0) f :: [A(1, 9)] -(1)-> A(7, 0) g :: [A(7, 0)] -(10)-> A(4, 4) s :: [A(0, 9)] -(9)-> A(0, 9) s :: [A(7, 0)] -(7)-> A(7, 0) s :: [A(1, 0)] -(1)-> A(1, 0) s :: [A(0, 0)] -(0)-> A(0, 0) Cost Free Signatures: --------------------- c :: [A_cf(0, 0) x A_cf(0, 0)] -(0)-> A_cf(0, 0) c :: [A_cf(0, 12) x A_cf(0, 0)] -(0)-> A_cf(0, 12) c :: [A_cf(0, 14) x A_cf(0, 0)] -(0)-> A_cf(0, 14) f :: [A_cf(0, 0)] -(0)-> A_cf(0, 0) f :: [A_cf(0, 14)] -(2)-> A_cf(0, 0) f :: [A_cf(0, 12)] -(0)-> A_cf(11, 11) f :: [A_cf(0, 14)] -(3)-> A_cf(0, 0) g :: [A_cf(0, 0)] -(0)-> A_cf(0, 0) g :: [A_cf(0, 0)] -(3)-> A_cf(0, 0) s :: [A_cf(0, 0)] -(0)-> A_cf(0, 0) s :: [A_cf(0, 12)] -(12)-> A_cf(0, 12) s :: [A_cf(0, 14)] -(14)-> A_cf(0, 14) Base Constructors: ------------------ c_A :: [A(0, 0) x A(1, 0)] -(1)-> A(1, 0) c_A :: [A(0, 1) x A(0, 0)] -(0)-> A(0, 1) s_A :: [A(1, 0)] -(1)-> A(1, 0) s_A :: [A(0, 1)] -(1)-> A(0, 1)