What is the minimum and maximum number of productions in Chomsky and Greibach Normal forms?

345 Views Asked by At

How many min and max number of productions will be required in Chomsky Normal Form(CNF) and Greibach Normal From(GNF) each if string length = n ?
I've heard somewhere that in GNF, minimum and max productions both are "n". Unable to understand this and have no idea about CNF. Someone please explain. I know the basics of GNF, CNF but unable to derive this formula intuitionally as well as mathematically.