$8\mathrm{.}9($State Assignment$)$ One method for state assignment is to

exhaustively enumerate all the possible state assignments.

Given the traffic$-$light controller symbolic state table of

Figure $8\mathrm{.}24,$ use a logic minimization tool to evaluate all $24$

possible $2-$bit encodings of the states $($alternatively$,$ choose

two to four random assignments and derive the logic by

hand$).$ Using literal count as your metric, which is the best

encoding?

Figure $8\mathrm{.}24$ Traffic light controller symbolic state transition table.