The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the form of a String of B and A characters. The first character in the decree specifies whether a must come ( B )Before b in the new alphabet or ( A )After b . The second character determines the relative placement of b and c , etc. So, for example, \"BAA\" means that a must come Before b , b must come After c , and c must come After d .

Any letters beyond these requirements are to be excluded, so if the decree specifies k comparisons then the new alphabet will contain the first k+1 lowercase letters of the current alphabet.

Create a class Alphabet that contains the method choices that takes the decree as input and returns the number of possible new alphabets that conform to the decree. If more than 1,000,000,000 are possible, return -1.

Definition -The government of a small but important AMA ntry has decided that the alphabet needs to be st reamlined and reordered. Uppercase letters wi ll be eliminated. They will issue a royal decree in the form of a String of B and A characters. The f irst character in the decree specifies whether a must come (B) Before b in the new alphabet or (A) After b. The second character determines the re lative placement of b and c, etc. So, for example, "BAA" means that a must come Before b, After must come b c, and c d After must come. Any letters beyond these requirements are to be excluded. so if the decree specifies k comparisons then th e new alphabet will contain the first k a lowerca se current letters of the alphabet. Create a 10:48 ss Alphabet that contains the method choices th at the de