Find a regular grammar for each of the following regular expressions. a. a + b. b. a + bc. c. a + b*. d. ab* + c. e. ab* + bc*. f. a*bc* + ac.

Q: (b) Rewrite the grammar below to make it unambiguous. -> | ɛ -> 01 | 1 | 0 1

A: The grammar is said to be an ambiguous grammar when it is both left recursive and right recursive.…

Q: 3. Write a program in C++ to check whether a string belongs to a grammar or not for the following…

A: 1.Write a C++ program to test whether a given digit is valid or not by entering on output your ID to…

Q: 4. Given the grammar for the arithmetic expression as below: E E+T|E-T |T T= T*F|T/F |F E: number |…

A: logic:- E->E+T            T->T*F            E->T             F-> Number

Q: Prove that the following grammar is ambiguous: → → + [ → a | b | c

A: Given grammer is  <start> -> <A> <A> -> <A> + <A> | <id>…

Q: b. Begin with the grammar G ({a, b}, {S, A, B, D, E}, 8, S) 8 = {S→ ABb | AB A→ aA | Db | a| ɛ B→…

A: The CFGs into Chomsky Normal Form(CNF)

Q: Consider the language L defined by these rewrite rules S->A | AX X->ABY | AB Y->ABCY | ABC BA ->…

A: Lets see the solution in the next steps

Q: Consider the following grammar and input string, S → S+S S → S*S S → (S) S → a Input string:…

A: SHIFT REDUCE PARSING: The task of parsing the string on the basis of the given production rules of…

Q: Consider the following grammar and input string, S → S+S S → S*S S → (S) S → a Input string:…

A: Shift reduce parsing is a process of reducing a string to the start symbol of a grammar by the use…

Q: 4. Write a regular expression (RE) to define the language of all strings that start with 'bb' and…

A: As per our guidelines, only 3 sub parts will be answered at a time. So, please repost the remaining…

Q: Consider the following grammar: → | → a a | → b b | bb → ab | ab → ba | ba Rewrite this…

A: The given grammar is:…

Q: Describe in english what this grammar means ->   -> a | a -> b | b

A: <S> -> <A> <B> <C>  String that begin and end with same symbol.…

Q: Write a program to compute FIRST for the following grammar? S --> aAB A --> b B--> d

A: If the compiler would have come to know in advance, that what is the “first character of the string…

Q: Write a program to compute FIRST for the following grammar ? S --> aAB A --> b B--> d

A: I have provided solution in step 2.

Q: Describe, in English, the language defined by the following grammar: → → a | a →b | b → E

A: The given grammar will accept string like:-- ab aabb abb abbbb aaaaaab aaab abbbb aaab aaaabbbbb…

Q: Construct a PDA for the following grammar. E → E +T | T T →T × F | F F → (E) | a

A: V = { E, T, F} // Set of Non-Terminal symbols Produces the PDA 6-moves:   #(8== delta)    1. 8(q,…

Q: from the following grammar write a program c++ to validate the string fast or fat  A--> fSt S-->…

A: Given question has asked to write a c++ program to validate the string fast or fat from following…

Q: Let E = {a, b, c}. Write a grammar that generates the language: %3D L = {c"ww" a":n > 0, m > 0, w E…

A: To do: Write a grammar that generates a language

Q: Find context-free grammars for the following languages: (a) L = anbn, n is even.  (b) L = anbn, n…

A: This is a structured grammar that is used in a given formal language to create all various concepts…

Q: Consider the following grammar and input string, S → S+S S → S-S S → (S) S → a Input string:…

A: SHIFT REDUCE PARSING: Shift reduce parsing is the process parsing the string on the basis of the…

Q: Label the following statement as True (T) or False (F):  The following context-free grammar is in…

A: Given CFG: S → XY | XZ   X → XX | XY | aa   Y → YY | b   Z → ZX | ε

Q: *.The following grammar is E>E+T|T T>T*F[F F> id a) not Unambiguous O

A: The given grammar is Unambiguous. Def of Unambiguous A grammar can be unambiguous if the grammar…

Q: Consider the following grammar G: S> XZ X→ abXba |e |Y Y> cYd|cd z> abz| € a. What are the variables…

A: Please give positive ratings for my efforts.    As per guidelines, we are allowed to answer only the…

Q: Describe in english what this grammar means   ->     -> a | a   -> b | b   -> c | c

A: 1. string that begin and end with same symbol . 2. all old and even length palindromes . 3. all old…

Q: Prove that the following grammar is ambiguous:   à à + | à a | b | C

A: Below is the answer:

Q: Consider the following grammar: S➞ A A➞ aBA' A'➞ dA'/∈ B➞ b C➞ g What is the follow of C? 1. Ø 2.…

A: To compute First(A) for all nonterminals A, apply following rules until nothing can be added to…

Q: Consider the grammar G defined below: S → aSa | Aa | abbB A → bA |A B → aB | bb Select all the…

A: We are given a grammar G along with its productions and we are going to understand to which class of…

Q: Design a context free grammar for the following language. L = { 0"1" |m,n>= 0 , n !=m}

A: Given: CFG for the given Language L={0,1|0m1n0m1n} The solution for above problem was shown…

Q: Convert the following expression into a regular grammar (unit productions are allowed): a(bc)* + (a…

A: Regular Grammar: Regular grammars are exist for the regular languages. Regular grammars are convey…

Q: (d) Rewrite the three rules to make the grammar unambiguous. -> and -> ->

A: Given grammar is, <np>→<np> and <np><np>→<a>…

Q: 7 Indicate which string can be represented by the following context-free grammar: G = ({S, A}, {a,…

A: The string generated by the given grammar is: aaaabbb Is the correct option

Q: 3. Given the grammar for the arithmetic expression as below: E E+T|E-T |T T T*F|T/F |F F mumber |…

A: Parse tree for "8-5*3" for the given grammar for arithmetic expression is in step2.

Q: Obtain GNF equivalent to the grammar E⇒E+T|T T→ T*F|F F→ (E)| a

A: given Data

Q: You are given the following context-free grammar: s + EGFH E + eE[e F + f\E G + 9 H + hH |hh|e…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: One of the following grammar is a regular grammar: a. S → aA b. S → aA A → aAb| b A → BA| b d. S →…

A: The answer is as follows:-

Q: The equivalent simplified grammar for the following grammar is S aA| aBB A aaA | & B bB | bbC C B

A: Introduction

Q: The equivalent simplified grammar for the following grammar is S aA | aBB A aaA | & B bB | bbC C B

A: In this question, we are asked about to simplify the given grammar. For simplification, we have to…

Q: Write a context free grammar generating the language{0^(3a) 1 ^ (2b) 0^ (2b) 1^ (a) :a >0, b…

A: Answer :  {0^3a 1^2b 0^2b 1^a :a >0, b >0} Context Free GrammarS -> 000S1 | 000A1A ->…

Q: Show that the following grammar is ambiguous. S → AB | C A → 11 |0 В — 22 10 С — 0С10

A: We are going to see if the given grammar is ambiguous. TIP- If more than 1 parse tree exist for same…

Q: 1. Check the grammar below and justify whether the grammar is LL(1) or not: U+Ta U U+TaT T> a TbT T…

A: Here in this question we ha e given a grammer and we have asked to find weather the grammer is LL(1)…

Q: from the following grammar write a program to validate the string fast or fat . A--> fSt S--> as |…

A: From the following grammar write a program to validate the string fast or fat . A--> fSt S-->…

Q: from the following grammar write a program to validate the string fast or fat . A--> fSt S--> as |…

A: Since no programming language is mentioned, I am using python. Algorithm: Start Read a string Write…

Q: from the following grammar write a program to validate the string fast or fat . A--> fSt S--> as |…

A: Since no programming language is mentioned, I am using c++ Algorithm: Start Read a string  If the…

Q: Write derivations for four strings of various lengths and describe what is the language generated,…

A: Given Grammer S-> aSaa|B B->bB The language generated by the above grammar is Step1:…

Q: Prove that the following grammar is ambiguous: → → + | → A | B | C

A:

Q: Find a context-free grammar that generates the language accepted by the following NPDA. b, A; A a,…

A: The Context free grammar for the given NPDA

Q: You are given the following context free grammar (CFG), E {0,1,2}: S+X |Y|XY X + 011 |0X1 e Y + 2|…

A:

Q: 3 Question One of the following grammar is a simple grammar (S-Grammar): b. S → as| aA A → ÞA| a a.…

A: GIVEN:

Q: S → aS | AB | B A → abA | ab B → BB | ba Using top-down parsing, find the leftmost derivation in…

A: Parsing Tree The parse tree is a clear explanation of the symbol. The sign can be either ending or…

Q: S → aS | AB | B A → abA | ab B → BB | ba Using top-down parsing, find the leftmost derivation in…

A: Left Most Derivation of grammar is as follows:  String: aababba S -> aS      ->aAB(using…

Q: Prove that the following grammar is ambiguous S--> S S S*S |!S | (S) alb by giving two different…

A: Below is the answer to the above question. I hope this will be helpful for you...