3.3 Given the grammar exp → exp addop term | term addop → + | - term → term mulop factor | factor mulop → * factor → ( exp ) | number write down leftmost derivations, parse trees, and abstract syntax trees for the following

Q: 3. Give a context-free grammars that generates the following languages: (a) {w | w contains at least…

A: Context free grammar that generates: (a){w | contains at least three 1s} Ans: The context free…

Q: Let E = {0,1, 2, 3}. Write a grammar that generates the language: L = {w2" 3m wR:w E {0, 1}"and n >…

A: Given: ∑ = {0,1,2,3} Language L = {w2n3mwR:w ∈ {0,1}+ ans n>m≥0}

Q: Consider the following grammar:   à a b à b | b à a | a   Which of the following…

A: The given grammar ::   s -> A a B b A -> A b | b B -> a B | a   Options for the sentence…

Q: Let L2 be the language defined as follows: 12 =( 0"1"0" | n, m20} Which of the following…

A: Answer Option A= >  A -> 0A0 | B B -> 1B | ∈

Q: Q1-Consider the following grammar: → a c | → C | C → d Which of the following sentences are in…

A:

Q: 1. Give context-free grammars to generate the following languages: (a) L1 = {vuvkw : u, v, w E {0,…

A: A context free grammar is in the form  CFG {N,T,P,S} where N- set of Non terminal symbols T- set of…

Q: Consider the following grammar: → a b > b | b b Which of the following sentences are in the…

A: Given that, S→AaBbA→Ab|bB→b This grammar contains variables S, A and B and terminals a, b.

Q: Given the following grammar and the right sentential form, draw a parse tree and show the phrases…

A: Parse Tree: A parse tree or parsing tree or derivation tree or concrete syntax tree is an ordered,…

Q: 1. Consider the following Grammar S- E E – TE' E' → +E |-E | ɛ | F → id | num T - FT' T' → *T | /T |…

A: Ambiguous Grammar : A grammar is ambiguous if we have more than one way of processing any…

Q: Consider the following grammar.  ::= , |    ::=   ::= A | Y | B | U  ::= 1|2|3|4 Which of…

A:

Q: Please use --> to represent the arrow in production rules. Write each production rule in a new line.…

A: In below  figure shows the production rule:

Q: a) Consider the following grammar and eliminate left recursion- A→ Bxp B→ Box|v|xy P→P+ P P→ (P) | F…

A: Left Recursive Grammer: The recursive grammar is said to be left recursive if the leftmost variable…

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: Consider the following grammar: S➞ ACB/CbB/Ba A➞ da/BC B➞ g/∈ C➞ h/∈ What is the follow of B?

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

Q: Let E = {0, 1, 2, 3}. Write a grammar that generates the language: L = {w2" 3m wR: wE {0, 1}" and n…

A: The Answer is

Q: *) Show parse trees and abstract syntax trees for: a) a +b * c * d * e * f b) а - b/c/d+e- c) a / (b…

A: Let see the step by step explanation below-

Q: Consider the following grammar: S → - F | F F →  D | D . D D →  N | N D N → 0 | 1 | 2 | 3 | 4 |…

A: Given grammar S → - F | F F →  D | D . D D →  N | N D N → 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 To…

Q: 3. What is parsing? Consider the following grammar- S- TL T int float L+L, id id Parse the following…

A: Here is the answer:-

Q: 3. Consider the following grammar: a b b | b a | a Which of the following sentences are in…

A:

Q: Consider the grammar S ⟶⟶ aSc |S1 S1 ⟶⟶ b S1cc |?λ This grammar will generate the following…

A: The given grammar S ⟶ aSc |S1S1 ⟶ b S1cc |?λ

Q: 1. Construct a Context Free Grammar that only accepts strings maintaining the following property: L…

A: Context-Free Grammar (CFG) stands for grammar in Theory of computation. It is the program used to…

Q: Let L, and L2 be the languages defined as follows: L1 ={ xe{0,1}* | x has an odd number of Os}. L2…

A: In this question, we have two languages L1 and L2 and asked the grammar for L1 U L2. L1 is a regular…

Q: 13-Write a grammar for the language consisting of strings that have n copies of the letter a…

A: As per the above given question we the grammar is as follows: S-> abc/aAbc Ab->bA Ac->Bbcc…

Q: Consider the following grammar: S➞ ACB/CbB/Ba A➞ da/BC B➞ g/∈ C➞ h/∈ What is the first of B? 1. {…

A: First of B:production rule of B:B -> g/e //here e is epsilong is terminale is epsilon so, from…

Q: Select all the grammars below which correctly generate the language: L = {c"aab"bbwwR :w ɛ {a,b}*, n…

A: * in theory of computation indicates 0 or more occurrences. If considered 0 occurrence then L…

Q: Write a grammar for the language consisting of strings that have n copies of the letter "a" followed…

A: In this question, we have a language which contain strings that have n copies of the letter "a"…

Q: Construct Context Free Grammars (CFGS) for each of the following languages. i. L1 = { a"b?n | i,…

A: We are given a language, L1= {anb2n| i,n>=0} which states that - number of b's in the string must…

Q: Write a context-free grammar that accepts the language L = anbmck, n > m, m ≥ 0, k > 1. The alphabet…

A: L = anbmck, n > m, m ≥ 0, k > 1. There are three ‘cases’ to consider: 1. More a’s than b’s.…

Q: Consider the Context-Free Grammar: G = ({S, A, B}, {a, b}, P, S) P = {S > aBS| aBaA | ɛ, A> aa| BSB,…

A: The given grammar is: G = ({S, A, B}, {a, b), P, S) P = {SaBS aBaA | E, A–>aa| BSB, B–>ASa bb}

Q: Qn.5 Let G = (V = {S,T},E = {a,b}, P, S) be a context-free grammar, whose productions P are defined…

A: A derivation of the string using a given context-free grammar

Q: Construct a reduced grammar equivalent to the grammar G = {N, T, S, P} Where N= {S, A, C, D, E} T =…

A: the following answer is in below step

Q: Please help 8. The known Grammar as follows: S à AX X à or AX | ️(epsilon) A à CY Y à and CY |…

A: Given grammar is, S→AXX→A or X|εA→CYY→C and Y|εC→not C|(S)|0|1 Given string is: (0 or 1) and 1

Q: Consider the language L=(a*+b)*. Which of the following grammar depicts the language L? a) S → aS…

A: Explanation:  In language L, having a number of a's can be 0 but the number of b's is always more…

Q: Consider the language L=(a*+b)*. Which of the following grammar depicts the language L? a) S → aS…

A: (a*+b)* means zero or more occurrence of (a*+b). Here even empty string is in the language. But in…

Q: 11-Given the following grammar and the right sentential form, draw a parse tree and show the phrases…

A: Recall the meaning of the term  The derivative and the most reliable Difference, man.  • Each of the…

Q: Consider the context-free grammar S → ABS | AB A → aA | a B → bB | b Give a leftmost derivation of…

A: According to the Question below the Solution:

Q: Construct a PDA for the following grammar. E → E +T | T T → T × F | F F → (E) | a Note: First, you…

A: A pushdown automata for the given grammar

Q: 05. Consider the following context free grammars 1. S → aSbb | a 2. S aSA | a A → bB B b

A: The answer is

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: 3. Given the following grammar and its right sentential form of bBab, draw a parse tree and show the…

A: a. aaAbb Parse Tree:   S / | \ a A b…

Q: Consider the following grammar: E? T + E {print (“*”)} E? T { } T?int {print(“num”)} T? int * T…

A: Solution: figure 1:

Q: at the following is context free by deriving the context free grammars gener {zczR :z E {a, b}*}

A: CFG is known as context free grammar. It's used to make all possible patterns of string from the…

Q: Given the following grammar S - Bc|D B B - ab|cS D - d|ɛ

A: For the start symbol S, place $ in Follow(S). For any production rule A → αB, Follow(B) = Follow(A)…

Q: Consider the following grammar: S → abB, A → aaBb, B → bbAa, A → ε. Derive abbbaabba from the…

A:

Q: Consider the following grammar:       S → abB, A → aaBb,     B → bbAa, A → ε.   Derive abbbaabba…

A: Answer :

Q: Eliminate the variable B from the grammar S→ aSB | bB, B→ aA | b

A: This can be done by remove the one of the rules from the grammar.

Q: Show that following grammars are ambiguous (or not ambiguous)  a.   S → aSS S → b

A: If for a given input string, more than one leftmost derivation or more than one rightmost derivation…

Q: Show that following grammars are ambiguous (or not ambiguous) a. S → aSS S → b

A: A grammar is said to be ambiguous if there exists more than one leftmost derivation or more than one…

Q: Consider the context-free grammar (CFG) with the rules ** E is the start variable ** E - E + TIE-TIT…

A: Answer 1 : Parse Tree for the String ((((a))))

Q: Consider the context-free grammar (CFG) with the rules ** E is the start variable ** E - E +TIE-TIT…

A: