The language generated by the following C-F grammarA → aA | A B → bB | AC → CC | AS → ABC | dis {ak bmc+d|k, m, n E N}. To transform the above C-F grammar to a one-state empty-stack PDA so that the accepted language of the PDA is the same as the language generatedby this C-F grammar, we need to construct a set of specific instructions for this PDA. Threeinstructions have already been constructed below. Construct the remaining instructions forthis PDA in the following blanks. You might not need all the provided blanks.(0, a, a, pop, 0)(0, b, b, pop, 0)(0, c, c, pop, 0)(0, d, d, pop, 0)

To construct the remaining instructions for a one-state empty-stack PDA that recognizes the language…

Answered: The language generated by the following…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Similar questions

Construct a PDA with only three states for the following context free grammar. (Yes, the book likes to use more states. Please do it with three. You will need to push multiple symbols to the stack at once.) S → AxA | By | zC A → B | a B → C | b C → SS | c| ɛ
Context-free grammars (CFGs) and pushdown automata (PDA) Convert the CFG below with terminals {0,1,2}, non-terminals {A,B}, and start symbol A, into a PDA by empty stack. Explain the intuition of why/how this conversion works. A → 0 A 1 | 1 A 0 | B 1 B → ε | 2 B
Be the P-Stack Automaton = ({g}, {a,b, c}, {A, B, X,Y, Z}, 8, q, Z) a, Z/e a, Z/X b, A/BA b, B/e b, X/€ c, X/e c, A/e c, X/Y c, Y/e c, Y/Y Be the grammar G S → a| aAB + DC | bBB В — ВС | С А- D c|cD (a). Is the statement L(P) = L(G) correct? Justify your answer. Could the language recognized by Grammar G be recognized (b). by a Finite Automaton? Justify your answer.
Let G = (V, E, R, S) be a grammar with V= {S, H, Gm J}; = {h, g. j}; and the set of rules: H>h | hJG G> Gg | Sg | HgJ J→ jH | HHJ| Jj Convert this grammar to a PDA using the method we described.
Convert the grammar S -→ aSb|A. A → bSa|S|A to a pda that accepts the same language by empty stack.
The following grammar is an indirect left recursive grammar S→ Bb a B→ Salb Strings of the language generated by this grammar are of the following form: L= {a(w)m, bb(w)" | w = , m, n EN } This indirect left recursive grammar can be transformed to a right recursive grammar as follows: S T → This right recursive grammar is an LL( ) grammar.
Computer Science Consider the grammar G2: S - E E -E +T E - E•T E - T T - id Generate the input string id + id • id using bottom – up parsing approach and construct the derivation tree for the input string. Give the stack implementation of the configurations of the shift- reduce parser for the input string id + id • id according to the expression of the given grammar G2.
4. Given the context-free grammar S-> aB | bA A-> as | bAA | a B-> bS | aBB | b a. Give a left-most derivation of the string abba. b. Construct a PDA that simulates the grammar, that is, the rules of the grammar must be part of the machine. c. Trace the machine using your left-most derivation of string abba. Show the stack contents.
Consider a grammar for expressions is defined as follows:<assign> → <id> = <expr><id> → A | B | C | D<expr> → <id> + <expr>| <id> * <expr>| ( <expr> )| <id>Give a recursive descent algorithm for the BNF defined above.You may abstract away some details and are expected to make your answer using pseudo code.
Consider the grammar G where the start symbol isSwitha set of non-terminals{S A}, a set of terminals{a b c d}, and with the followingproductions/rules. Create a parsing table and show the steps of a parsing program(changes in stack, input, output) while verifying the inputcadwith the grammar G. S→cAd A→ab|a
Design a PDA for the following language: L = {0*1³ | 0 < i < j < 2i}. Hint: remember we showed PDAS both for {a"b"} and {a"b?"}. However, to allow the string to have that range of number of b's, you need to use the nondeterminism: for each 0 push a symbol in the stack and allow the PDA to non-deterministically choose to match 1 or 2 b's to each a.
3. Let L = {abcm | n,m E N}. Create a context-free grammar for L starting with non-terminal S. 4. b.A: push(E) b,X; push(B) a.A: push(A) a,X; push(A) Consider the given PDA with bottom stack symbol X. It corresponds to a regular language. Create a regular expression for the language accepted by this PDA. A.B: nop A, E; nop c.B:nop q1

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