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Let = {0,1} and let B be the collection of strings that contain at least one 1 in their second half. In other words, B = {uv u Є Σ*, ve Σ1Σ and |u||v|}. a. Give a PDA that recognizes B. b. Give a CFG that generates B.

Let = {0,1} and let B be the collection of strings that contain at least one 1 in their second half. In other words, B = {uv u Є Σ*, ve Σ1Σ and |u||v|}. a. Give a PDA that recognizes B. b. Give a CFG that generates B.

Database System Concepts
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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Hello, I've finished answering part A of question 2.47. For part B, I'm looking for help in converting the pushdown automaton solution from part A into a Context-Free Grammar (CFG). Could you assist me with this using the answer I provided earlier? The specifics for part A can be found in the attached photo. Thank you for your assistance!

1.A.# 0.A. # 0,# A 90 g1
Transcribed Image Text:1.A.# 0.A. # 0,# A 90 g1
2.47 Let = {0,1} and let B be the collection of strings that contain at least one 1 in their second half. In other words, B = {uv u Є Σ*, v E Σ*1Σ and lu > v}. a. Give a PDA that recognizes B. b. Give a CFG that generates B.
Transcribed Image Text:2.47 Let = {0,1} and let B be the collection of strings that contain at least one 1 in their second half. In other words, B = {uv u Є Σ*, v E Σ*1Σ and lu > v}. a. Give a PDA that recognizes B. b. Give a CFG that generates B.
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