Suppose we have a PDA M that accepts a language L by final state. We want to build another PDA M' for the same language L but one that accepts by empty stack. Which of the following is true?
Suppose we have a PDA M that accepts a language L by final state. We want to build another PDA M' for the same language L but one that accepts by empty stack. Which of the following is true?
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Suppose we have a PDA M that accepts a language L by final state. We want to
build another PDA M' for the same language L but one that accepts by empty
stack. Which of the following is true?
A. This is not always possible for some PDA because some languages L cannot have
a PDA that accepts by empty stack.
B. We can always convert M into M' by just adding an extra state with some extra
transitions for popping the remaining symbols on the stack.
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