Problem 1 language into one of the following classes: For each of the following five languages, give the best possible classification of that regular context-free decidable Turing recognizable not Turing recognizable Your classification of a language is the best possible if the class which you indicate contains that language, but no other listed class which is a proper subset of your class contains that language. 1. The language consisting of strings of the form a" a"e" where n is a positive integer. Answer: 2. The language consisting of strings of the form a"ba" where n is a positive integer. Answer: 3. The language consisting of all binary strings. Answer:

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
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Problem 1
language into one of the following classes:
For each of the following five languages, give the best possible classification of that
regular
context-free
decidable
Turing recognizable
not Turing recognizable
Your classification of a language is the best possible if the class which you indicate contains that language, but no
other listed class which is a proper subset of your class contains that language.
1. The language consisting of strings of the form a" a"c" where n is a positive integer.dhura
Answer:
2. The language consisting of strings of the form a"ba" where n is a positive integer.
Answer:
3. The language consisting of all binary strings.
Answer:
I 2008 CER
astion du gharelu
4. The language consisting of pairs (M, w), where M is (the binary code for) a Turing machine that diverges on
input w.
Answer:
5. The language consisting of pairs (M, w), where M is (the binary code for) a Turing machine that halts and
rejects on input w.
Answer:
100 20 40 80 90 10
Transcribed Image Text:Problem 1 language into one of the following classes: For each of the following five languages, give the best possible classification of that regular context-free decidable Turing recognizable not Turing recognizable Your classification of a language is the best possible if the class which you indicate contains that language, but no other listed class which is a proper subset of your class contains that language. 1. The language consisting of strings of the form a" a"c" where n is a positive integer.dhura Answer: 2. The language consisting of strings of the form a"ba" where n is a positive integer. Answer: 3. The language consisting of all binary strings. Answer: I 2008 CER astion du gharelu 4. The language consisting of pairs (M, w), where M is (the binary code for) a Turing machine that diverges on input w. Answer: 5. The language consisting of pairs (M, w), where M is (the binary code for) a Turing machine that halts and rejects on input w. Answer: 100 20 40 80 90 10
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