Homework Answers
1.
Answer: TRUE
Because, Each production generates one a and one b otherwise empty string, So in string exactly same number of a's and b's.
2.
Grammer for non-palindromes:
The grammar:
Add Answer to:
CFG questions
1. True or false? Given G: S → aSbSÍ bSaS | λ, L(G) =...
help 3. Answer each part for the following CFG G (The * symbom in the derivation...
help
3. Answer each part for the following CFG G (The * symbom in the derivation means with any number of steps): R + XRXS S + aTb | b Ta T→ XTX | x | 6 X + ab (a) What are the variables of G? (b) What are the terminals of G? (c) Which is the start variable of G? (d) Give three strings in L(G) (e) Give three strings not in L(G) (f) True or False: T...
Please answer True or False on the following: 1. Let L = { w ε Σ^*...
Please answer True or False on the following: 1. Let L = { w ε Σ^* | w = w^R }, where Σ = {a, b}. In other words, L is the set of all palindromes (including the empty string). A palindrome is a string that reads the same from left-to-right as from right-to-left. Let w = aababbbabb. Is w ε L^* ? (that is, is w an element of the Kleene closure of L?) 2. Let L = {...
Hello, I need help solving these two computer science questions. 3. Give a CFG for each...
Hello, I need help solving these two computer science
questions.
3. Give a CFG for each of the following: (a) The language {0416 with a +b}. (b) All binary palindromes with exactly three 1's (such as 001010100). 4. Consider the following CFG with start state S: SOAS 1BS € A → OAA 1 B + 1BBO Determine the language generated by S. Justify your answer.
i designed cfg form describe L. S -> aaSb | aaaSb | abb can you convert...
i designed cfg form describe L.
S -> aaSb | aaaSb | abb
can you convert to cfg to pda and draw automata :)
Let L = {a0<j<i< 3;}.
Please answer any 7 of them ТОС Answer any 7 from the followings: 1. Regular expression...
Please answer any 7 of them
ТОС Answer any 7 from the followings: 1. Regular expression to NFA: i) ab(aUb)* ii) (aba U a)*ab 2. Explain and construct a generalized NFA, 3. NFA to regular expression 0 3 91 93 8 a 4. DFA to regular expression 011 5. Explain the rules of pumping lemma briefly with an example. 6. Give an example of right linear grammar and left linear grammar. 7. L(G) = {1*20 m >= 1 and >=1}....
1. (20 points) Given the following Grammar G, S->ASB A -> aAS | a | λ...
1. (20 points) Given the following Grammar G,
S->ASB
A -> aAS | a | λ
B -> SbS | A|bb
(a) Identify and remove the λ-productions.
(b) Identify and remove unit-productions from the result of
(a).
(c) Convert it to Chomsky Normal Form.
1. (20 points) Given the following Grammar G, S->ASB A -> AS | a 1a B -> Sbs | Albb (a) Identify and remove the -productions. (b) Identify and remove unit-productions from the result of (a)....
Automata and Computability Problems Please check my work. Make necessary edits/corrections to my work. Please add...
Automata and Computability Problems
Please check my work. Make necessary edits/corrections to my
work. Please add more detail to number 2 for better understanding
:)
1. Give a context-free grammar (CFG) for each of the following languages over the alphabet = (a, b): (a) All nonempty strings that start and end with the same symbol. 2. Answer each part for the following context-free grammar. I. II. III. IV. V. R> XRXS S -ать | bТа T → XTX | X...
Let G be the grammar: S → ASB|λ A→ a B → b (a) What is...
Let G be the grammar: S → ASB|λ A→ a B → b (a) What is L(G)? (b) Prove formally (so using induction on the length of the derivations) that L(G) is the set given in (a).
Give a context free grammar for the language L where L = {a"bam I n>:O and...
Give a context free grammar for the language L where L = {a"bam I n>:O and there exists k>-o such that m=2"k+n) 3. Give a nondeterministic pushdown automata that recognizes the set of strings in L from question 3 above. Acceptance should be by accept state. 4. 5 Give a context-free grammar for the set (abc il j or j -k) ie, the set of strings of a's followed by b's followed by c's, such that there are either a...
Consider the given CFG: S ⟶ a X a X a , X ⟶ a X...
Consider the given CFG: S ⟶ a X a X a , X ⟶ a X | b X | Λ What is the language this CFG generates? a) a language with all strings of at least 3 a's b) a language with all strings of a's and b's c) a language with all strings that start and end with a's with at most 3 a's d) a language with all strings of at most 3 a's e) None of...
help
3. Answer each part for the following CFG G (The * symbom in the derivation means with any number of steps): R + XRXS S + aTb | b Ta T→ XTX | x | 6 X + ab (a) What are the variables of G? (b) What are the terminals of G? (c) Which is the start variable of G? (d) Give three strings in L(G) (e) Give three strings not in L(G) (f) True or False: T...
Hello, I need help solving these two computer science
questions.
3. Give a CFG for each of the following: (a) The language {0416 with a +b}. (b) All binary palindromes with exactly three 1's (such as 001010100). 4. Consider the following CFG with start state S: SOAS 1BS € A → OAA 1 B + 1BBO Determine the language generated by S. Justify your answer.
i designed cfg form describe L.
S -> aaSb | aaaSb | abb
can you convert to cfg to pda and draw automata :)
Let L = {a0<j<i< 3;}.
Please answer any 7 of them
ТОС Answer any 7 from the followings: 1. Regular expression to NFA: i) ab(aUb)* ii) (aba U a)*ab 2. Explain and construct a generalized NFA, 3. NFA to regular expression 0 3 91 93 8 a 4. DFA to regular expression 011 5. Explain the rules of pumping lemma briefly with an example. 6. Give an example of right linear grammar and left linear grammar. 7. L(G) = {1*20 m >= 1 and >=1}....
1. (20 points) Given the following Grammar G,
S->ASB
A -> aAS | a | λ
B -> SbS | A|bb
(a) Identify and remove the λ-productions.
(b) Identify and remove unit-productions from the result of
(a).
(c) Convert it to Chomsky Normal Form.
1. (20 points) Given the following Grammar G, S->ASB A -> AS | a 1a B -> Sbs | Albb (a) Identify and remove the -productions. (b) Identify and remove unit-productions from the result of (a)....
Automata and Computability Problems
Please check my work. Make necessary edits/corrections to my
work. Please add more detail to number 2 for better understanding
:)
1. Give a context-free grammar (CFG) for each of the following languages over the alphabet = (a, b): (a) All nonempty strings that start and end with the same symbol. 2. Answer each part for the following context-free grammar. I. II. III. IV. V. R> XRXS S -ать | bТа T → XTX | X...
Give a context free grammar for the language L where L = {a"bam I n>:O and there exists k>-o such that m=2"k+n) 3. Give a nondeterministic pushdown automata that recognizes the set of strings in L from question 3 above. Acceptance should be by accept state. 4. 5 Give a context-free grammar for the set (abc il j or j -k) ie, the set of strings of a's followed by b's followed by c's, such that there are either a...
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