Answered: For the language, draw the…

Engineering

Computer Science

For the language, draw the corresponding DPDA. L ={x ∈{a, b}* | na (x) =2nb (x)}

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

See similar textbooks

Related questions

Q: Find a CFG that generates the language : L = {a i bj c jd i : i, j ≥ 1}

A: We are given a language which is a context free language and we are going to write context free…

Q: The language we are using here is in Racket. Please try tying each of the following (car '(11 12…

A: What do car and cdr do? That last line of the above should cause an error. Explain why the single…

Q: Consider a set of symbols = {abc}. (1) Find all strings in E* shorter than 3. (2) Let L = {1, b,…

A: set of symbols = {a,b,c}

Q: 4. Consider the following languages. • ANFAFIN = {(N) |N is an NFA and L(N) is finite} • EREX = {(R)…

A: Answer:- No,All strings of the form 10n are contained in L(N) (in addition to other strings as…

Q: L = { w ? { a, b, c, d }*| na(w), nb(w), nc(w), nd(w) ≥ 0, na(w)+nc(w)+nd(w) < nb(w) } Is L a…

A: The Pumping Lemma for Context-free Languages is a belonging that context-free languages have to…

Q: 042. Prove that the language L= (0"1n*1 |n> 0} is not regular. %3D

A: We are using Pumping Lemma for regular languages to prove given language is not regular.

Q: The homomorphism h is defined by h(a) = 01 and h(b) = 10. What is h(%%1%%2%%3%%4)?

A: A homomorphism is a mapping h with domain Σ ∗ for some alphabet Σ which preserves concatenation:h(v…

Q: A={w ∈{0, 1}* | w starts with a symbol and ends with the other symbol}

A: A={w ∈{0, 1}* | w starts with a symbol and ends with the other symbol} The state diagram for an…

Q: Let’s define languages: L1 = {wan | w is an arbitrary string containing a’s and b’s, of length…

A: L1= wa^n/ w is an arbitrary string containing a's and b's, of length n L2= {w/01^*0(11+00)^*}

Q: onstruct regular expressions over Σ = {0,1} representing the following languages: 1. (w | |w|= 3…

A: Regular Expressions: Regular Expressions are used to denote regular languages. An expression is…

Q: 3) Let = {a, b}. Given a regular expression, r = bb a + aa b. Find an NFA that accepts the E…

A: From the given regular expression r, we have to design a NFA to accept the language L(r). Also find…

Q: Construct a graphical representation of DFA that accepts L={w∈(a+b)*: na(w) is even, nb(w)>1} no…

A: Here, the given DFA is L={w∈(a+b)*: na(w) is even, nb(w)>1}The task is to draw the graphical…

Q: Giventhegrammar B-> BB | (B) | ε 1.Describe the language it generates 2.Show that it is ambiguous

A: 1. The language generated by the given grammar is L={ε, ( ) , (( )) , ( ) ( ), ((( ))) , (( ))((…

Q: 2. Prove that the language L(G) is not regular where G is the following cfg: G= ({S,A,B}, {a,b,c},…

A: Here we have to prove that given language is not regular. Grammar is given :…

Q: Show that L= {a": n>4} is regular. Show that the language L= {a": n> 0,n± 4} is regular.

A: ANSWER:-

Q: the first b. 3.The last symbol of the string is d. 4.Each a is immediately fo

A: Let L be the language over {a, b,c,d} accepting all strings so that: 1.All c’s occur before the…

Q: Give an dfa that accepts the language L ((a + b)∗b (a + bb)∗).

A: The DFA for the given language L ((a + b)∗b (a + bb)∗) is shown below:

Q: Give a regular expression that denotes the language of this automaton. . Show the derivation.

A: An expression that represents a regular language is termed as a regular expression. It consists of…

Q: Let F(x.y): "x is friend with y", N(x): "x is funny", W(x): "x is wise", R(x): "x is fair". The…

A: English is: Everyone has some friends who are not funny but wise and whom are fair is not friend…

Q: Let G = ({S,A,B,C,D,E,Z},(0,1),R,S), where R = {S → E | Z; E → A | C; A → 01B | 0A | ; B → 1B |…

A: Introduction: Here we are required to to perform the asked questions on given set G =…

Q: Let E = {a, b, #} and L = {w |w can be written as t#s#t with s, t e {a, b}*}. Show that L is not…

A: The answer is

Q: Show that L = {a"b²" : n ≥ 0} is a deterministic context-free language.

A: Given language L={a^nb^2n:n>=0} n a^nb^2n String 0 a^0b^0 epsilon(e) 1…

Q: Regular Expression and Languages: (a) Given the language A = {”a”, ”bb”} and B = {”d”}, what is the…

A: First lets understand how concatenation and or works on languages: AB : language B is concatenated…

Q: Consider the language L of strings over the alphabet Σ = {a, b} which contain an equal number of a’s…

A: CFG is a formal grammar which is used to generate the all possible strings in given formal…

Q: Give a regular expression for the smallest language Lover Σ = {a,b,c} such that EEL • aa EL Vr E L,…

A: A regular expression is a character sequence that describes a text search pattern. String-searching…

Q: 4. Consider the following languages. ANFAFIN = {{N) | N is an NFA and L(N) is finite} EREX = {(R) |…

A: Below is the answer to above question. I hope this will be helpful for you

Q: Proof that the language L1 = {a' b' c¹ | i≥ 1} is not Context Free.

A: The Answer is in step-2.

Q: (k) L= {w: na (w) ≤n₂ (w)}. Construct npda that accepts the following language on

A: Given language is, L= {w : na(w)<nb(w)} Set of input alphabets= {a, b} The language accepts the…

Q: Consider the language L of strings over the alphabet Σ = {a, b} which contain an equal number of a's…

A: By establishing a context-free grammar (CFG), it is possible to demonstrate the context-freeness of…

Q: show that L= {a^nb^m, n > m} is a deterministic context-free language.

A: To show that the language L = {a^n b^m | n > m} is a deterministic context-free language (DCFL),…

Q: Show that the language L- (a"b*c": n20; kz0) is not regular. Note: Use Pumping lemma

A: We know that the pumping lemma is used as a negativity test to check if the grammar is regular or…

Q: A={w ∈{0, 1}* | w does not contain the substring 0011} The state diagram for a DFA?

Q: Give a CFG that generates the language { ambkckdª | 2m ≤ n }.

A: Here is the context-free grammar (CFG) which does generates the language { a^mb^kc^kd^n | 2m <= n…

Q: For languages A and B over E, define the language A ÷ B as follows: A÷ B = {w E E* : there exists x…

A: The solution for the above-given question is given below:

Q: Let L be the language defined by the following regular expression 0(0 | 1)∗1(0 | 1)∗ Write 3…

A: The regular phrase 0(0 | 1)*1(0 | 1)* defines the language L. A group of strings with particular…

Q: For the language, draw the corresponding DPDA. L ={x ∈ {a, b}* | na (x) < nb (x)}.

A: The DPDA for the given language

Q: Create a Deterministic Finite Automaton (DFA) for the language L that is defined over the input…

A: - We have to examine the DFA according to the conditions and remake it if it's wrong.

Q: Give regular expression for the following language L2 L₂ = {anbm: n < 4,m ≤ 4}.

A: Introduction: A regular expression is a sequence of characters that define a pattern, which is used…

Question

For the language, draw the corresponding DPDA.

L ={x ∈{a, b}^* | n_a (x) =2n_b (x)}.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

:) Given the language L = {bamb"a, (ab)', aa: n, m > 0 and h 2 1}, find the regular expression r such that L(r) = L.
Let L be the language over ∑ = {0, 1, 2}. Give the length of L*.
For E = {a, b}, find regular expressions for the complement of the language L = L(aa'bb*).
O Given the language L = {(ba)m, amb", aa: m,n 2 0}, find the regular expression r such that L(r) = L.
Show that the following language is decidable by giving a high-level description of a decider M with L(M) = L. L = {(A)|A is a DFA over 2* and L(A) = E* }
Given: Language L2 = {w ϵ {a,b}* | w contains substring aab} Construct the DFA representing the given language L2. Assume the layout of the DFA is as follows: ->A->B->C->D*. That is, the number of states are four (4) and A is the starting state and D is the accepting state. What is the next state for input pair (B,b) in the constructed DFA? Choices A B C D
Please help me with this, I'm stuck...
Help me automation problem
Show that the language {amb n | m ≠ n} is context-free.
Evaluate the following lambda expressions using eager beta-reduction (use the standard interpretations for numbers and booleans wherever meeded). (a) ((Lx.x*x)5) (b) ((Ly.((Lx.x+y+z)3))2) (c) ( (Lv.(Lw.w)((Lx.x)(y(Lz.z)))) 14.3 Evaluate the following expressions. (you could use a Scheme interpreter) (a) (null ? ()) (b) (null ? '(a bede)) (c) (car '(a (b c) de)) (d) (cdr '(a (b c) de)) (e) (cadr '(a (bc) de))
Please show the steps for the below question
Let L1, L2, and L3 be languages over some alphabet. In each case below, two languages are given. Say what the relationship is between them. (Are they always equal? If not, is one always a subset of the other?) Give reasons for your answers, including counterexamples if appropriate. 1. L1(L20L3), L1L20LL3 2. LinL;, (L nL2)*