Consider the language L of strings over the alphabet Σ = {a, b} which contain an equal number of a's and b's, and the set of b's is consecutive in the string, e.g., ab, abba, aabb, abbbaa, aaabbbbbaa, etc. Note that ɛ € L for completeness (0 number of a's is equal to 0 number of b's, which are also consecutive). Show that this language is context-free by giving a context-free grammar.

Q: Java Programming Code only Space X is planning to start Star link. Programmers at SpaceX are having…

A: Required: Write a code in the given programming language which meets all the conditions given and…

Q: If P is a true proposition and Q is a false proposition, then ( P+ ~Q)A P is a true proposition.

A: Background for biconditional logic.

Q: L = {we {0, 1}* | w contains the same number of occurrences of the substrings 01 and 10} For…

A: Answer: To prove that the language L is regular, we can construct a finite automaton that recognizes…

Q: Set Let S = {1, 4} and T = {a, b, c}, computer: S X  T = S X S  = |T| = T − S = P(S) =

A:

Q: L1={U€E•[u ends with aa}. 12 = {u €I•|u ends and begins with different letters }. L3 = {u €E•|U…

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

Q: Given a string str and one of its character ch, the coverage of ch is computed as the number of…

A: Below I have provided C Programming. Also, I have attached the screenshot of the code and output of…

Q: Give a regular expression for the language of all strings over alphabet {0,1} that have exactly…

A: Given: A regular expression for the language of all strings over alphabet {0,1} that have exactly…

Q: Closure under prefix operator. Prefix operator is defined as: prefix(w E E*) = {w1 .. wk| 0< k <…

A: Closure Under Prefix Operator. Prefix Operator Is Defined As: Prefix(W E **) = {W1 ... Wkl 03 K &lt;…

Q: Implement your own hashtable from scratch, you are not allowed to use existing hash table libraries.…

A: Include necessary header files. Initialize size for hash table. Define function for hash table.…

Q: matching should cover the entire input string (not partial). The function prototype should be: bool…

A: The task is to implement a function is_match that checks if a given input string str_a matches a…

Q: define a function f(x, v) that takes in two inputs, x and v, and returns…

A: Sample Response def f(c,v):    if v==0:        return (-x**3+5*x**2-8*x+4)    else :        return…

Q: S is a set of strings over the alphabet {a, b}* recursively defined as: Base case: λ ∈ S, a ∈ S, b…

A: Base case: λ ∈ S, a ∈ S, b ∈ S Recursive rules: If x ∈ S, then Rule 1: axb ∈ S Rule 2: bxa ∈ S

Q: The function first_three takes one string parameter, word, and returns a slice of length three from…

A: Use : operator to fetch the substring and if-else to find the length of parameter

Q: Java Programming Code only Space X is planning to start Star link. Programmers at SpaceX are having…

A: Required: Write a code in the given programming language which meets all the conditions given and…

Q: Finally, we will do some simple analysis - ranking of words. Write a function word_ranking(corpus,…

A: Python Program: def word_ranking(corpus,n,sort_indes): words = [] for s in corpus: words +=…

Q: art I: Define a “word” as a maximal length sequence of alphanumerics. For example, in the line…

A: #include &lt;stdio.h&gt;#include &lt;stdlib.h&gt;#include &lt;string.h&gt;#include…

Q: The String class implements Comparable, which means that two strings can be compared to each other.…

A: Write a Comparator that compares two strings alphabetically so that “aardvark” is ordered before…

Q: Describe the language L over the alphabet. i.e. {y,t,z,tt,tz...}: 1. ʎ U (t + z) U (t + z)2 2.…

A: Given the alphabet ∑={a, t, z}

Q: Write a function below that will take a 2d array of booleans representing a map as a parameter which…

A:

Q: ode in Prolog. Do not use in built libraries. Implement the following relation to get a vector…

A: Input : Two vectors. Output : Element wise product of two vectors.

Q: Create a function that takes the dimensions of two triangles (like the same members) and checks if…

A: Step 1 : Start Step 2 : Define a function doTriangleFit() to check if the first triangle fits in the…

Q: Find a longest common subsequence between following strings: String1= {1, 2, 3, 4, 5, 6, 7, 8}…

A: The Longest Common _Subsequence (LCS) problem is finding the longest _subsequence present in given…

Q: Let X = {strings in A} Name two B, C C X and two D, E C X such that... a) BUC = X B = C = b) DnE + Ø…

A: A = {the quick brown fox jumped over the lazy dog} Then, X = {the, quick, brown, fox, jumped, over,…

Q: Python Lee has discovered what he thinks is a clever recursive strategy for printing the elements…

A: def printAll(seq): print ('printAll(%s)' % seq) #for tracing arguments if seq: print(seq[0])…

Q: Count all the letters in a sentence. Both A and a should count for the same letter. The best way to…

A: According to the Question below the Complete Program:   Program Output:

Q: Given a set of buildings, the skyline is the silhouetted shape formed by the highest boundaries of…

A: Here, n rectangular buildings in a 2-dimensional city are given that computes the skyline of these…

Q: Bonus assignment: How to test/find out if two regular expressions are equal with the help of the…

A: A regular expression is a succession of characters that determines a hunt design in text. Normally…

Q: uppose three algorithms A, B, and C, can be implemented to perform a task. The ilgorithms have the…

A: Answer:-         C &lt; A &lt; B   explanation:- first, we will know, what is Time Complexity?…

Q: Example 3.15 Given a list of symbols a1, a2, …, am, a string of these symbols is: B1. the empty…

A: The original definition of a string of symbols allows for any combination of symbols from the given…

Q: Given: Language L1 = {aa, b, bc} Determine: 3th Power of L1 = L1^3 Hint: The Power of L is the set…

A: Solution:

Q: A = {r| x = 3d + 2, d e N}, B = {x e Z|a? + 9 = 0}, C = {1,5}. Also assume the Universal set is N:…

A:

Q: LetC(x)be the statement "xhas a cat",D(x)"xhas a dog", andH(x)"xhas a horse". LetUbe the set of all…

A: We need to express each of the given statements in terms ofC(x),D(x),H(x), quantifiers, and logical…

Q: Input: A set of n movies. A positive integer k. A positive integer q. A function f that takes two…

A: Write an algorithm for  a set  оf  n  mоvies.  А  роsitive  integer  k.  А  роsitive  integer  q.…

Q: Write up what the properties of sets, lists, vectors and strings are and whether they are mutable or…

A: Write up what the properties of sets, lists, vectors and strings are and whether they aremutable or…

Q: In each case, you should provide two strings in L and two strings not in L in the spaces provided.…

A: I Have answered this question in step 2.

Q: P(x): "x is a kind-hearted person". Q(x): "x is an honest person".

A: ∃ (there exists ) menas atleast ~q  Not a honest person ~p not a kind hearted person So there exists…

Q: Let À ={a, b, c} and B ={a, b} a. Is A a subset of B? b. Is Ba subset of A? c. What is A U B? d.…

A: Here first of all need to find the subset. We can see that the set B contains 2 elements that are…

Q: Alert dont submit AI generated answer.

A: The objective of the question is to build a Trigram Language model using a corpus from the story…

Q: hyphen denotes set difference and ɛ de- notes the empty string. (Hint: L consists of the strings…

A:

Q: solve in C please. Implement the following two functions that get a string, and compute an array of…

A: #include "headers.h" #include "processmanager.h" #include "history.h"   int count_tokens(char *,…

Q: In Haskell Language write matchEmpty, which determines whether the language for a regular --…

A: The provided Haskell code implements a solution to the problem of determining whether the language…

Time Complexity

In computer science, the computational complexity that is measured in terms of time is referred to as time complexity that defines how long it takes a computer to execute an algorithm. An algorithm's time complexity is measured by the the amount of time required to execute each statement of code in the algorithm. If a statement is set to execute repetitively, the number of times it will be N multiplied by the time it takes to run that function each time is equal .