For E = {a, b}, construct dfa's that accept the sets consists of(i) All strings with no more than three a's(ii) All strings w, where |wmod 3 = 0.

Answered: For E= {a, b}, construct dfa's that…

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

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Define function p:cat represents set concatenation ◦, which concatenates every pair of strings from both sets using racket. We can specify set concatenation as p1 ◦ p2 = {u · v | u ∈ p1 ∧ v ∈ p2}. Alternatively, we give an inductive specification: ∅ ◦ p2 = ∅ p1 ◦ p2 = prefix(u, p2) ∪ (p'1◦ p2) if p1={u} ∪ p'1.
Let U-(1,2,3,4,5,6,7,8,9], B=[2,3,4,5,6,7,8] (U is an universal set). Find B. Write your answer using set notation, i.e. list all elements separated by comma inside braces[) or use the symbol of empty set, if needed Ø. Do not insert any spaces.
Suppose we have a tree type and a variable t defined as follows: datatype tree = Node of tree * int * tree| Leafval t = Node(Node(Leaf, 1, Leaf), 2, Node(Leaf, 3, Leaf))Note that t is a tree of the following form:Node 2/ \Node 1 Node 3/ \ / \L L L L Write a function maxTree that finds the maximum values within a tree.For example, maxTree t returns 3. Note that this is NOT a searchtree. This function assumes that the input tree is not a Leaf. IN SML SHOW OUTPUT WORKING
Create your own vector class which will test algorithms from the STL Derive class myVector from vector. myVector must implement the following methods: int seqSearch(T searchItem); int binarySearch(T searchItem); void bubbleSort(); void insertionSort(); Create a test program to create some vectors and test your methods above. Recall from your reading that binary search only works on a sorted list. Add a static member to the class to “remember” if the list is sorted ( i.e. binarySearch() should first sort the vector if it’s not sorted already). Use the template below as a starter for your assignment. All comments in bold represent code which you need to implement. #include <iostream> #include <string> #include <vector> using namespace std; template <class T> class myVector: public vector<T> { public: int seqSearch(T searchItem); int binarySearch(T searchItem); void bubbleSort(); void insertionSort(); }; template <class T>…
my code isnt working for these twow questions? Is it incorrect
The ADT Set can store a collection of elements in any order but without duplications. For example: {1,2,3} is a set with three elements, but {1,2,2,3} is not a set because 2 occurs twice. • Give the names of the essential methods for this ADT. • Give pseudo-code for an implementation of these methods.
Let A = {2,7,8}, B = {-1,2,6,7}, C = {2,4,6,8,10}, D = {{7},{2,4},{6},2 ,8}List each set starting with lowest cardinality to highest. List elements in ascending order. Note that any answer that should be a set MUST be entered using set notation with no spaces. What is the power set of A? _______________________ Answer is not {Ø,{2},{7},{8},{2,7},{7,8},{2,7,8}}
In AList class, we have the get function to return an item at a particular position in list indexed by i. For example, let L=[1,2,3]. A call to L.get (1) will return 2. Write in the answer an enhanced get function to accept negative indices. Specifically, the last item has index -1, the second last item has index -2, and the i-th last item has index -i. For example, let L=[1,2,31. A call to L.get (-1) will return 3. A call to L.get (-2) will return 2. A call to L.get (-3) will return 1. Below is a skeleton of the AList class: template class AList { private: /** The underlying array. */ ItemType *items; /** Stores the current size of the list. */ int count; /** Max number of items allowed. */ int maxCnt; public: // Other functions omitted... ItemType get (int i) { // Copy this function in the answer and write code below this line. } ;
a. Is 3 ∈ {1, 2, 3}? b. Is 1 ⊆ {1}? c. Is {2} ∈ {1, 2}?
F4
1.Consider the set A def = {{}, {{}}, {{{}}}}. If x∈ A, how many elements might x have?
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; M = {3, 5, 7, 9, 10}; N = {3, 4, 9, 10}; and O = {6, 7,8, 9, 10}. List the members of the indicated set, using set braces:(i) (N nO)'(ii) M u (N - O)(iii) MΔO(iv) M n N’nO

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For E= {a, b}, construct dfa's that accept the sets consists of (i) All strings with no more than three a's (i1) All strings w, where |wmod 3 = 0.