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regular set? Also write R.E for the following and explain,

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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The goal is to rewrite the function, below, such that passes in a different list of parameters, particularly eliminating the need to pass low and high for each recursive call to binary_search. defbinary_search(nums,low,high,item): mid=(low+high)//2iflow>high:returnFalse #The item doesn't exist in the list!elifnums[mid]==item:returnTrue# The item exists in the list!elifitem<nums[mid]:returnbinary_search(nums,low,mid-1,item)else:returnbinary_search(nums,mid+1,high,item) The new function should be prototyped below. The number of changes between the given version, and the one requested is not significant. defbinary_search(nums,item):pass# Remove this and fill in with your code Tip: If you consider that high and low are used to create a smaller version of our problem to be processed recursively, the version requested will do the same thing, just through a different, more Pythonic technique.
Rewrite the below function, viral-growth in Racket, so that it can be passed to the below repeated function and so that the count variable of repeated (rather than a minsvariable in viral-growth) determines how many minutes of viral growth pass. Rewrite viral-growth to accept only one argument, the number of people who start the spread, and to return a lambda that accepts a list argument. (define (viral-growth ppl) (lambda (ls) [ YOUR CODE GOES HERE] (define (repeated f count) (lambda (x) (if (= count 0) x (f ((repeated f (- count 1)) x))))
I have a dictionary that comprises of numerous volumes, each of which is a book, on my bookcase of paper books. A-E is covered by one, F-J by another, K-M by another, and so on. I look at the alphabetic ranges to get the proper loudness to discover a word. Then I turn to the appropriate page by using the ranges at the top of each page. After that, I look for the word on the page.
Sets are collections (1) without defined order and (2) not allowing duplication. Multisets, also called “bags” are collections without defined order but which permit duplication, i.e., more than one element. We define the function #(a B) to be the number of occurrences of the element a in the bag B. For example, #(1, [1 1 2 3 4 4 5]) is 2 and #(5, [1 1 2 3 4 4 5]) = 1. Bag union and intersection are defined in terms of #. bag-union: List × List -> ListThis function should take as arguments two lists representing bags and should return the list representing their bag-union. bag-intersection : List × List -> ListThis function should take as arguments two lists representing bags and should return the list representing their bag-intersection. Allowed functions. Your code must use only the following functions:1. define, let2. lambda3. cons, car, cdr, list, list?, append, empty?, length, equal?4. and, or, not5. if, cond6. +, -, /, * Racket code only please. Thank you!
USE OCAML AND NO OTHER LANGUAGE
I want code in RUBY only Space X is planning to start Star link. Programmers at SpaceX are having trouble to implement wildcard pattern matching supporting only the wildcard '?'. The wildcard character '?' can be substituted by any single lower case English letter for matching. He has two strings X and Y of equal length, made up of lower case letters and the character '?'. He wants to know whether the strings X and Y can be matched or not. The first line of input contain an integer T denoting the number of test cases. Each test case consists of two lines, the first line contains the string X and the second contains the string Y. For each test case, output a single line with the word Elon if the strings can be matched, otherwise output Musk. Input: Output: 2 Elon s?or? Musk sco?? stor? sco??
Add the following list to your definitions: (define my-list (list 3 6 12 24 48)) Finally, use Racket’s built-in fold function, a lambda of your own creation, a base, and the above my-list to produce the exact same output as your circles function. In this image of code and output, the question marks and “.…” indicate what you should figure out:
Remains code. Implement regular expression matching with support for '.' and '*'. '.' Matches any single character.'*' Matches zero or more of the preceding element. The matching should cover the entire input string (not partial). The function prototype should be:bool is_match(const char *s, const char *p) Some examples:is_match("aa","a") → falseis_match("aa","aa") → trueis_match("aaa","aa") → falseis_match("aa", "a*") → trueis_match("aa", ".*") → trueis_match("ab", ".*") → trueis_match("aab", "c*a*b") → true""" def is_match(str_a, str_b): """Finds if `str_a` matches `str_b` Keyword arguments: str_a -- string str_b -- string """ len_a, len_b = len(str_a) + 1, len(str_b) + 1 matches = [[False] * len_b for _ in range(len_a)] # Match empty string with empty pattern matches[0][0] = True # Match empty string with .* for i, element in enumerate(str_b[1:], 2): matches[0][i] = matches[0][i - 2] and element == '*' for i, char_a in…
Let A = {47, 49, 51, 53}, which of these is a correct set builder notation for A? There may be more than one correct answer. A. {2x +1 : r e Z and 23 < a < 26} O B. {x : a is odd and 47 < a < 53} C. {r : x is odd and 47 < a< 53} D. {r : a is odd and 46 < a < 54} E. {2x +1:r € Z and 23
Perl Program: It is given to the same members containing n whole numbers. You have to switch to multiple K elements of this list, so that the outgoing list becomes a continuation of arithmetic. From all the arithmetic continuity, you have to choose the best one. You can differently describe the arithmetic continuity with the two numbers a0 and d - the first element of a given continuity and a step that describes the next aspect. (ai = a0 + į* d). Continuation A (a0, do) is much better than continuation B (b0, d1) if (a0
Can someone help me with this question in C++ and not any other programming language No library functions that leverage hash and maps can be used except to make it all lowercase List sentence(s) with the maximum no. of occurrences of the word "the" in the entire file and also list the corresponding frequency. List sentence(s) with the maximum no. of occurrences of the word "of" in the entire file and also list the corresponding frequency. List sentence(s) with the maximum no. of occurrences of the word "was" in the entire file and also list the corresponding frequency. here is a link too the file its called tiny1 https://drive.google.com/file/d/1ariNN_rW9c3vijK1hvjObcQJafYQ2gzm/view?usp=sharing
Computer Science Assume that you would like to represent some information about yourself as follows: (self my-height 170 my-weight 70 my-interest 'volleyball) Use the ASSOC primitive to represent the same information by sub-lists, where your name is the key.