Select all answers that apply. In which of the following scenarios is using a vector less efficient than using a list? O A program that frequently needs to access elements throughout the the container O A program that needs to add a large number of elements to the beginning of the container O A program that adds a fixed number of elements and then repeatedly removes the first element O A program that frequently adds elements, but only to the end of the container

Select all answers that apply. In which of the following scenarios is using a vector less efficient than using a list? O A program that frequently needs to access elements throughout the the container O A program that needs to add a large number of elements to the beginning of the container O A program that adds a fixed number of elements and then repeatedly removes the first element O A program that frequently adds elements, but only to the end of the container

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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import random; #importing random module aGrades=[]; #list to store grades of all tests for i in range(0,7):aGrades.append(random.randrange(0,100)); #generating 7 random values for testsexamCount=len(aGrades)-1; #examCount is a variable to store count of all exams except last exam totalPoints=sum(aGrades)-aGrades[len(aGrades)-1]; #totalPoints is a variable to store sum of all scores excluding last exam testAverage=(totalPoints)/examCount; #testAverage is a variable used to store the average of scores except last exam finalAverage= (testAverage*0.6)+(aGrades[len(aGrades)-1]*0.4); #finalAverage is a variable to store weighted average of the tests print(aGrades); #printing list of gradesprint(testAverage); #printing test averageprint(finalAverage); #printing final average How do i rewrite the Grades List programs above using a loop instead of referencing the elements of the lists by index.
Question 44 Computer Science A list of elements has a size of 100. Choose the operations where an ArrayList would be faster than a LinkedList. (Select all that apply) Question 5 options: removing from index 99 inserting at index 1 removing from index 4 inserting at index 4 Full explain this question and text typing work only
python:numpy def shoe_shopping(shoe_arr):'''QUESTION 4You're shopping on a budget and want to determine the cheapest shoe brandgiven an array of brands and prices. Return the brand with the lowestaverage price.Hint: You should create a new array of the prices with the correct dtype.Args:shoe_list(np.arry)Return: string>>> shoe_list1 = np.array([["Nike", "Adidas", "New Balance"],["110.99", "135.99", "94.99"],["85.99", "150.99", "105.99"],["225.99", "145.99", "130.99"]])>>> shoe_shopping(shoe_list1)'New Balance'''' # shoe_arr1 = np.array([["Nike", "Adidas", "New Balance"],# ["110.99", "135.99", "94.99"],# ["85.99", "150.99", "105.99"],# ["225.99", "145.99", "130.99"]])# print(shoe_shopping(shoe_arr1))# shoe_arr2 = np.array([["Converse", "Vans", "Dr. Martens", "Steve Madden"],# ["82.99", "250.99", "180.99", "109.99"],# ["99.99", "150.99", "115.99", "75.99"],# ["125.99", "115.99", "110.99", "99.99"]])# print(shoe_shopping(shoe_arr2))
Write a for loop to print all NUM_VALS elements of vector courseGrades, following each with a space (including the last). Print forwards, then backwards. End with newline. Ex: If courseGrades = {7, 9, 11, 10}, print:7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = courseGrades.size() - 1 (Notes)C++ without using std:: Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element vector (vector<int> courseGrades(4)). See "How to Use zyBooks".Also note: If the submitted code has errors, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. #include <iostream>#include <vector>using namespace std; int main() { const int NUM_VALS = 4; vector<int> courseGrades(NUM_VALS); int i; for (i = 0; i < courseGrades.size(); ++i) { cin >>…
Implement a function void printAll(void) to print all the items of the list.
Java code 8. Given an existing ArrayList named friendList, find the first index of a friend named Sasha and store it in a new variable named index. 9. Given that an ArrayList of Integers named numberList has already been created and several values have already been inserted, write the statement necessary to insert the value 25 at the end of the list. 10. Declare an integer array named evens and fill it with even numbers from 2 through 10 in one statement. 11. Given an existing array named pets, find the size of the array and store it in a new variable named numPets. 12. Given an existing ArrayList named contactList, find the number of contacts in the ArrayList and store it in the existing variable named numContacts.
P__Given an empty ArrayList<Integer> numList, what are numList's contents after the following operations: numList.add(12);numList.add(14);numList.add(16);numList.set(1, 13);numList.add(0, 10);.
Create an object-oriented program that uses a custom list object to automatically generate and work with a series of random integers. Console Random Integer List How many random integers should the list contain?: 12 Random Integers ======== ======= Integers: 17, 34, 34, 15, 71, 44, 97, 48, 19, 12, 83, 42 Count: 12 Total: 516 Average: 43.0 Continue? (y/n): y Random Integers =============== Integers: 52, 88, 10, 77, 56, 91, 17, 51, 22, 14, 48, 37 Count: 12 Total: 563 Average: 46.917 Continue? (y/n): n Bye! Specifications Create a Random IntList class that inherits the list class. This class should allow a programmer to create a list of random integers from 1 100 by writing a single line of code. For example, a programmer should be able to create a custom list that stores 12 random integers with this line of code: ● ● int_list = RandomIntList (12) To do that, you can use the self keyword to access the list superclass like this: self.append (rand_int) The RandomIntList class should contain…
Java - Elements in a Range
Q2 You have a dynamic array with 3 elements in it and a capacity of 4. The capacity doubles when additional space is needed and shrinks by 50% (rounding down) when the size is at or below 1/3 capacity. Answer the questions below for the following operation sequence: Add, Add, Remove, Remove, Remove Q2.1 What will be the capacity of the list when the whole sequence is completed? Answer= Enter your answer here
6. the grade is under 20 which is outlier, remove it from the array list. 7. Print array list using System.out.println() 8. Use indexOf to print index of 80. 9. Use get function. 10. What is the difference between get and index of? 11. Print the values of the array list using Iterator class. 12.. Delete all the values of the array list using clear function. 13. Print all the values of the array after you execute clear using System.out.println(). what is the result of using clear function? 14. What is the shortcoming of using array List?
Having trouble with creating the InsertAtEnd function in the ItemNode.h file below. " // TODO: Define InsertAtEnd() function that inserts a node // to the end of the linked list" Given main(), define an InsertAtEnd() member function in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts ------------------------------------------------------- main.cpp -------------------------------------------------------- #include "ItemNode.h" int main() { ItemNode *headNode; // Create intNode objects ItemNode *currNode; ItemNode *lastNode; string item; int i; int input; // Front of nodes list headNode = new ItemNode(); lastNode = headNode; cin >> input; for (i = 0; i < input; i++) { cin >> item;…