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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Choose all of the options that apply. In which of the following cases is it more efficient to use a vector rather than a list? O A program that frequently accesses elements throughout the container O A program that needs to add a large number of elements to the container's beginning O A program that adds a fixed number of elements and then removes the first element repeatedly O A program that frequently adds elements, but only to the container's end
Suppose, alist is a 2-dimensional list. Which of the following options gives you the last element of this list? Question options: a. alist[ len(alist) - 1, len(alist) - 1 ] b. alist[ len(alist), len(alist) ] c. alist[ len(alist) - 1]
Integer dataSize is read from input. Then, strings and integers are read and stored into string vector subjectList and integer vector pageList, respectively. Lastly, integer pageThreshold is read from input. Set matchCount with the number of element pairs with a page greater than or equal to pageThreshold. Output the subject of each pair found with a page greater than or equal to pageThreshold. End with a newline. Ex: If the input is: 3 Environment 416 Cooking 353 Science 306 349 Then the output is: Environment Cooking Total: 2 By using the following code: #include #include using namespace std; int main() { int numElements; int pageThreshold; int matchCount; unsigned int i; cin >> numElements; vector subjectList(numElements); vector pageList(numElements); for (i = 0; i < subjectList.size(); ++i) { cin >> subjectList.at(i); cin >> pageList.at(i); } cin >> pageThreshold; /* Your code goes here */ cout << "Total: " << matchCount;…
Write a Java application CountryList. In the main method, do the following:1. Create an array list of Strings called countries.2. Add "Canada", "India", "Mexico", "Peru" in that order.3. Use the enhanced for loop to print all countries in the array list, one per line.4. Add "Spain" at index 15. Replace the element at index 2 with "Vietnam". You must use the set method.6. Replace the next to the last element with "Brazil". You must use the set method. You willlose one point if you use 3 in the set method. Do this in a manner that would replace thenext to the last element, no matter the size of the array list.7. Remove the object "Canada" Do not remove at an index. Your code should work if"Canada" was at a different location. There is a version of remove method that willremove a specific object.8. Get and print the first element followed by "***"9. Call method toString() on countries to print all elements on one line.10. Use the enhanced for loop to print all countries in the array list,…
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3) in python Copy the Plain Text UTF-8 version of Bram Sroker’s Dracula from the site:http://www.gutenberg.org/ebooks/345 into a text document called ‘dracula.txt’. Write pythoncode that reads the text document and counts the unique words and stores the words and countsinto a dictionary. Write the words and counts into a text file called ‘dracula words.txt’ by usingthe Python file handle method seen in class. Generate a list called ‘sorted counts’ that containsthe value and key pairs as tuples that are sorted in descending order based on the frequencies ofthe words. For example, it should be in the form:[(7423, ‘the’),(5640, ‘and’),(4499, ‘I’),(4462, ‘to’),(3673, ‘of’),(2891, ‘a’),(2384, ‘in’),(ect.) Here, the word ‘the’ occurs the most frequently. Output the top 10 most frequently occurringwords. How often does the word ‘Dracula’ come up in the entire Novel?Hint: use list comprehension. For the dictionary ‘counts’ the command ‘counts.items()’ returns anobject of type dict items that…
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Writing a program that helps to enter patients information:● Write a class patientInfo which contains the following data and methods:• Data:PatientName (String).PatientID (int).• Methods:Getter and Setter for each data item.toString method.● Display this menu:1:Merging two Single Linked List structure type2:Merging two Stacks data structure type3:Merging two Queses data structure type4:Merging Single Linked List with Stack to Linked List5:Merging Single Linked List with Queue to Linked List6:Merging Singly Linked List with Stack only Patient’s name that start with S to Queue● Ask the user to choose the data structure type from a given list to be merged.If you choose any of the above options:1.You must request [the size of data structures and patient information] from the user.2. Print the data structure before the merge.3. Print data structure after the merge.
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C7 Write a program that will take an integer array(A) and an integer value(v)as input and do the following task - If the value is present in the list,delete all the elements present before the value- if The value is not present in the list, enqueue it after 1st even number.//Comment per condition Must and explained the enqueue and code part with screenshot.I will up vote your answer immediatly. Kindly provide correct answer.
Perform the following. 1) Conver the infix expression a/b-c+d*e-a*c into postfix expression and trace that postfix expression for given data a=6, b=3, c=1, d=2 , e=4 .2) A student is asked to develop an application as part of mini project which reverses the order of numbers, such that the number that is placed last in the list will be removed first. The list can hold any number of elements. Implement the following menu based C++program for the same.
What would be the content of the list from left to right of the following code //each node contains a string and a pointer to the next Nodeclass Node{ public String name; public Node next; public Node(String name) { this.name = name; } public Node() { name = null; }}//********************************************//A list of Nodesclass Students{ Node front; public Students() { front = new Node(); }// add nodes to the list public void add(String s ) { Node cur = front; while(cur.next!= null) { cur = cur.next; } Node n = new Node(s); cur.next = n; n.next= new Node(s); } }class Driver{ public static void main(String[] args) { Students list = new Students(); list.add("a"); list.add("b"); list.add("c");list.add("d"); list.add("e"); list.add("f"); }}