Given the following situation, which of the listed data structures is best suited to represent the data involved? Jenny, Jordan, and Josh open up JJJ's Bakery. When taking an order, they take a customer's name as well as how many doughnuts they want. Assume that everyone has a unique name. vector orders; vector orders; O map orders; O map orders; O string orders[];

Given the following situation, which of the listed data structures is best suited to represent the data involved? Jenny, Jordan, and Josh open up JJJ's Bakery. When taking an order, they take a customer's name as well as how many doughnuts they want. Assume that everyone has a unique name. vector orders; vector orders; O map orders; O map orders; O string orders[];

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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Consider the following code snippet: vector num (3) ; num [0] = 1; num [1] = 2; num [2] = 3; num.pop_back(); Which element or elements of the vector are removed by the pop_back() function in the given code snippet? The element with index 0 The element with index 1 The element with index 2 All the elements
Tour.java Create a Tour data type that represents the sequence of points visited in a TSP tour. Represent the tour as a circular linked list of nodes, one for each point in the tour. Each Node contains two references: one to the associated Point and the other to the next Node in the tour. Each constructor must take constant time. All instance methods must take time linear (or better) in the number of points currently in the tour. To represent a node, within Tour.java, define a nested class Node: private class Node { private Point p; private Node next; } Your Tour data type must implement the following API. You must not add public methods to the API; however, you may add private instance variables or methods (which are only accessible in the class in which they are declared). public class Tour // Creates an empty tour. public Tour() // Creates the 4-point tour a→b→c→d→a (for debugging). public Tour(Point a, Point b, Point c, Point d) // Returns the number of points in this tour. public…
A script stores information on potential subjects for an experiment in a vector of structures called subjects. The following shows an example of what the contents might be: >> subjects(1) ans = name: 'Joey' sub_id: 111 height: 6.7000 weight: 222.2000 For this particular experiment, the only subjects who are eligible are those whose height or weight is lower than the average height or weight of all subjects. The script will print the names of those who are eligible. Create a vector with sample data in a script, and then write the code to accomplish this. Don’t assume that the length of the vector is known; the code should be general. (this question with matlab programming language )
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A script stores information on potential subjects for an experiment in a vector of structures called subjects. The following shows an example of what the contents might be: >> subjects(1) ans = name: 'Joey' sub_id: 111 height: 6.7000 weight: 222.2000 For this particular experiment, the only subjects who are eligible are those whose height or weight is lower than the average height or weight of all subjects. The script will print the names of those who are eligible. Create a vector with sample data in a script, and then write the code to accomplish this. Don’t assume that the length of the vector is known; the code should be general.
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