Estimated Completion Time: 2-3 minutes Which of the following situations will lead to an object being aliased? Select all that apply. O Assigning a string to S1, then using S1 in a function call with header "def foo(x: str) -> None" O Assigning a list to L1, then assigning the result of slicing L1 (i.e., L1:) to L2 O Assigning a list to L1, then assigning the result of a copy) method on L1 to L2 O Assigning a list to L1, then assigning L1 to L2 O Assigning a string to S1, then assigning the result of slicing $1 (ie. S1[;) to $2 O Assigning a string to S1, then assigning the result of a replacel) method on S1 to S2 O Assigning a list to L1, then using L1 in a function call with header "def foo(x: List) -> List" Assigning two lists to L1 and L2, then assigning the result of adding them to L3

Estimated Completion Time: 2-3 minutes Which of the following situations will lead to an object being aliased? Select all that apply. O Assigning a string to S1, then using S1 in a function call with header "def foo(x: str) -> None" O Assigning a list to L1, then assigning the result of slicing L1 (i.e., L1:) to L2 O Assigning a list to L1, then assigning the result of a copy) method on L1 to L2 O Assigning a list to L1, then assigning L1 to L2 O Assigning a string to S1, then assigning the result of slicing $1 (ie. S1[;) to $2 O Assigning a string to S1, then assigning the result of a replacel) method on S1 to S2 O Assigning a list to L1, then using L1 in a function call with header "def foo(x: List) -> List" Assigning two lists to L1 and L2, then assigning the result of adding them to L3

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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program - python Question: Create a class called Candy which keeps track of the three pieces of information Read in the file line by line and create a Candy class instance for each candy bar you have, and add that new instance to a list. Once you have the list created, loop through the list and print the candy bar info out to the consoleUse this as an example: class Coord: def __init__(self, x, y): self.x = x self.y = y def main(): # creating list list = [] with open('C:\\Users\\owner\\Documents\\mycoords.txt') as f: for line in f: # print(line.strip()) words = line.split(',') x=float(words[0]) y=float(words[1]) list.append(Coord(x,y)) f.close() # Accessing object value using a for loop for p in list: print(f"Coordinate: x={p.x}, y={p.y}") print("") main()
Create a module called chemistry that contains the following three functions: elementName(symbol) This function accepts one string parameter. The symbol represents the name of a specific element on the periodic table. The function returns the name of the element (as string) of the specific element. For example, elementName(Na) returns Sodium. elementName(Li) return Lithium. Note: You are NOT allowed to use lists or any data types not yet covered in class. ionicCompound(e1, c1, e2, c2) This function accepts the chemical symbol and charge for two elements. The function should return the ionic compound created with these two elements. The subscripts should be reduced. ionicName(e1, e2) This function accepts the chemical symbols for two elements. Based on these two symbols the function should return an appropriate chemical name. ionicName(Mg, O) returns Magnesium Oxide. Create a Python program that uses the functions defined in your chemistry module to allow a user to create chemical…
c++ A FastCritter moves twice as fast as a regular critter. When asked to move by n steps, it actually moves by 2 * n steps. Implement a FastCritter class derived from Critter whose move function behaves as described. Complete the following file: fastcritter_Tester.cpp #include <iostream>using namespace std; #include "critter.h" /**A FastCritter moves twice as fast as a regular critter.*/class . . .{public:void move(int steps);}; . . . int main(){FastCritter speedy;speedy.move(10);cout << speedy.get_history() << endl;cout << "Expected: [move to 20]" << endl;speedy.move(-1);cout << speedy.get_history() << endl;cout << "Expected: [move to 20, move to 18]" << endl;return 0;} Use the following file: critter.h #ifndef CRITTER_H #define CRITTER_H #include <string> #include <vector> using namespace std; /** A simulated critter. */ class Critter { public: /** Constructs a critter at position 0 with blank history. */ Critter();…
Regex, APIs, BeautifulSoup: python import requests, refrom pprint import pprintfrom bs4 import BeautifulSoup complete the missing bodies of the functions below: def mathmatic(target):"""Question 1You are doing fun math problems. Given a string of combination of '{}', '[]','()', you are required to return the substring included by the outermost '{}'.You need to write your code in one line.Args:target (str): the string to search inReturns:str>>> mathmatic('{[[[[]()]]]}')'[[[[]()]]]'>>> mathmatic('[(){([{}])}]')'([{}])'"""pass test code: # print(mathmatic('{[[[[]()]]]}'))# print(mathmatic('[(){([{}])}]'))
Links Bing Remaining Time: 1 hour, 24 minutes, 17 seconds. * Question Completion Status: Р QUESTION 8 bbhosted.cuny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_2271631_1&course_id=_2 Implement the following: 1) Define a function evenList() with an arbitrary parameter a. P 2) This function accepts any number of integer arguments. 3) evenList() stores all even numbers into a list and returns the list. 4) Call the function with 5, 6, 7, 8, 9, 10 as arguments. 5) Print the result of the function call. Make sure to precisely match the output format below. Write your code in the ANSWER area provided below (must include comments if using code is not covered in the course). Example Output [6, 8, 10] For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial QUESTION 9 Programs s 10pt Click Save and Submit to save and submit. Click Save All Answers to save all answers. く Ev Av
IN C++ Write code that: creates 3 integer values - one can be set to 0, the other two should NOT multiples of one another (for example 3 and 6, or 2 and 8) take you largest value and perform a modulus operation using the smaller (non zero) value as the divisor print out the result. create an alias for the string type call the alias "name" then create an instance of the "name" class and assign it a value using an appropriate cout statement - print out the value Please screenshot your input and output, as the format tends to get messed up. Thank you!
Q1: Assignment Difficulty Dan has a list of problems suitable for Assignment 4. The difficulties of these problems are stored in a list of integers a. The i-th problem’s difficulty is represented by a[i] (the higher the integer, the more difficult the problem). Dan is too busy eating saltines to worry about Assignment 4 decisions, so he asks Michael the TA to select at least two problems from the list for the assignment. Since there are many possible subsets of the problems to consider and Michael has a life, he decides to consider only sublists (definition follows) of the list of problems. To make grading the assignment easier, Michael wants to pick problems that don’t vary too much in difficulty. What is the smallest difference between the difficulties of the most difficult selected problem and the least difficult selected problem he can achieve by selecting a sublist of length at least 2 of the original list of problems? Definition: A sublist of a list a is any list you can obtain…
c++ A FastCritter moves twice as fast as a regular critter. When asked to move by n steps, it actually moves by 2 * n steps. Implement a FastCritter class derived from Critter whose move function behaves as described. Complete the following file: fastcritter_Tester.cpp #include <iostream>using namespace std; #include "critter.h" /**A FastCritter moves twice as fast as a regular critter.*/class FastCritter:public Critter{public:void move(int steps);}; . . . int main(){FastCritter speedy;speedy.move(10);cout << speedy.get_history() << endl;cout << "Expected: [move to 20]" << endl;speedy.move(-1);cout << speedy.get_history() << endl;cout << "Expected: [move to 20, move to 18]" << endl;return 0;} Use the following file: critter.h #ifndef CRITTER_H #define CRITTER_H #include <string> #include <vector> using namespace std; /** A simulated critter. */ class Critter { public: /** Constructs a critter at position 0 with blank…
Higher-order function foldr: (X Y --> Y) Y ListOfX --> Y Which of the below is true? (select two) A) X and Y must be of different types B) X and Y must be of the same type C) The return type of foldr is a function that takes two arguments D) foldr takes a function as an input argument E) Y can't be a list F) The base case of the implicit recursion is of type Y
Using C++, create statements that do the following: Define an enum type, birdType, with the values PEACOCK, SPARROW, CANARY, PARROT, PENGUIN, OSTRICH, EAGLE, CARDINAL, and HUMMINGBIRD. Declare a variable bird of the type birdType. Assign CANARY to the variable bird. Advance bird to the next value in the list. Decrement bird to the previous value in the list. Output the value of the variable bird. Input value in the variable bird.
] ] get_nhbr In the cell below, you are to write a function called "get_nhbr(Ist, graph)" that takes in two inputs: a list of vertices and a graph. The function is to return a list that contains the neighborhood of the vertices in 'Ist' (remember that this means you are finding the union of the individual vertices' neighborhoods). + Code + Markdown After compiling the above cell, you should be able to compile the following cell and obtain the desired outputs. print (get_nhbr(["A", "D"], {"A" : ["B"], "B" : ["A", "D", "E"], "C" : ["E"], "D":["B"], "E":["B","C","F"], "F":["E"]}), get_nhbr(["B", "C", "F"], {"A" : ["B"], "B" : ["A", "D", "E"], "C" : ["E"], "D":["B"], "E":["B","C","F"], "F":["E"]})) This should return ["B"] ["A", "D", "E"] Python Python
//main.cpp #include<iostream>#include<cmath>#include<string>#include<cstring>#include<algorithm>#include<list>using namespace std; #include "Dog.h" void popDogs(list<Dog>&); /** Change NOTHING above this line **/ //TODO, overload << operator//here's a startostream& operator<<(ostream& os, Dog& d){ //Insert code here so that when a Dog is output, it is done as: //dogName weighs weight pounds. //Like: //Spot weighs 28 pounds. //Don't forget the period at the end. Do NOT include an endl at the end of the line. os<< d.dogName<< " weighs " << d.weight << " pounds."; return os; } int main(){ //TODO, instantiate list of Dog variable called kennel. list<Dog> kennel; //TODO, call the popDogs function passing the kennel variable declared above popDogs(kennel); //This code will sort the list of Dog using the less-than operator kennel.sort();…