Exercise 11

def delete task (..., ...): I param: task_collection (list) holds all tasks; param: an integer ID indexes each task (stored as a dictionary) (str) - a string that is supposed to represent an integer ID that indexes the task in the list returns: 0 if the collection is empty. -1 - if the provided parameter is not a string or if it is not a string that contains a valid integer >=0 representing the task's position on the list. Otherwise, returns the item (dict) that was removed from the provided collection. 11 11 11

As we in general, try to solve the problem first; we start with a brute force, simple, algorithm: design it below # write your implementation here def maxProfitBrute(changes): it returns the indices of (i,j) indicating the day to buy and sell respectively to have the maximum profit in a list of prices per day in . Inputs: - changes: the list holding the changes in prices; the value whose index is k represents the change between day and day has at least a single change [two days] Output: - i: the index of the change before which we buy j: the index of the change after which we sell - maxProfit: the value of the maximum profit Example: changes = [1, 2] - that means the price started with ; day 1: it became - day 2: it became In that case: (i,j) = (0,1) as we should buy at the first day, and sell after the third day # return the values return (0,0,0) # Try vour alaorithm

please solution Python language using list 2. Create a program that would save employee information (Employee ID, Name, Job Title, and Salary). Then, print employee names with their salary and job title. Also, get the average salary for all employees.

Topic: Database On my bookshelf of paper books, I have a dictionary that consists of multiple volumes, each of which is a book.  One covers A-E, another F-J, another K-M, and so on. To find a word, I look at the alphabetic ranges to find the right volume. Then I use the ranges at the top of each page to turn to the proper page.  Then I find the word  on the page.  Pick the correct answer.                             A. Multi-level Indexes                             B. Secondary indexes                             C. None the above

By python

Implement a function grandparents (person, family) with the following specification. Input: A string containing a person's name, person, and a family tree database family as specified above. Output: A list containing only the names of the grandparents of person that are stored in the database, or an empty list if no such information exists in the database (including if the person themselves are not in the database). For example, grandparents should behave as follows: >>> duck_tree = [['Donald Duck','Quackmore Duck', 'Hortense McDuck'], ['Della Duck', 'Quackmore Duck', 'Hortense McDuck'], ['Hortense McDuck', 'Fergus McDuck', 'Downy ODrake'], ['Scrooge McDuck', 'Fergus McDuck', 'Downy ODrake'], ['Fergus McDuck', 'Dingus McDuck', 'Molly Mallard'], ['Huey Duck', None, 'Della Duck'], ['Dewey Duck', None, 'Della Duck'], ['Louie Duck', None, 'Della Duck']] >>> sorted (grandparents ('Scrooge McDuck', duck_tree)) ['Dingus McDuck', 'Molly Mallard'] >>> sorted (grandparents ('Louie Duck',…

A task in this lab is a dictionary object that is guaranteed to have key-value pairs that follow certain constraints: Every task must have a "name" key, with the value being a string of the task's name Every task must have a "description" field, with the value being a string of the task's description Every task must have a "priority" field, with the value being a number 1-5, representing the task's priority 1 stands for "Lowest" (priority) 2 stands for "Low" (priority) 3 stands for "Medium" (priority) 4 stands for "High" (priority) 5 stands for "Highest" (priority) Every task must have a "deadline" field, with the value being a task's deadline represented as a valid date-string in slashed-format (ex. "02/05/2022") Note: we are using the US format for strings: <MM>/<DD>/<YEAR>. 01/02/2022 represents January 2nd, 2022. Every task must have a "completed" field, with the value being a Boolean value representing whether a task is completed or not Here is an…

Python

the concept of iterators and how they are better than using a regular loop to process the items in a collection.

Do this using C++ language using structures and singly linked list.

FIX THE PROGRAM BELOW.     #Function to get the key value ind dictionary def get_key(val):     for key, value in result.items():          if val == value:              return key       return "key doesn't exist"   #Function definition to find the tallest height def tall(list_height):          return max(list_height)   #Function to find the shortest height def short(list_height):          return min(list_height)     # creating an empty list list_names list_names = []    # Get the number of baby names as input from user num1 = int(input("Enter number of baby names : "))    # iterating till the range for i in range(0, num1):     name = input()     list_names.append(name) # adding the element        print("list of baby names : ",list_names)   # creating an empty list list_height list_height = []    # iterating till the range for i in range(0, num1):     height = int(input())     list_height.append(height) # adding the element        print("list of baby heights : ", list_height)   # using…

JavaScript Practice Question

A data structure called a deque is closely related to a queue. Deque is an acronym meaning "double-ended queue." With a deque, you may insert, remove, or view from either end of the queue, which distinguishes it from the other two. Utilise arrays to implement a deque

hi I really need help with this assignment problem flip_matrix(mat:list)->list You will be given a single parameter a 2D list (A list with lists within it) this will look like a 2D matrix when printed out, see examples below. Your job is to flip the matrix on its horizontal axis. In other words, flip the matrix horizontally so that the bottom is at top and the top is at the bottom. Return the flipped matrix. To print the matrix to the console:  print('\n'.join([''.join(['{:4}'.format(item) for item in row]) for row in mat])) Example: Matrix:W R I T XH D R L GL K F M VG I S T CW N M N FExpected:W N M N FG I S T CL K F M VH D R L GW R I T X Matrix:L CS PExpected:S PL C Matrix:A D JA Q HJ C IExpected:J C IA Q HA D J

Iterating over a dictionary example: Gradebook statistics. Write a program that uses the keys(), values(), and/or items() dict methods to find statistics about the student_grades dictionary. Find the following: Print the name and grade percentage of the student with the highest total of points. Find the average score of each assignment. Find and apply a curve to each student's total score, such that the best student has 100% of the total points. The language is in Python. # student_grades contains scores (out of 100) for 5 assignmentsstudent_grades = {'Andrew': [56, 79, 90, 22, 50],'Nisreen': [88, 62, 68, 75, 78],'Alan': [95, 88, 92, 85, 85],'Chang': [76, 88, 85, 82, 90],'Tricia': [99, 92, 95, 89, 99]}   So far I have the first part of the question: for student, scores in student_grades.items():      print(student, sum(scores)/len(scores))

Please answer the question in image. Please don't add anything extra Thank you.

def get_task(task_collection, ...): """ param: task_collection (list) - holds all tasks; maps an integer ID/index to each task object (a dictionary) param: ... (str) - a string that is supposed to represent an integer ID that corresponds to a valid index in the collection returns: 0 - if the collection is empty. -1 - if the provided parameter is not a string or if it is not a valid integer Otherwise, convert the provided string to an integer; returns None if the ID is not a valid index in the list or returns the existing item (dict) that was requested. """

What are the fundamental similarities and differences between arrays and lists? Please include examples.

Overview This program will have you cut and past a dictionary called food_dict from the specifications, the programmatically go through the list to find people who have not yet listed their favorite foods. It will then ask for their foods, update the dictionary, and finally print it at the end. Note: I will change the dictionary during grading Expected Output Example 1 What is Janelle's favorite food? Steak What is Thomas's favorite food? What is Yolanda's favorite food? Soup Here are the favorite foods: Jim's favorite food is Tacos Bob's favorite food is Burgers Janelle's favorite food is Steak Lisa's favorite food is Pizza Thomas's favorite food is Pho Yolanda's favorite food is Soup Finn's favorite food is Bread Specifications • You should submit a single file called M4A5.py • It should follow the submission standards outlined here: Submission Standards • Your program must loop through the dictionary to find empty values. • You must copy this dictionary definition to the top of your…

When an author produces an index for his or her book, the first step in this process is to decide which words should go into the index; the second is to produce a list of the pages where each word occurs. Instead of trying to choose words out of our heads, we decided to let the computer produce a list of all the unique words used in the manuscript and their frequency of occurrence. We could then go over the list and choose which words to put into the index. The main object in this problem is a "word" with associated frequency. The tentative definition of "word" here is a string of alphanumeric characters between markers where markers are white space and all punctuation marks; anything non-alphanumeric stops the reading. If we skip all un-allowed characters before getting the string, we should have exactly what we want. Ignoring words of fewer than three letters will remove from consideration such as "a", "is", "to", "do", and "by" that do not belong in an index. In this project, you…

When an author produces an index for his or her book, the first step in this process is to decide which words should go into the index; the second is to produce a list of the pages where each word occurs. Instead of trying to choose words out of our heads, we decided to let the computer produce a list of all the unique words used in the manuscript and their frequency of occurrence. We could then go over the list and choose which words to put into the index. The main object in this problem is a "word" with associated frequency. The tentative definition of "word" here is a string of alphanumeric characters between markers where markers are white space and all punctuation marks; anything non-alphanumeric stops the reading. If we skip all un-allowed characters before getting the string, we should have exactly what we want. Ignoring words of fewer than three letters will remove from consideration such as "a", "is", "to", "do", and "by" that do not belong in an index. In this project, you…

Program - Python Make a dictionary, the student's name is the key (a string) and the student's test scores is the value (a list).  So it should be a dictionary with six key value pairs in it. Here is data to use.     Brian,94,89,92  Rachel,100,90,65  Jon,67.5,95,100  Brit,0,78,80  Greg,65,100,78  Andrea,55.5,67,79   Now print the dictionary data using a loop that starts with         for key, value in.

Java , Data structures

Programming Language C Note:No Need for Detailed Explanation. The Answer is Enough For Me.

Please Explain your work and this should be in "C Language" and this is a data structure subject Thank you!

DART PROGRAMMING LANGUAGE Q1 Create database of songs: a. Choose one type of collection b. Initialize with data c. Implement functions: i. find by index, ii. find by title iii. find by artist d. Remove item e. Add item

Simple login system  PYTHON Create a static dictionary with a number of users and with the following values:  First name Last name Email address Password Ask the user for:          5. Email address        6. Password Loop (for()) through the dictionary and if (if()) the user is found print the following:          7. Hello, first name last name you have successfully logged in        8. Notify the user if the password and email address are wrong        9. Additional challenge: if you want the program to keep asking for a username and password when the combination is wrong, you will need a while() loop.

Suppose a list contains marks earned in the courses CSE110, PHY111, and MAT110 of each student consecutively in a nested list form. Your task is to take a course name as input and sort the list based on the marks obtained in that course to finally print the names of the students in descending order of marks obtained i.e. from the student who earned the highest marks to the student who earned the lowest. For example, the list may look like stu_lst = [ ["Alan", 95, 87, 91], ["Turing", 92, 90, 83], ["Elon", 87, 92, 80], ["Musk", 85, 94, 90] ] where for each nested list, 1st index holds the name of the student, 2nd index is total marks earned in the CSE110 course, 3rd index is PHY111 marks and 4th index is MAT110 marks. [You cannot use python build-in sort() function, you can call your own sort function or copy your code from previous tasks instead] =============================================================== Sample Input 1 MAT110 Sample Output 1 ['Alan', 'Musk', 'Turing', 'Elon']…

Suppose a list contains marks earned in the courses CSE110, PHY111, and MAT110 of each student consecutively in a nested list form. Your task is to take a course name as input and sort the list based on the marks obtained in that course to finally print the names of the students in descending order of marks obtained i.e. from the student who earned the highest marks to the student who earned the lowest. For example, the list may look like stu_lst = [ ["Alan", 95, 87, 91], ["Turing", 92, 90, 83], ["Elon", 87, 92, 80], ["Musk", 85, 94, 90] ] where for each nested list, 1st index holds the name of the student, 2nd index is total marks earned in the CSE110 course, 3rd index is PHY111 marks and 4th index is MAT110 marks. [You cannot use python build-in sort() function, you can call your own sort function or copy your code from previous tasks instead] =============================================================== Sample Input 1 MAT110 Sample Output 1 ['Alan', 'Musk', 'Turing', 'Elon']…

Question in image. Please explain how to do the Question with the answer. Thank you

Simple Student Management System Build the following app using Python Tkinter library. Using this app, user can • add student information • view all students • search student(s) by name • remove student by id Add • First name, last name, date of birth cannot be blank while adding a specific student information. • However major can be blank, which gets set to "Undefined" if left out blank. • Student Id is automatically generated by the program (ex: 1001, 1002, 1003, 1004 ….) If the user keeps a mandatory field blank (ex: First name) and presses "Add Student" button, it displays the following message box: first name is required If the user successfully enters all the necessary information and presses the "Add Student" button, it displays the following confirmation message box: student added View All When the user presses the "View All" button, it displays all the student’s information (Id, First name, Last name, Date of birth, and Major) in a nice formatted way. Example below: • Must…

Question 4 For this question, let's combine ADTS and dictionaries! Let's try to make an ADT that represents a politician. The politician ADT has a constructor make_politician. There are three selectors, get_name, get_party, and get_age. When implementing an ADT, you have the freedom to choose how you want to represent it. Some common data structures used to represent ADTs are lists and dictionaries. The city ADT was implemented using a list. Now, let's use dictionaries to implement our politician ADT. You must use a dictionary for this question, or else you will not pass the tests.

Coding language: C++. (Try to avoid linked lists if possible please). Add comments. Thanks. • Each functionality component must be implemented as a separate function, though the function does not need to be declared and defined separately • No global variables are allowed • No separate.hor.hpp are allowed • You may not use any of the hash tables, or hashing functions provided by the STL or Boost library to implement your hash table • Appropriate, informative messages must be provided for prompts and outputs You must implement a hash table using the Double Hashing collision strategy and the mid-square base 10 hashing function with an R of 2. Your collision strategy must be implemented as a separate function, though it may be implemented inside your insert/search/delete functions, and should halt an insert / search/delete functions, and should halt an insert/search/delete after table size number of collisions. Your hash function must be implemented as a separate function. Your hash table…

*Data Structures and Algorithm