Which of the below commands allows for accessing the first element in a list L (assuming there is atleast one element in that list)?a) L[0]b) L[-len (L) ]c) L[:1] [0]d) All of the above.

Answered: Which of the below commands allows for…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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I need some help completing this code i am trying to sort the file into 7 columns of data i have listed what i need to do i am just unsure on how i am supposed to do it rows = file.read().splitlines() number_of_cols = len(rows[0]) for c in range(number_of_cols): # todo: create a new list for column c # and have another loop that appends the appropriate data to that column list # then append that column to the return data return return_data
Python Complete the get_2_dimensional_list() function that takes two parameters: 1. An integer num_rows. 2. An integer num_columns. The function should return a 2D list with num_rows rows and num_columns columns. Each element is set to a random value between 1 and 99 included. If both parameters num_rows and num_columns are set 0, the function returns an empty list. You MUST use a for...in.range loop to create the 2D list. You do not need to import the random module as it has already been done for you. Some examples of the function being called are shown below. For example: Test random.seed (15) num_rows - 2 num columns 5 matrix = get_2_dimensional_list(num_rows, num_columns) print(matrix) random.seed (132) num_rows=2 num_columns 2 matrix = get_2_dimensional_list(num_rows, num_columns) print(matrix) Result [[27, 2, 67, 95, 5], [21, 31, 3, 8, 88]] [[53, 20], [53, 8]]
Integer m and string my_name are read from input. Then, four strings are read from input and stored in the list names_data. Delete the first element in names_data, and then replace the element at index m with my_name.
True/False Select true or false for the statements below. Explain your answers if you like to receive partial credit. 3) Which of the following is true about the insertBeforeCurrent function for a CircularLinked List (CLL) like you did in programming exercise 1?a. If the CLL is empty, you need to create the new node, set it to current, andhave its next pointer refer to itselfb. The worst case performance of the function is O(n)c. If you insert a new element with the same data value as the current node, theperformance improves to O(log n)
Names = ['Molly', 'Lan', 'Rudy', 'Eliza'] Wage = [15.30, 19.34, 11.78, 13.23] HireDate = ['09-08-2013', '04-12-2011', '02-09-2018', '10-06-2020'] Convert the HireDate to Date/Time data type using list comprehension Zip the lists Names, Wage and the HireDate that was converted to date/time data type Suppose that raise for next year is 5% for those who have completed at least 5 years of employment by the end of 2023 and 2.5% otherwise. Iterate over the zipped object
I keep on getting this error g_list.remove(r)ValueError: list.remove(x): x not in list
def city_dict(adict): """ Question 6 -Given a dictionary that maps a person to a list of countries they want to travel to, return a dictionary with the value being the list sorted by the last letter in each countries name. If two countries have the same last letter, sort by the first letter. -For an extra challenge, try doing this in one line (Optional). Args: adict (dict) Returns: dict >>> city_dict({"Pablo": ["Belgium", "Canada", "Germany"], "Athena": ["Italy", "France", "Egypt"], "Liv": ["Japan", "Bolivia", "Greece"]}) {'Pablo': ['Canada', 'Belgium', 'Germany'], 'Athena': ['France', 'Egypt', 'Italy'], 'Liv': ['Bolivia', 'Greece', 'Japan']} >>> city_dict({"Jacob": ["Bahamas", "Brazil", "Chile"], "Lexi": ["Colombia", "Finland", "Panama"], "Emily": ["Ireland", "Russia", "Kenya", "Jordan"]}) {'Jacob': ['Chile', 'Brazil', 'Bahamas'], 'Lexi': ['Colombia', 'Panama', 'Finland'], 'Emily': ['Kenya',…
Write a function called find_duplicates which accepts one list as a parameter. This function needs to sort through the list passed to it and find values that are duplicated in the list. The duplicated values should be compiled into another list which the function will return. No matter how many times a word is duplicated, it should only be added once to the duplicates list. NB: Only write the function. Do not call it. For example: Test Result random_words = ("remember","snakes","nappy","rough","dusty","judicious","brainy","shop","light","straw","quickest", "adventurous","yielding","grandiose","replace","fat","wipe","happy","brainy","shop","light","straw", "quickest","adventurous","yielding","grandiose","motion","gaudy","precede","medical","park","flowers", "noiseless","blade","hanging","whistle","event","slip") print(find_duplicates(sorted(random_words))) ['adventurous', 'brainy', 'grandiose', 'light', 'quickest', 'shop', 'straw', 'yielding']…
4 ete t of With the following lists: list1 = [x + y for x in ['a', 'b', 'c'] for y in ['1', '2', '3']] list2 = [[x + y for x in ['a', 'b', 'c']] for y in ['1', '2', '3']] which option is true? Select one: A. len(list1)> len(list2) B. 'a1' is an element (or subelement) for list1 whereas '1a' is for list2 C. list1 and list2 will error because numbers and letters cannot be added. D. Both A and B are true.
In DrRacket, which of the following is the signature of primitive append? A) List List -> ListOfList B) List List -> List C) ListOfList -> ListOfList D) List List ... List -> ListOfList E) List List ... List -> List
Write a function called list_to_dict(lst) that takes a 2-D list of sales records of this form.[["customer1", "bread", 5], ["customer2", "bread", 4.5], ["customer1", "egg", 6.75]]Your function will store the sales information in a dictionary, where each {key:value} pair of the dictionary stores {a unique customer: [ a list of all products purchased by this customer, total cost of these products]}, and returns the dictionary. Sample run,sales = [ ["customer1", "bread", 5], ["customer2", "bread", 4.5], ["customer1", "egg", 6.75],["customer2", "milk", 4.35], ["customer3", "egg", 3.6], ["customer4", "bread", 4.5],["customer1", "milk", 4.35], ["customer2", "egg", 3.6], ["customer4", "milk", 4.35] ]>>> record = list_to_dict(sales)>>> display(record)customer1 : [['bread', 'egg', 'milk'], 16.1]customer2 : [['bread', 'milk', 'egg'], 12.45]customer3 : [['egg'], 3.6]customer4 : [['bread', 'milk'], 8.85]
def my_index_1(my_list:List[int], my_element:int)->int:"""Our version of the one-argument version of the index function.https://docs.python.org/dev/library/stdtypes.html#common-sequence-operations)This function takes a list and an element, and returns the smallestindex where the element occurs in the list. This function returnsNone if the element is not in the list.Arguments:my_list (list): A list of integers.my_element (int): The element to be found.Returns:int: The smallest index at which my_element is found in my_list.Examples:>>> print(my_index_1([], 2))None>>> print(my_index_1([1, 2, 3], 2))1>>> print(my_index_1([3, 1, 2, 3, 1], 2))2>>> print(my_index_1([3, 1, 2, 3, 1], 3))0""" Please solve this in Python

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Which of the below commands allows for accessing the first clement in a list L (assuming there is at least one element in that list)? a) L[0] b) L[-len (L)] c) L[:1] [0] d) All of the above.