What happens where you replace the entry in position 4 from a List? Select one: a. Position 4 will be left vacant b. The new entry will end up in position 4 in the List c. The entry that was in position 5 will move up to position 4 d. The entry that was in position 3 will move back to position 4

What happens where you replace the entry in position 4 from a List? Select one: a. Position 4 will be left vacant b. The new entry will end up in position 4 in the List c. The entry that was in position 5 will move up to position 4 d. The entry that was in position 3 will move back to position 4

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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Select problem below. Your post must include: The problem statement. A description of your solution highlighting the use of the split(), join(), lists and the different list operations involved in solving the problems. Include line numbers from your program dont use JAVA Make Username. Create a program that reads a full name as a single string, and and uses the split creates a username with the following rules: The first character of the username is the first character of the first name. The second character of the username is the first letter of the middle name, if one was provided. The rest of the characters will be a prefix of the last name, long enough to meet the length requirement. The username can have up to 8 characters only, and in lowercase. Here is a sample execution:
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']…
hdex mplete the following function according to its docstring using a while loop. The lists we test will not all be sho cribed in English. If you fail any test cases, you will need to read the description and make your own test. def smaller_index(items: list[int]) -> int: 3\ Return the index of the first integer in items that is less than its index, 4. or -1 if no such integer exists in items. 6. >>> smaller_index([2, 5, 7, 99, 6]) 7. -1 8 >>> smaller_index([-5, 8, 9, 16]) 9. 10 >>> smaller_index([5, 8, 9, 0, 1, 3]) 11 3 12 for i in range (len(items)): if items [i] < i: 13 14 15 return i 16 return -1 History X Your solution passed 0 out of 6 cases!
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
How many references must you changes to insert a node between two nodes in a double linked list. Show your answer with a drawing highlighting the new references. Assuming current is the reference of the next-to-last node in a linked list, write a statement that deletes the last node from the list. What is the time complexity of deleting a node from a linked listed? Is it faster than deleting a node from an array? Why?
The index -1 identifies the last element in a list. True False
{7,14,26,43,46,50,81} trace the binary search code and fill out the table for 3 different cases: Search for the value that is in the table. Search for the value that is greater than any value in the list. Search for the value that is smaller than any value in the list. low high Low<high mid call
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What does the following error message normally mean? IndexError: list index out of range Select one: а. This error normally indicates that you have tried to access an element of a list that doesn't exist. O b. This error normally means that you have used the range() function incorrectly. С. This error normally means that you have used a list where you should have used a tuple. d. This error normally means that you used too many lines of code in your program.
As part of this assignment, the program that you will be writing will store current grades in a dictionary using course codes as keys and with values consisting of percent grades in lists. The main functions of this program are to print a student's gradebook, to drop the lowest grade in each course, print the student's gradebook again, drop the course with lowest average, and finally printing the student's gradebook again. This program requires a main function and a custom value-returning function. In the main function, code these basic steps in this sequence (intermediate steps may be missing): start with an empty dictionary that represents a gradebook and then use a while loop to allow the input of course codes from the keyboard. End the while loop when the user presses enter without entering data.within the while loop:for each course entered, use a list comprehension to generate five random integers in the range of 70 through 100. These random integers in a list represent the…
This solution does not work for the question asked. The question submitted clearly shows 2 list boxes on form 1. Is there an updated code?
When a list is visualized, the indices increase to the left and decrease to the right. Question 3 options: False True