Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- python: def character_gryffindor(character_list):"""Question 1You are given a list of characters in Harry Potter.Imagine you are Minerva McGonagall, and you need to pick the students from yourown house, which is Gryffindor, from the list.To do so ...- THIS MUST BE DONE IN ONE LINE- First, remove the duplicate names in the list provided- Then, remove the students that are not in Gryffindor- Finally, sort the list of students by their first name- Don't forget to return the resulting list of names!Args:character_list (list)Returns:list>>> character_gryffindor(["Scorpius Malfoy, Slytherin", "Harry Potter, Gryffindor", "Cedric Diggory, Hufflepuff", "Ronald Weasley, Gryffindor", "Luna Lovegood, Ravenclaw"])['Harry Potter, Gryffindor', 'Ronald Weasley, Gryffindor']>>> character_gryffindor(["Hermione Granger, Gryffindor", "Hermione Granger, Gryffindor", "Cedric Diggory, Hufflepuff", "Sirius Black, Gryffindor", "James Potter, Gryffindor"])['Hermione Granger, Gryffindor',…arrow_forwardPlease note global variables are not allowed to use in this assignment except of global constants. Find Median. In statistics, the median of a set of values is the value that lies in the middle when the values are arranged in sorted order. If the set has an even number of values, then the median is taken to be the average of the two middle values. Write a C++ program that determines the median of a sorted array. In the main function, Declare and initialize two arrays. One array must contain an even number of values, for example {91, 71, 67, 78, 76, 82, 100, 89}. The other array must contain an odd number of values, for example {76, 71, 78, 67, 82}. Call a function named sortArray to sort the values in each array in ascending order. should take an array of numbers and an integer indicating the size of the array as the arguments, and sort the array in ascending order. This function does not return any value. Call another function named findMedian to find the median of the values in…arrow_forwardIn C ++ You will need to sort whitespace-separated integers using three different sort algorithms (described here: http://theoryapp.com/selection-insertion-and-bubble-sort/ and https://en.wikipedia.org/wiki/Insertion_sort). For each of the three sorting algorithms (selection, insertion, and bubble), your program should output the initial list of numbers as well as after each swap. Note: You should use the Wikipedia entry for insertion sort. Do not perform swaps if they don't change the vector. Example Input: 1 1 6 3 8 4 2 3 9 2 4 Output: 1 Selection Sort 2 1 6 3 8 4 2 3 9 2 4 3 1 2 3 8 4 6 3 9 2 4 4 1 2 2 8 4 6 3 9 3 4 5 1 2 2 3 4 6 8 9 3 4 6 1 2 2 3 3 6 8 9 4 4 7 1 2 2 3 3 4 8 9 6 4 8 1 2 2 3 3 4 4 9 6 8 9 1 2 2 3 3 4 4 6 9 8 10 1 2 2 3 3 4 4 6 8 9 11 Insertion Sort 12 1 6 3 8 4 2 3 9 2 4 13 1 3 6 8 4 2 3 9 2 4 14 1 3 6 4 8 2 3 9 2 4 15 1 3 4 6 8 2 3 9 2 4 16 1 3 4 6 2 8 3 9 2 4 17 1 3 4 2 6 8 3 9 2 4 18 1 3 2 4 6 8 3 9 2 4 19 1 2 3 4 6 8 3…arrow_forward
- python: def character_gryffindor(character_list):"""Question 1You are given a list of characters in Harry Potter.Imagine you are Minerva McGonagall, and you need to pick the students from yourown house, which is Gryffindor, from the list.To do so ...- THIS MUST BE DONE IN ONE LINE- First, remove the duplicate names in the list provided- Then, remove the students that are not in Gryffindor- Finally, sort the list of students by their first name- Don't forget to return the resulting list of names!Args:character_list (list)Returns:list>>> character_gryffindor(["Scorpius Malfoy, Slytherin", "Harry Potter,Gryffindor", "Cedric Diggory, Hufflepuff", "Ronald Weasley, Gryffindor", "LunaLovegood, Ravenclaw"])['Harry Potter, Gryffindor', 'Ronald Weasley, Gryffindor']>>> character_gryffindor(["Hermione Granger, Gryffindor", "Hermione Granger,Gryffindor", "Cedric Diggory, Hufflepuff", "Sirius Black, Gryffindor", "JamesPotter, Gryffindor"])['Hermione Granger, Gryffindor', 'James…arrow_forwardC++arrow_forwardPLEASE DO NOT USE BUILT IN FILES OR FUNCTIONS! Write a program in c++ and make sure it works, that reads a list of students (first names only) from a file. It is possible for the names tobe in unsorted order in the file but they have to be placed in sorted order within the linked list.The program should use a doubly linked list.Each node in the doubly linked list should have the student’s name, a pointer to the next student, and apointer to the previous student. Here is a sample visual. The head points to the beginning of the list. Thetail points to the end of the list.When inserting consider all the following conditions:if(!head){ //no other nodes}else if (strcmp(data, head->name)<0){ //smaller than head}else if (strcmp(data, tail->name)>0){ //larger than tail}else{ //somewhere in the middle} When deleting a student consider all the following conditions:student may be at the head, the tail or in the middleBelow, you will find a sample of what the…arrow_forward
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