1. Write a program in Python to display all duplicate items from a list List=[10,20,30,20,30,50,10,56,29] Expected output: [10,20,30] 2. Write a program in Python to display Reverse Dictionary Mapping Dict={"a":10," b":56,"c":29," d":39} Expected output: {10:" a",56:" b",29:"c",39:" d"} 3. Write a program in Python to print the following pattern: 1*1*1*1*1* 2*2*2*2* 3*3*3* 4*4* 5*

1. Write a program in Python to display all duplicate items from a list List=[10,20,30,20,30,50,10,56,29] Expected output: [10,20,30] 2. Write a program in Python to display Reverse Dictionary Mapping Dict={"a":10," b":56,"c":29," d":39} Expected output: {10:" a",56:" b",29:"c",39:" d"} 3. Write a program in Python to print the following pattern: 11111 2222* 333* 44 5*

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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in python Integer num_samples is read from input, representing the number of data samples to be read from input. List data_list contains the data samples read from the remaining input. For each element in data_list: If the element is greater than 25, output the element followed by ' at index ', the element's index in the list, and ' is flagged'. Otherwise, output the element followed by ' at index ', the element's index in the list, and ' is normal'.
Assume that L is a list of Boolean values, True and False. Write a program in python with a function longestFalse(L) which returns a tuple (start, end) representing the start and end indices of the longest run of False values in L. If there is a tie, then return the first such run. For example, if L is False False True False False False False True True False False 0 1 2 3 4 5 6 7 8 9 10 then the function would return (3, 6), since the longest run of False is from 3 to 6.
**** Write a simple python program that will take this dictionary, the use of fuctions is not permitted: ****** gradePoints = {"A":4,"B":3,"C":2,"D":1,"F":0} and this list: courseList = ["CST 161","Mat 144","ENG 201","PSY 101","HIS 101"] and randomly use elements from each of these lists : gradeList = ["A","B",''B+'',"C","D","F"] creditList = [3,4] and produce a grade point average. Academic average is determined by dividing the total number of qualitypoints earned by the total number of credits taken, whether passed orfailed. The following table is an illustration of this computation:GRADE & QUALITY NUMERICAL POINTSCourse . . . Credits Value Per CourseHIS 101. . . . . .3 C (2) 6PSY 101. . . . . 3 B (3) 9MAT 144. . . . 4 D (1) 4ENG 201. . . . 3 B+ (3.5) 10.5CST 161. . . . . 3 F (0) 0Total credits taken: 16Total quality points earned 29.529.5 divided by 16 results in a 1.8 gradepoint average. Here the gradeList element will be embedded as the key in referencing the…
Write a function multiply_ends (nums) that takes a non-empty list of integers and returns the first integer multiplied by the last integer. For example, if nums is the list [5, 4, 6, 2], the function would return 5 * 2 = 10. If the list has only 1 element, the first and last elements are the same so the function should return the square of the element. For example: Test Result print(multiply_ends( [5, 4, 6, 2])) 10 Answer: (penalty regime: 0, 10, 20, ... %) 1 | Precheck Check
The function swap_list_ends in python takes one parameter, L, which is a list. The function then swaps the first and last items in L and returns the object None. Notice that since L is mutable, the changes the function makes to L are visible back in the calling program. SPECIAL CASE: If the list 'L' is empty, then the function does nothing to L and returns None. For example: Test Result L = [1, 3, 9, 2] if not(swap_list_ends(L) is None): print("Error: function should return None") print(L) [2, 3, 9, 1] L = ['super', 'awesome', 'excellent'] if not(swap_list_ends(L) is None): print("Error: function should return None") print(L) ['excellent', 'awesome', 'super'] L = [True, False] if not(swap_list_ends(L) is None): print("Error: function should return None") print(L) [False, True]
Write a program in C or Java to delete an element at desired position from an array.Test Data :Input the size of array : 5Input 5 elements in the array in ascending order:element - 0 : 1element - 1 : 2element - 2 : 3element - 3 : 4element - 4 : 5Input the position where to delete: 3Expected Output :The new list is : 1 2 4 5
In python implement the build_dictionary() function to build a word frequency dictionary from a list of words. Ex: If the words list is: ["hey", "hi", "Mark", "hi", "mark"] the dictionary returned from calling build_dictionary(words) is: {'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1} Ex: If the words list is: ["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"] the dictionary returned from calling build_dictionary(words) is: {'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1} The main code builds the word list from an input string, calls build_dictionary() to build the dictionary, and displays the dictionary sorted by key value.
In python: student_dict is a dictionary with students' name and pedometer reading pairs. A new student is read from input and added into student_dict. For each student in student_dict, output the student's name, followed by "'s pedometer reading: ", and the student's pedometer reading. Then, assign average_value with the average of all the pedometer readings in student_dict..
In Python write a function that will play Rock, Paper, Scissors with itself. It will pick two random elements from a list. Then the function must know if random element #1 won, lost or drawed. The list is rps=[‘rock’, ‘paper’, ‘scissors’] Then the function must add to a dictionary the number of times the first element won per option in the list. Example{‘rock’:’400’, ‘paper’:’300’, ‘scissors’:’300’ } You need to run this at least 1000 times. You can either create a single thread, or you can create multiple threads. You need to use the random module and the random.choice(LISTNAME) to pick a random element from a list. Here's what I have so far: import random rps = ["rock", "paper", "scissors"] NumRock = 0 NumPaper = 0 NumScissors = 0 rand1 = random.choice(rps) rand2 = random.choice(rps) if rand1 == rand2: print("it's a tie") elif rand1 == "rock": if rand2 == "scissors": NumRock += 1…
write a python program for this question. You will be given a dictionary, where the name of a student will be the key and a list of courses will be the value.Now, you have to take a course name as input until the user gives 'STOP' in the input. Your task is to display the list of the students taken that course after each input.Given Dictionary{ 'Mike' : ['CSE110','ENG101','MAT110'],'Simon' : ['CSE111','PHY111','MAT110', 'CSE230'], 'Shawn' : ['CSE110','ENG101','MAT120','CSE230'], 'Alice' : ['CSE110','ENG091','MAT092'] }================================================Sample Input 1CSE110MAT110CSE260STOPSample Output 1[ 'Mike', 'Shawn', 'Alice' ][ 'Mike', 'Simon'][ ]Explanation 1:Mike, Shawn and Alice are doing CSE110Mike and Simon are doing MAT110No student is doing CSE260
Write a program that will take this dictionary using python : gradePoints = {"A":4,"B":3,"C":2,"D":1,"F":0} and this list: courseList = ["CST 161","Mat 144","ENG 201","PSY 101","HIS 101"] and randomly use elements from each of these lists : gradeList = ["A","B","C","D","F"] creditList = [3,4] and produce a grade point average. Academic average is determined by dividing the total number of qualitypoints earned by the total number of credits taken, whether passed orfailed. The following table is an illustration of this computation:GRADE & QUALITY NUMERICAL POINTSCourse . . . Credits Value Per CourseHIS 101. . . . . .3 C (2) 6PSY 101. . . . . 3 B (3) 9MAT 144. . . . 4 D (1) 4ENG 201. . . . 3 B+ (3.5) 10.5CST 161. . . . . 3 F (0) 0Total credits taken: 16Total quality points earned 29.529.5 divided by 16 results in a 1.8 gradepoint average. Here the gradeList element will be embedded as the key in referencing the grade points. (e.g. gPoints = gradePoints[random gradeList…
please use python language