Dictionaries: Given the following dictionary definitions: Foo = {1:’B’, 2:’D’, 3:’C’, 4:’A’} Bar = {A:’3’,’B’:1,’C’:2,’D’:4}
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- Dictionaries:
- Given the following dictionary definitions:
Foo = {1:’B’, 2:’D’, 3:’C’, 4:’A’}
Bar = {A:’3’,’B’:1,’C’:2,’D’:4}
Give the resulting value for each of the following expressions:
Foo[Bar[‘A’]]
Foo[Bar[‘B’]]
Bar[Foo[1]]
Bar[Foo[2]]
- Use a for loop to display the key/value pairs in the above dictionary, one pair to a line.
Step by step
Solved in 2 steps with 1 images
- 1. Write a function invert_dict to reverse a dictionary, for example: >>> eng2sp = {'one': 'uno', 'two': 'dos', 'three': 'tres'} >>> sp2eng = invert_dict(eng2sp) >>> sp2eng {'uno':'one', 'dos':'two', 'tres':'three'} 2. Write a function print_dict to print all the key-values in a dictionary, for example: >>> d2 {'a': 'one', 'b': 'two', 'c': 'Three'} >>> print_dict(d2) a:one b:two c:ThreeAssume that d refers to a dictionary. Write a statement in Python that retrieves from the dictionary the value that is associated with the key 'answer', and assigns this value to the result variable.create a python program Problem StatementImplement all the functions of a dictionary (ADT) using hashing.Data: • Set of (key, value) pairs. Keys are mapped to values. Keys must be comparable. Keys must be unique.Standard Operations: • Insert(key, value) • Find(key), • Delete(key) This is the example output of the program. ====== CPE 204L Dictionary =====[1] : Insert Word[2] : Find Word[3] : Delete Word[4] : Exit============================Enter your choice : 1Enter word: prettyEnter meaning: beautifulPretty is successfully inserted into dictionary====== CPE 204L Dictionary =====[1] : Insert Word[2] : Find Word[3] : Delete Word[4] : Exit============================Enter your choice : 1Enter word: prettyEnter meaning: beautifulDuplicate Word! Pretty is not successfully inserted into dictionary.====== CPE 204L Dictionary =====[1] : Insert Word[2] : Find Word[3] : Delete Word[4] : Exit============================Enter your choice : 2Enter word: prettyWord is Present in…
- Homework Assignment-1Topics: Functions, Dictionary, ImportProblem description: Write a python application to simulate an online clothing system. Thepurpose of this assignment is to gain experience in Python dictionary structure, create basicPython functions and import a module.Design solution: The template file contains a list of clothes item sold, each item in the listcontains the item id, name of the item and the prices. The program will generate an items_dictwhere each key is the item id of the cloth and the values will be a list of item name and priceinformation. A customer will be presented with a main menu with 4 different options: displayall items, add an item to cart, checkout and exit the program. A customer can buy an item byentering the ID of the item. This program implements a dictionary called cart, where each key isthe item id and the values are the list of name, price and quantity that user chooses topurchase. The program keeps repeating by displaying the main menu to…What are the advantages of using a dictionary data structure?In Python a) Create dictionary that stores a single record of information with the attributes (i.e., columns): Name, Age, and School for a student named Jane who is 35 years old and studies at UCLA. b) Write the Python statement that grabs the value of the attribute School from this record. c) Write a Python statement that lists all the attributes of the dictionary. (Use autocompletion to find an appropriate method) d) Write a Python statement that lists all the items (formal word that means the key-value combos). Use autocompletion to find an appropriate method. e) Suppose there was a modification needed for the record and we need to correct the name to be Jane Doe rather than Jane. How would index into the record and assign this new value to the name attribute?
- Complete this C++ code with the following requirements: Write a program that will allow a user to enter students into a database. The student information should include full name, student ID, GPA and status. The program should allow delete any student based on student ID. Program must use linked list. No vectors or arrays. C++. # include<iostream>using namespace std;class Node{ string full_name, status; int studentID; float GPA; Node* next;};Node* head= new Node();bool check (int x){ if(head==NULL){ return false; } Node* t=new Node(); t=head; while(t!=NULL){ if(t->studentID==x){ return true; t=t->next; } } return false;}void insert(int studentID, string full_name, string status, float GPA){ if(check(student_id)){ cout<<"Student already exists in the record"<<endl; return; } Node *t=new Node(); t->studentID=studentID; t->full_name=full_name;…Data structures dict_contains_keys(items:set, example_dict:dict)->bool This function will have two parameters. The first is a set of numbers known as Number Set. The second is a dictionary known as Dictionary. Dictionary will have keys as integers and values as letters. The functions should return true if at least one of the numbers in the Number set is a key in Dictionary. It should return false otherwise. Example: Items: {8, 10, 5} Example: {9: 'F', 10: 'X'} Expected: True Items: {8, 9, 5, 1} Example: {6: 'i', 5: 'Y', 1: 'N', 0: 'E'} Expected: True Items: {9, 10, 4} Example: {5: 'i', 3: 'o', 1: 'N'} Expected: FalseCreate Java statements based on the following requirements: 1. Create an empty hash map named programs that will handle keys and values that are both of String type. 2. Map the following pairs: • BSIT – Bachelor of Science in Information Technology • BSCS – Bachelor of Science in Computer Science • BSIS – Bachelor of Science in Information Systems 3. Display the keys in a single line. 4. Delete the first entry. 5. Check whether the map contains the key "BSCpE".
- # viewGame(G, i) takes a game description G (a dictionary of the type# produced by newGame()) and an integer player index i and returns a# string that, when printed, describes the state of the game from# player i's perspective.## Example:# >>> viewGame(G, 1)# '\nPlayer2 to play (score=0):\n 1[ ] 2[ ] 3[ ]'## Note the spacing and explicit newlines, and the fact that the player# numbers use 1-based indexing even though internally the game data# structures use Pythonic 0-based indexing.*Java code* Implement a data structure called RunningTotal supporting the following API: a) RunningTotal() - creates an empty running-total data structure b) void add(int value) - adds the given value to the data structure c) void remove() - removes the least-recently added value d) int sum() - returns the sum of values in the data structure e) double average() - returns the average of values in the data structure Here's a Example: RunningTotal rt = new RunningTotal ();rt . add (1); // 1 ( adds 1 )rt . add (2); // 1 2 ( adds 2 )rt . add (3); // 1 2 3 ( adds 3 )rt . sum (); // 1 2 3 ( returns 6 )rt . add (4); // 1 2 3 4 ( adds 4 )rt . remove (); // 2 3 4 ( removes 1 )rt . sum (); // 2 3 4 ( returns 9 )rt . average (); // 2 3 4 ( returns 3.0 )Code the following in Python. 1.Assume each of the variables set1 and set2 references a set. Write code that creates another set containing the elements that are not shared by set1 and set2, and assigns the resulting set to the variable set3. 2.Assume the following list exists: numbers = [1, 2, 3, 4, 5] Write a statement that uses a dictionary comprehension to create a dictionary in which each element contains a number from the numbers list as its key, and the product of that number times 10 as its value. In other words, the dictionary should contain the following elements: {1: 10, 2: 20, 3: 30, 4: 40, 5: 50} 3.Assume the following dictionary exists: test_averages = {'Janelle':98, 'Sam': 87, 'Jennifer':92, 'Thomas':74, 'Sally':89, 'Zeb':84} Write a statement that uses a dictionary comprehension to create a second dictionary named high_scores. The high_scores dictionary should contain all the elements of the test_averages dictionary in which the value is 90 or greater.
