a Strings > Exercise-Making a ListExercise: Making a ListLists are great. Here are some constants describing some of the things you've learned about strings so far:6 let constants = "Declaring string constants"7 let unicode = "Unicode characters ()"8 let combining = "Combining strings using +"9 let interpolation = "String interpolation (aka Fill in the Blanks)"10 let escaping = "Escape characters for \"special powers\""11 let newline = "Making new lines"ExperimentMake a new string constant that is a list of the things you've learned, with each entry on a new line. Make sure you add the result to the playground page so that you cansee the list properly.1516171819Previous | page 13 of 16 | Next: Exercise: A Restaurant22

Since no programming language is mentioned, I am using javascript. Code:let constants="Declaring…

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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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Solve in Python: A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes in word pairs that consist of a name and a phone number (both strings), separated by a comma. That list is followed by a name, and your program should output the phone number associated with that name. Assume the search name is always in the list. the input is: Joe,123-5432 Linda,983-4123 Frank,867-5309 Frank the output is: 867-5309
Solve in Python: A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes in word pairs that consist of a name and a phone number (both strings), separated by a comma. That list is followed by a name, and your program should output the phone number associated with that name. Assume the search name is always in the list. Ex: If the input is: Joe,123-5432 Linda,983-4123 Frank,867-5309 Frank the output is: 867-5309
Which best describes this axiom: ( List ( ) ) . getLength ( ) = 0 None of these You cannot get the length of a newly created list A newly created list has a length A newly created list has a length of zero
) Write list comprehensions to generate the following:i) If numlist contains a list of numbers, create a new list that contains only thosenumbers that are less than 100. (e.g. [42, 130, 7, 100, 101] becomes [42, 7])ii) The numbers from 3 to 30 that are multiples of 3 (i.e. 3, 6, 9, 12, 15... 30)iii) The numbers from 3 to 30 that are multiples of both 3 and 2 (i.e. 6, 12, 18...)iv) If wordlist contains a list of strings, create a new list that has the words that startwith “p” or “P”. (e.g. [“Apple”, “pear”, “avocado”, “Pumpkin”] becomes[“pear”,”Pumpkin”] )
Make a list called sandwich_orders and fill it with the names of varioussandwiches. Then make an empty list called finished_sandwiches. Loop throughthe list of sandwich orders and print a message for each order, such as I madeyour tuna sandwich. As each sandwich is made, move it to the list of finishedsandwiches. After all the sandwiches have been made, print a message listing each sandwich that was made.
A) Given a list, iterate it, and display numbers divisible by five, and if you find a number greater than 150, stop the loop iterations list = [12,15,32,42,55,75,122,132,150,180,200]
Question-2 a) You might have heard about the "Guess the Word Game", so in this game the user has to guess the letter(s) of the word one by one. There are n chances given to guess its letters where n is the number of letters in that word. You have to implement given scenario with the help of “Doubly Linked List”. B) Assume you have a folders of (images and videos) in your computer which contain some random mix numerical values. Your task is to separate images (e.g odd values) and videos (e.g Even values). So that all the images and videos are stored in separate folders (lists). While separating make sure that any of the folder (lists) should not contain any duplicate file or duplicate value. In this task images and videos odd & even numbers and folder means a single list of mix value. e.g: linkedlists (odd, even). Design a method for above task which will create two separate linked lists and write main method to test your program. FOLDER (VIDEO AND IMAGES:ODD…
A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow. Word pairs consist of a name and a phone number (both strings), separated by a comma. That list is followed by a name, and your program should output the phone number associated with that name. Output "None" if name is not found. Ex: If the input is: 3 Joe,123-5432 Linda,983-4123 Frank,867-5309 Frank the output is: 867-5309 Your program must define and call the following function. The return value of GetPhoneNumber is the phone number associated with the specific contact name.string GetPhoneNumber(vector<string> nameVec, vector<string> phoneNumberVec, string contactName) Hint: Use two vectors: One for the string names, and the other for the string phone numbers.
Here is the code I used. It is almost correct. Can you please help me figure this out please? import random # Functions for generating lottery numbers, counting matches, and simulating plays def generate_lottery_numbers(): """ Generates a list of 5 random integers between 1 and 42, inclusive, with no duplicates. Returns: list: A list of lottery numbers """ return random.sample(range(1, 43), 5) def count_matches(my_list, lottery_list): """ Takes two lists of equal length representing the player’s chosen number list and the generated lottery list and returns the number of matches between my_list and lottery_list. For example, count_matches([10, 6, 20, 5, 7], [30, 6, 7, 40, 5]) will return 3, since both lists contain 5, 6, 7. Parameters: my_list (list): Your lottery numbers. lottery_list (list): A list of the winning numbers. Returns: int: The number of matching integers """ return len(set(my_list) &…
Here is the code I used. It is almost correct. Can you please help me figure this out please? import random # Functions for generating lottery numbers, counting matches, and simulating plays def generate_lottery_numbers(): """ Generates a list of 5 random integers between 1 and 42, inclusive, with no duplicates. Returns: list: A list of lottery numbers """ return random.sample(range(1, 43), 5) def count_matches(my_list, lottery_list): """ Takes two lists of equal length representing the player’s chosen number list and the generated lottery list and returns the number of matches between my_list and lottery_list. For example, count_matches([10, 6, 20, 5, 7], [30, 6, 7, 40, 5]) will return 3, since both lists contain 5, 6, 7. Parameters: my_list (list): Your lottery numbers. lottery_list (list): A list of the winning numbers. Returns: int: The number of matching integers """ return len(set(my_list) &…
python help Q7: No Repeats Implement no-repeats, which takes a list of numbers s as input and returns a list that has all of the unique elements of s in the order that they first appear, but no repeats. For example, (no-repeats (list 5 4 5 4 2 2)) evaluates to (5 4 2). Hints: To test if two numbers are equal, use the = procedure. To test if two numbers are not equal, use the not procedure in combination with =. You may find it helpful to use the filter procedure. (define (no-repeats s) 'YOUR-CODE-HERE ) ;;; Tests (no-repeats (list 5 4 5 4 2 2)) ; expect (5 4 2) Q8: Substitute Write a procedure substitute that takes three arguments: a list s, an old word, and a new word. It returns a list with the elements of s, but with every occurrence of old replaced by new, even within sub-lists. Hint: The built-in pair? predicate returns True if its argument is a cons pair. Hint: The = operator will only let you compare numbers, but using equal? or eq? will let you compare symbols as…
IN python Given a list and an integer, determine if that integer is "everywhere" in the list. We define a value as being "everywhere" if, for every pair of adjacent elements in the list, at least one element in the pair is that value. Return true if the given value is "everywhere" in the list. Otherwise, return false. The first input is the comma delimited string (use .split() to turn it into a list). The next input is the integer that we are trying to determine is "everywhere". Sample Input 1 1,2,1,3 1 Sample Output 1 True There are three pairs in this list: (1,2), (2,1), and (1,3). Since 1 is in three of these pairs, it is "everywhere". Thus, we return true. Sample Input 2 1,2,1,3 2 Sample Output 2 False There are three pairs of adjacents in this list: (1,2), (2,1) and (1,3). Since 2 is NOT in all pairs, it is not "everywhere". Thus, we return false. Sample Input 3 1,2,1,3,4 1 Sample Output 3 False The input is not in all "pairs", e.g., not in (3, 4). Thus, we return false.

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