c. Write the answers next to each part of the question.Given Vist1 = [30, 1, 2, 1, 0] and list2 = [1, 21, 13], what is thereturn value of each of the following statements?list1 < list2listl <= list2Mistl == list2Mist1!= list2listl> list2list1 >= list2123456eral All Employees (unrestricted)O

Correct Answers list1 < list2 -- False list1 <= list2 -- False list1 == list2 -- False…

c. Write the answers next to each part of the question. Given Vist1 = [30, 1, 2, 1, 0] and list2 = [1, 21, 13], what is the return value of each of the following statements? H list1 < list2 listl <= list2 Mistl == list2 list1!= list2 listl> list2 list1 >= list2 123456 eral All Employees (unrestricted)

c. Write the answers next to each part of the question. Given Vist1 = [30, 1, 2, 1, 0] and list2 = [1, 21, 13], what is the return value of each of the following statements? H list1 < list2 listl <= list2 Mistl == list2 list1!= list2 listl> list2 list1 >= list2 123456 eral All Employees (unrestricted)

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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Modify the sample code to prompt the user for a name. Have theprogram search the existing list for the entered name. If thename is in the list, display the corresponding phone number;otherwise display this message,The name is not in the current phone directory. #include<iostream>#include<iomanip> using namespace std;const int MAXNAME = 30;const int MAXTEL = 15;struct Tele_typ{char name[MAXNAME];char phone_no[MAXTEL];Tele_typ* nextaddr;};void display(Tele_typ*);int main(){Tele_typ t1 = { " Cage, Mark", "(555) 898-2392" };Tele_typ t2 = { " Dolan, Nick", "(555) 682-3104" };Tele_typ t3 = { " Lennon, John", "(555) 718-4581" };Tele_typ* first; first = &t1; t1.nextaddr = &t2; t2.nextaddr = &t3; t3.nextaddr = NULL; display(first); return 0;}void display(Tele_typ * contents) // of type Tele_typ {while (contents != NULL){cout.setf(ios::left);cout.width(25); cout << '\n' << contents->name;cout.width(20); cout << contents->phone_no;contents =…
How to write reporting function on this question This program implements the buying and selling of stocks. It starts by printing a welcome message Welcome to mystocks.com Then a main menu of choices for the user is output. Reporting, buying or selling? (0=quit, 1=report, 2=buy, 3=sell): The program ends with a goodbye message. Thank you for trading with mystocks.com Use doubly linked list of stock_t structures. stock_t structure looks like: #define MAX_TICKER_LENGTH 6 typedef struct stock_t { char ticker[MAX_TICKER_LENGTH]; date_t date; // date bought int numShares; double pricePerShare; } stock_t; date_t structure looks like: typedef struct date_t { int month, day, year; } date_t; Create the following files in a directory: date.h: contains the above date_t structure • stock.h and stock.c: contain the stock structure and any constants and stock function prototypes. Eg: a print stock function. • node.h, node.c: contain at least the node typdef and initNode function •…
In this coding challenge, you will be retrieving email usernames from a string. You will write a function named get_usernames () that takes in a string as it's input parameter, and returns a list of email usernames in the string. The input strings will contain 0 or more emails in the format and the '@' symbol will only appear in the context of an email. The order of usernames should match the order in the input text. username@domainname, For example: EXAMPLE 1 text: "If you need help on an assignment, email help@ucsd.edu or support@gmail.com" return: ['help', 'support'] EXAMPLE 2 text: "Good morning! I hope you're having a great time with CSE 8A!" return: [] EXAMPLE 3 text: "I've been having a lot of trouble reaching you, can you please email me at cse@ucsd.edu? return: ['cse', 'cse'] Here is the problem description: Function Name: get_usernames Parameter: text - A string corresponding to a piece of text containing 0 or more emails. Return: A list of the email usernames in the input…
JS Write a function named number_of_pairs whose parameter is an object/dictionary with strings as keys and integers as values. Your function should returns the number of key-value pairs in the parameter.
Modify the sample code to prompt the user for a name. Have theprogram search the existing list for the entered name. If thename is in the list, display the corresponding phone number;otherwise display this message,The name is not in the current phone directory. #include<iostream>#include<iomanip> using namespace std;const int MAXNAME = 30;const int MAXTEL = 15;struct Tele_typ{char name[MAXNAME];char phone_no[MAXTEL];Tele_typ* nextaddr;};void display(Tele_typ*);int main(){Tele_typ t1 = { " Cage, Mark", "(555) 898-2392" };Tele_typ t2 = { " Dolan, Nick", "(555) 682-3104" };Tele_typ t3 = { " Lennon, John", "(555) 718-4581" };Tele_typ* first; first = &t1;t1.nextaddr = &t2;t2.nextaddr = &t3;t3.nextaddr = NULL;display(first);return 0;}void display(Tele_typ * contents) // of type Tele_typ {while (contents != NULL){cout.setf(ios::left);cout.width(25); cout << '\n' << contents->name;cout.width(20); cout << contents->phone_no;contents =…
Define the function lake_to_tli3_dict(readings) that takes a list of (lake_name, chla, tn, tp) tuples and returns a dict mapping lake names to trophic level index values. That is, the keys are lake names and the values will be TLI3 values. Notes: You will need to have import math as your first line of code. You must include and use/call the trophic_level_index function that you wrote in Question 1. trophic_level_index must still work as specified in Question 1. Lakes should be added to the dictionary in the same order as they appear in the readings list. If a lake appears in the readings list more than once, then the TLI for the last occurrence in the readings list should be the one that appears in the result. (This should happen naturally, since the lake name can only occur in the dictionary once.) For example: Test Result names_cnp_1 = [('Lake Brunner', 0.8, 218.0, 6.0), ('Lake Carrot', 5.1, 505.0, 18.5) ] tli3_dict = lake_to_tli3_dict(names_cnp_1 ) print(tli3_dict)…
This code is a part of a C dictionary. Please write the code for the below requirements. dict_get Next, you will implement: char* dict_get (const dict_t* dict, const char* key); This function goes through the list given by dict. If you use the above structure, this means starting at el = dict->head and checking each time whether the key at el is key; if it is not, we set el = el->next, until either key is found, or we reach el == NULL. To compare key with el->key, we need to compare one by one each character in key with those in el->key. Remember that strings in C are just pointers (memory addresses) to the first character in the string, so comparing el->key == key will not do what you want. So how do you even get the length of a string s? You would start at memory location s and advance as long as the byte at s (i.e. *s) is not the end-of-string marker (\0, the NULL character). This can get a bit messy, so luckily, you are allowed to use the string comparison…
4 ete t of With the following lists: list1 = [x + y for x in ['a', 'b', 'c'] for y in ['1', '2', '3']] list2 = [[x + y for x in ['a', 'b', 'c']] for y in ['1', '2', '3']] which option is true? Select one: A. len(list1)> len(list2) B. 'a1' is an element (or subelement) for list1 whereas '1a' is for list2 C. list1 and list2 will error because numbers and letters cannot be added. D. Both A and B are true.
PYTHON Complete the function below, which takes two arguments: data: a list of tweets search_words: a list of search phrases The function should, for each tweet in data, check whether that tweet uses any of the words in the list search_words. If it does, we keep the tweet. If it does not, we ignore the tweet. data = ['ZOOM earnings for Q1 are up 5%', 'Subscriptions at ZOOM have risen to all-time highs, boosting sales', "Got a new Mazda, ZOOM ZOOM Y'ALL!", 'I hate getting up at 8am FOR A STUPID ZOOM MEETING', 'ZOOM execs hint at a decline in earnings following a capital expansion program'] Hint: Consider the example_function below. It takes a list of numbers in numbers and keeps only those that appear in search_numbers. def example_function(numbers, search_numbers): keep = [] for number in numbers: if number in search_numbers(): keep.append(number) return keep def search_words(data, search_words):
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…
Use the function design recipe to develop a function named count_odds. The function takes a list of integers, which may be empty. The function returns the number of odd integers in the list.
Please show all of your workWrite and test the following function: def list_subtract(minuend, subtrahend): """ ------------------------------------------------------- Alters the contents of minuend so that it does not contain any values in subtrahend. i.e. the values in the first list that appear in the second list are removed from the first list. Use: list_subtract(minuend, subtrahend) ------------------------------------------------------- Parameters: minuend - a list of values (list) subtrahend - a list of values to not include in difference (list) Returns: None ------------------------------------------------------ """ Add the function to a PyDev module named functions.py. Test it from t01.py. Hint: you may use find_indexes in the function to solve the problem. The function does not ask for input and does no printing - that is done by your test program. Sample execution: list_subtract([5, 5, 4, 5], [5]) -> None minuend after: [4] Test the function with three different sets of…