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Computer Science

are spaces that appear at the beginning of a string

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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// MovieGuide.cpp - This program allows each theater patron to enter a value from 0 to 4 // indicating the number of stars that the patron awards to the Guide's featured movie of the // week. The program executes continuously until the theater manager enters a negative number to // quit. At the end of the program, the average star rating for the movie is displayed. #include <iostream> #include <string> using namespace std; int main() { // Declare and initialize variables. double numStars; // star rating. double averageStars; // average star rating. double totalStars = 0; // total of star ratings. int numPatrons = 0; // keep track of number of patrons // This is the work done in the housekeeping() function // Get input. cout << "Enter rating for featured movie: "; cin >> numStars; // This is the work done in the detailLoop() function // Write while loop here //…
The __________ of a string object allow you to search for substrings. a. TrimStart and TrimEnd methods b. IndexOf and LastIndexOf methods c. IsWhiteSpace and IsPunctuation methods d. Contains, StartsWith, and EndsWith methods
Question #1: Covld Vaccine Program (6 pts) In this question, you are asked to write a program to understand natural language. The user will enter the input following the format: FirstNome LostNome@Number18Number2 For example: Robin_Morin@182 Assume a perfect user will follow the exactly above formats for the inputs. Your program should be able to analyze the key words (Name, Numberi and Number2) from the inputs and display the outputs in the following format. You must use if-else statement to display the correct place. LastName, FirstName has completed Number2 dosefs) of Covid 19 vaccine at Place. If the Number2 lis less than 3, your program should also display the folowing message: Please complete the remaining N dosefs) soon. Take carel If the Numberi is not listed in the table or Not Available, your program should ask user for a new input. N=3- Number2 "Here is a list of Place that your program should display according to the input Numberi. Number1 Place Numberi Place 1 Pharmacy…
____ are declared within the body of a function. (A) Variables (B) Local variables (C) Main functions (D) Arrays
Cost Table The items and costs are stored in two (constant) lists: ITEMS and PRICES. ITEMS = ["Beans", "Rice", "Banana", "Ice", "Tea", "Bread", "Orange", "Sugar"] PRICES = [3.25, 4.31, 6.88, 3.3, 5.25, 4.89, 6.32, 2.25] You should implement the following functions to print a cost table. • make_cost_table(). Called by the main() function, this function will prompt the user for the maximum quantity (between 1 and 9 inclusive), and the orientation of the table (item\gty as horizontal). It will handle the user input error. Once valid values are obtained from the user, this function will call the next function to build the string that contains the formatted cost table, and return it. • build_cost_table(items, prices, max_gty, horizontal). This function will build and return a string that represents the cost table by listing for each item the cost of buying that item for a quantity from 1 to the max_gty. If horizontal is True, each row is for one item and each column is for each quantity,…
7- ______ is the alternate of sizeof(); function. a. strtolower(); b. strtoupper(); c. isset(); d. count();
Driving costs - functions Learning Objectives Create a function to match the specifications Use floating-point value division Instructions Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles. Output each floating-point value with two digits after the decimal point, which can be achieved as follows: print(f'{your_value:.2f}') Ex: If the input to your program is: 20.0 3.1599 the output is: The gas cost for 10 miles is $1.58 The gas cost for 50 miles is $7.90 The gas cost for 400 miles is $63.20 Your program must define and call the driving_cost() function. Given input parameters driven_miles, miles_per_gallon, and dollars_per_gallon, the function returns the dollar cost to drive those miles. Ex: If the function is called with: 50 20.0 3.1599 the function returns: 7.89975 def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon) Your program should…
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Create pseudocode for the following #include <iostream> #include <string> #include <cstdlib> #include <ctime> using namespace std; char water[10][10] = {{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'},{'~','~','~','~','~','~','~','~','~','~'}}; void createBoard(int &numShip); void promptCoords(int& userX, int &userY); void shipGen(int shipX[] ,int shipY[], int &numShip); void testCoords(int &userX, int &userY, int shipX[], int shipY[], int &numShip, int& victory); void updateBoard();
You use an escape sequence to include ___________________ in a string.
// EmployeeBonus.cpp - This program calculates an employee's yearly bonus. #include <iostream> #include <string> using namespace std; int main() { // Declare and initialize variables here string employeeFirstName; string employeeLastName; double numTransactions; double numShifts; double dollarValue; double score; double bonus; const double BONUS_1 = 50.00; const double BONUS_2 = 75.00; const double BONUS_3 = 100.00; const double BONUS_4 = 200.00; // This is the work done in the housekeeping() function cout << "Enter employee's first name: "; cin >> employeeFirstName; cout << "Enter employee's last name: "; cin >> employeeLastName; cout << "Enter number of shifts: "; cin >> numShifts; cout << "Enter number of transactions: "; cin >> numTransactions; cout << "Enter dollar value of transactions: "; cin >> dollarValue; // This is…