Example#include // include io libraryusing namespace std;int main(){ // Begin main functionint cookieCost = 1; // cost of 1 cookieint numCookiesPurchased;double subtotal;cout << "Number of Cookies? "; // promptcin >> numCookiesPurchased; // read from keyboardsubtotal = numCookiesPurchased * cookieCost;cout << "Cookies: ";cout << numCookiesPurchased << " at $";cout << cookieCost << " each " << endl;cout << "Subtotal = $" << subtotal << endl;return 0; // end program} // End main functionUsing this above example:Create a tax rate variable if tax is: .05 (not 5%)What type should it be?What is a good name?• Read in the tax rateCalculate & print the taxPrint the total

Explanation-Create variables named tax_rate, tax and total for the code.Declare the variables as…

Answered: Example #include // include io library…

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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C++ complete magic Square #include <iostream> using namespace std; /*int f( int x, int y, int* p, int* q ){if ( y == 0 ){p = 0, q = 0;return 404; // status: Error 404}*p = x * y; // product*q = x / y; // quotient return 200; // status: OK 200} int main(){int p, q;int status = f(10, 2, &p, &q);if ( status == 404 ){cout << "[ERR] / by zero!" << endl;return 0;}cout << p << endl;cout << q << endl; return 0;}*/ /*struct F_Return{int p;int q;int status;}; F_Return f( int x, int y ){F_Return r;if ( y == 0 ){r.p = 0, r.q = 0;r.status = 404;return r;}r.p = x * y;r.q = x / y;r.status = 200;return r;} int main(){F_Return r = f(10, 0);if ( r.status == 404 ){cout << "[ERR] / by zero" << endl;return 0;}cout << r.p << endl;cout << r.q << endl;return 0;}*/ int sumByRow(int *m, int nrow, int ncol, int row){ int total = 0;for ( int j = 0; j < ncol; j++ ){total += m[row * ncol + j]; //m[row][j];}return total; } /*…
C++ This program does not compile! Spot the error and give the line number. Presume that the header file is error free and // Implementation file for the Rectangle class.1. #include "Rectangle.h" // Needed for the Rectangle class2. #include <iostream> // Needed for cout3. #include <cstdlib> // Needed for the exit function4. using namespace std; //***********************************************************// setWidth sets the value of the member variable width. *//*********************************************************** 5. void Rectangle::setWidth(double w){6. if (w >= 0)7. width = w;8. else{9. cout << "Invalid width\n";10. exit(EXIT_FAILURE);}} //***********************************************************// setLength sets the value of the member variable length. *//*********************************************************** 11. void Rectangle::setLength(double len){12. if (len >= 0)13. length = len;14. else{15. cout << "Invalid length\n";16.…
C++ CODERS!Please complete the lost password function and the sign in account function. Will rate, thank you! //Accounts class detail#include <iostream>using namespace std;#include <fstream> class Accounts{private:char first_Name[40];char last_Name[40];int std_id;int std_age;int std_major;int user_input;public://gathering info of studentvoid getStd(void);//display info o studentvoid display_std(void);void Title(void);void Menu(void);void new_Account(void);void sign_in_Account(void);void lost_password(void);};void Accounts::getStd(void) {cout<<"Enter the student information"<<endl;cout<<"Accounts name: ";cin>>first_Name;cout<<"Accounts ID: ";cin>>std_id;cout<<"Accounts Age: ";cin>>std_age;cout<<"Accounts Major: ";cin>>std_major;}void Accounts::display_std(void) {cout<<"The Accounts information"<<endl;cout<<"Name: "<<first_Name<<endl;cout<<"ID:…
C++ Find the errors in the code for Date Class and Source.cpp program and fix them. source.cpp include <iostream>#include "Date.h" // include definition of class Date from Date.h using namespace std; // function main begins program executionint main(){Date date(); // create a Date object for May 6, 1981 // display the values of the three Date data members cout << "Month: " << date.getMonth() << endl;cout « "Day: " << date.getDay() << endl;cout << "Year: " << date.getYear(2017) << endl; cout << "\nOriginal date:" << endl;date = displayDate(); // output the Date// modify the Date setMonth(13);setDay(1);setYear(2005); cout "\nNew date:" << endl;date.displayDate(); // output the modified date } // end main Date.h // class Data definition#include <iostream>using namespace std; //Data constructor that initializes the three data members;class Date{publicdate(m, d, y){setMonth();setDay();setYear();};// set monthvoid…
#include <iostream>#include <iomanip>#include <cmath>using namespace std; #define PROPERTY_TAX_RATE_PER_YEAR 1.25#define COST_OF_UTILITIES_PER_MONTH 300.00#define COST_OF_INSURANCE_PER_YEAR 550.00 void inputData(double& sellingPrice, double& interestRate, int& durationOfLoan); void handleAllComputations(double sellingPrice,double interestRate,int durationOfLoan,double downPaymentRate,double& downPayment,double& amountOfLoan,double& mortgagePayment,double& propertyTax,double& costOfInsurance,double& totalMonthlyHouseCost); double calculateDownPayment(double sellingPrice, double downPaymentRate);double calculateAmountOfLoan(double sellingPrice, double downPayment);double calculateMortgagePayment(double amountOfLoan,double interestRate,int durationOfLoan); void outputResults(double sellingPrice,double downPayment,double amountOfLoan,double interestRate,int durationOfLoan,double mortgagePayment,double propertyTax,double…
here is a and b part plz solve c part #include <iostream>#include <string.h>#include <stdlib.h>#include <sstream>#include <cmath>using namespace std; int main(){ /*Variable declarations*/int higestDegree,higestDegree1;int diffDegree,smallDegree;std::stringstream polynomial,addpolynomial;/*prompt for degree*/std::cout<<"Please enter higest degree of polynomial"<<std::endl;std::cin>>higestDegree; std::cout<<"Please Enter highest degree of 2nd polynomial"<<std::endl;std::cin>>higestDegree1;int *cofficient=new int[higestDegree+1];//cofficient array creation for 1st polynomailint *cofficient1=new int[higestDegree1+1];//cofficient array creation for 2st polynomail /*taking cofficient for 1st polynomial*/std::cout<<"Please enter cofficient of each term from higest degree to lowest for 1st polynomial"<<std::endl;for(int i=0;i<=higestDegree;i++){std::cin>>cofficient[i];}/*taking cofficient for 2st…
fix the code
Consider the producer-consumer problem where the producer produces items to be consumed by the consumer. A solution of the problem is to be implemented using threads. The main process will run producer and consumer as two different threads. The producer will put the items it generates into a buffer of length 15. The consumer reads the elements of the buffer to get the items. A solution is given below. Each item produced and consumed are also printed to the screen. Run the program several times and find a sample run when the items produced are not correctly consumed. Explain why the program does not always work correctly.
main.cpp 1 #include 2 using namespace std; 3 4 int main() 5- { int a,b; cin>>a>>b; int i = a; int total 7 8 9. 0; %3D 10 11 i++; 12 13 cout<
Find the error. Write the correct statement
Predict the Output #include <iostream> #include <cstring> using namespace std; int main(){cout << strcmp("a", "b"); return 0;}
## Q3. Finding the largest number from three numbers. **C++ #include using namespace std; int findLargest3(int a, int b, int c) { int largest; // Put your code here return largest; int main() { int a, b, c; cout > a; cin >> b; cin >> c; cout << "The largest number is " <« fingLargest3(a, b, c) « endl; return 1; *Hint 1: Considering the case that the two or three numbers are equal.*

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