Question

Using the code below (C++), add a struct with only 1 vector

#include
#include
#include // Needed to define vectors
using namespace std;

int main()
{
vector hours; // hours is an empty vector
vector payRate; // payRate is an empty vector
int numEmployees; // The number of employees
int index; // Loop counter

// Get the number of employees.
cout << "How many employees do you have? ";
cin >> numEmployees;

// Input the payroll data.
cout << "Enter the hours worked by " << numEmployees;
cout << " employees and their hourly rates.\n";
for (index = 0; index < numEmployees; index++)
{
int tempHours; // To hold the number of hours entered
double tempRate; // To hold the payrate entered

cout << "Hours worked by employee #" << (index + 1);
cout << ": ";
cin >> tempHours;
hours.push_back(tempHours); // Add an element to hours
cout << "Hourly pay rate for employee #";
cout << (index + 1) << ": ";
cin >> tempRate;
payRate.push_back(tempRate); // Add an element to payRate
}

// Display each employee's gross pay.
cout << "Here is the gross pay for each employee:\n";
cout << fixed << showpoint << setprecision(2);
for (index = 0; index < numEmployees; index++)
{
double grossPay = hours[index] * payRate[index];
cout << "Employee #" << (index + 1);
cout << ": $" << grossPay << endl;
}
return 0;
}

Answer 1

Short Summary:

• Created a struct "Employee" for hours and payRate
• Removed vectors for hours & payRate and used only one vector for struct employee
• Program output still remains same.

Source Code:

#include <iostream>
#include <vector>
#include <iomanip>

using namespace std;

//Struct for hours and payRate
struct Employee
{
int hours;
double payRate;
};

int main()
{
vector<Employee> Employees; //Empty employees vector

int numEmployees; // The number of employees
int index; // Loop counter

// Get the number of employees.
cout << "How many employees do you have? ";
cin >> numEmployees;

// Input the payroll data.
cout << "Enter the hours worked by " << numEmployees;
cout << " employees and their hourly rates.\n";
for (index = 0; index < numEmployees; index++)
{
struct Employee employee; //create a employee
  
int tempHours; // To hold the number of hours entered
double tempRate; // To hold the payrate entered
  
cout << "Hours worked by employee #" << (index + 1);
cout << ": ";
cin >> tempHours;
employee.hours = tempHours; //Assign the hours to struct employee
  
cout << "Hourly pay rate for employee #";
cout << (index + 1) << ": ";
cin >> tempRate;
employee.payRate = tempRate; //Assign the payRate to struct employee
Employees.push_back(employee); //Add the employee to vector
}
  
// Display each employee's gross pay.
cout << "Here is the gross pay for each employee:\n";
cout << fixed << showpoint << setprecision(2);
for (index = 0; index < numEmployees; index++)
{
//retreive Struct Employee by Index
struct Employee employee = Employees[index];
double grossPay = employee.hours * employee.payRate;
cout << "Employee #" << (index + 1);
cout << ": $" << grossPay << endl;
}
return 0;
}

Refer the following screenshots for code indentation:

Sample Output:

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Happy Studying!!