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  1. //Amari Mosley CSC5 Chapter 6, P. 371, #12
  2. //
  3. /*****************************************************************
  4.  *
  5.  * Calculate Days Out 
  6.  * _______________________________________________________________
  7.  * This program calculates the average number of days a company's
  8.  * employees were absent during the past year.
  9.  *
  10.  * Computation is based on the formula:
  11.  *   average = totalDays / numEmployees
  12.  * _______________________________________________________________
  13.  * INPUT
  14.  *   numEmployees : number of employees 
  15.  *   daysMissed   : days each employee missed 
  16.  *
  17.  * OUTPUT
  18.  *   average      : average number of days absent per employee
  19.  *
  20.  *****************************************************************/
  21. #include <iostream>
  22. #include <iomanip>
  23. using namespace std;
  24.  
  25. // Function prototypes
  26. int getNumEmployees();
  27. int getTotalDays(int numEmployees);
  28. double calcAverage(int numEmployees, int totalDays);
  29.  
  30. int main()
  31. {
  32.     int numEmployees;   // number of employees
  33.     int totalDays;      // total days absent for all employees
  34.     double average;     // average days absent per employee
  35.  
  36.     // Get the number of employees
  37.     numEmployees = getNumEmployees();
  38.  
  39.     // Get the total days absent
  40.     totalDays = getTotalDays(numEmployees);
  41.  
  42.     // Calculate the average
  43.     average = calcAverage(numEmployees, totalDays);
  44.  
  45.     // Display the result
  46.     cout << fixed << setprecision(2);
  47.     cout << "\nThe average number of days absent per employee is "
  48.          << average << endl;
  49.  
  50.     return 0;
  51. }
  52.  
  53.  
  54.  // getNumEmployees
  55.  //   Asks the user for the number of employees, validates the
  56.  //   input (must be at least 1), and returns it as an int.
  57.  
  58. int getNumEmployees()
  59. {
  60.     int numEmployees;
  61.  
  62.     cout << "Enter the number of employees in the company: ";
  63.     cin >> numEmployees;
  64.  
  65.     // Input validation: no number less than 1
  66.     while (numEmployees < 1)
  67.     {
  68.         cout << "The number of employees must be at least 1. "
  69.              << "Please re-enter: ";
  70.         cin >> numEmployees;
  71.     }
  72.  
  73.     return numEmployees;
  74. }
  75.  
  76.  
  77.   //getTotalDays
  78.   //  Receives the number of employees, asks for the days each
  79.   //  employee missed, validates the input (must not be negative),
  80.   //  and returns the total days absent as an int.
  81.  
  82. int getTotalDays(int numEmployees)
  83. {
  84.     int total = 0;   // accumulator
  85.     int days;        // days missed by one employee
  86.  
  87.     for (int count = 1; count <= numEmployees; count++)
  88.     {
  89.         cout << "Enter the days missed by employee #" << count << ": ";
  90.         cin >> days;
  91.  
  92.         // Input validation: no negative days
  93.         while (days < 0)
  94.         {
  95.             cout << "Days missed cannot be negative. Please re-enter: ";
  96.             cin >> days;
  97.         }
  98.  
  99.         total += days;
  100.     }
  101.  
  102.     return total;
  103. }
  104.  
  105.  
  106.  // calcAverage
  107.  //   Receives the number of employees and the total days absent
  108.  //   and returns the average days absent as a double.
  109.  //   (No screen output and no user input in this function.)
  110.  
  111. double calcAverage(int numEmployees, int totalDays)
  112. {
  113.     return static_cast<double>(totalDays) / numEmployees;
  114. }
Success #stdin #stdout 0s 5328KB
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Enter the number of employees in the company: Enter the days missed by employee #1: Enter the days missed by employee #2: Enter the days missed by employee #3: 
The average number of days absent per employee is 3.00
https://ideone.com/BLsghb
CH 6. #12
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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