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  1. //********************************************************
  2. //
  3. // Assignment 5 - Functions
  4. //
  5. // Name: Carlos Dominguez
  6. //
  7. // Class: C Programming, Spring 2026
  8. //
  9. // Date: 03/01/2026 
  10. //
  11. // Description: Program which determines overtime and 
  12. // gross pay for a set of employees with outputs sent 
  13. // to standard output (the screen).
  14. //
  15. // All functions are called by value
  16. //
  17. //********************************************************
  18.  
  19. #include <stdio.h>
  20.  
  21. // constants
  22. #define SIZE 5
  23. #define OVERTIME_RATE 1.5f
  24. #define STD_WORK_WEEK 40.0f
  25.  
  26. // function prototypes
  27. float getHours (long int clockNumber); 
  28. void  printHeader (void);
  29. void  printEmp  (long int clockNumber, float wageRate, float hours,
  30.                  float overtimeHrs, float grossPay);
  31.  
  32. // --- Functions prototypes for overtime, grosspay calculators---
  33. float calcOvertime(float hours);
  34. float calcGrossPay(float wageRate, float hours);
  35.  
  36. // ---summary function prototype ---
  37. // Prints totals and averages for Wage, Hours, OT, and Gross at the end of the table
  38. void  printSummary(const float wageRate[], const float hours[], const float overtimeHrs[],
  39.                    const float grossPay[], int n);
  40.  
  41. int main(void)
  42. {
  43.     /* Variable Declarations */
  44.     long int clockNumber[SIZE] = {98401, 526488, 765349, 34645, 127615}; // Employee unique ID
  45.     float grossPay[SIZE];     // gross pay
  46.     float hours[SIZE];        // hours worked in a given week
  47.     float overtimeHrs[SIZE];  // overtime hours
  48.     float wageRate[SIZE] = {10.60f, 9.75f, 10.50f, 12.25f, 8.35f}; // hourly wage rate
  49.     int i;                    // loop and array index
  50.  
  51.     // process each employee
  52.     for (i = 0; i < SIZE; ++i)
  53.     {
  54.         // Read in hours for employee
  55.         hours[i] = getHours(clockNumber[i]); 
  56.  
  57.         // Calculate overtime hours
  58.         overtimeHrs[i] = calcOvertime(hours[i]);
  59.  
  60.         // Calculate gross pay
  61.         grossPay[i] = calcGrossPay(wageRate[i], hours[i]);
  62.     }
  63.  
  64.     // print the header info
  65.     printHeader();
  66.  
  67.     // print out each employee
  68.     for (i = 0; i < SIZE; ++i)
  69.     {
  70.         // Print all the employees - call by value
  71.         printEmp(clockNumber[i], wageRate[i], hours[i],
  72.                  overtimeHrs[i], grossPay[i]);
  73.     }
  74.  
  75.     // print totals and averages for Wage, Hours, OT, and Gross ---
  76.     printSummary(wageRate, hours, overtimeHrs, grossPay, SIZE);
  77.  
  78.     return 0;
  79. } // main
  80.  
  81. //**************************************************************
  82. // Function: getHours 
  83. // 
  84. // Purpose: Obtains input from user, the number of hours worked 
  85. // per employee and stores the result in a local variable 
  86. // that is passed back to the calling function. 
  87. // 
  88. // Parameters: clockNumber - The unique employee ID
  89. // 
  90. // Returns: hoursWorked - hours worked in a given week
  91. //  
  92. //**************************************************************
  93.  
  94. float getHours (long int clockNumber) 
  95. { 
  96.     float hoursWorked = 0.0f; // hours worked in a given week
  97.  
  98.     // Read in hours for employee
  99.     printf("\nEnter hours worked by employee # %06li: ", clockNumber); 
  100.     scanf("%f", &hoursWorked); 
  101.  
  102.     // return hours back to the calling function
  103.     return hoursWorked;
  104. } // getHours
  105.  
  106. //**************************************************************
  107. // Function: printHeader
  108. // 
  109. // Purpose: Prints the initial table header information.
  110. // 
  111. // Parameters: none
  112. // 
  113. // Returns: void
  114. //  
  115. //**************************************************************
  116.  
  117. void printHeader (void) 
  118. { 
  119.     printf("\n\n*** Pay Calculator ***\n");
  120.     printf("\nClock#   Wage    Hours    OT       Gross\n");
  121.     printf("-----------------------------------------------\n");
  122. } // printHeader
  123.  
  124. //************************************************************* 
  125. // Function: printEmp 
  126. // 
  127. // Purpose: Prints out all the information for an employee
  128. // in a nice and orderly table format.
  129. // 
  130. // Parameters: 
  131. //     clockNumber - unique employee ID
  132. //     wageRate    - hourly wage rate
  133. //     hours       - hours worked for the week
  134. //     overtimeHrs - overtime hours worked in a week
  135. //     grossPay    - gross pay for the week
  136. // 
  137. // Returns: void
  138. //  
  139. //**************************************************************
  140.  
  141. void printEmp (long int clockNumber, float wageRate, float hours,
  142.                float overtimeHrs, float grossPay)
  143. {
  144.     // Print one row with neat alignment:
  145.     // Clock# as 6 digits with leading zeros
  146.     // Wage shown with 2 decimals
  147.     // Hours and OT with 2 decimals
  148.     // Gross with 2 decimals
  149.     printf("%06li  %6.2f   %6.2f  %6.2f   %8.2f\n",
  150.            clockNumber, wageRate, hours, overtimeHrs, grossPay);
  151. } // printEmp
  152.  
  153. //**************************************************************
  154. // Function: calcOvertime
  155. // 
  156. // Purpose: Computes overtime hours (> 40 hours).
  157. // 
  158. // Parameters:
  159. //     hours - hours worked for the week
  160. // 
  161. // Returns: overtime hours (0 if hours <= 40)
  162. //  
  163. //**************************************************************
  164.  
  165. float calcOvertime(float hours)
  166. {
  167.     if (hours > STD_WORK_WEEK)
  168.         return hours - STD_WORK_WEEK;
  169.     else
  170.         return 0.0f;
  171. } // calcOvertime
  172.  
  173. //**************************************************************
  174. // Function: calcGrossPay
  175. // 
  176. // Purpose: Computes gross pay given wage rate and hours,
  177. // applying time-and-a-half for hours beyond 40.
  178. // 
  179. // Parameters:
  180. //     wageRate - hourly wage rate
  181. //     hours    - hours worked for the week
  182. // 
  183. // Returns: gross pay for the week
  184. //  
  185. //**************************************************************
  186.  
  187. float calcGrossPay(float wageRate, float hours)
  188. {
  189.     if (hours <= STD_WORK_WEEK)
  190.     {
  191.         return wageRate * hours;
  192.     }
  193.     else
  194.     {
  195.         float overtime = hours - STD_WORK_WEEK;
  196.         float regularPay = wageRate * STD_WORK_WEEK;
  197.         float overtimePay = wageRate * OVERTIME_RATE * overtime;
  198.         return regularPay + overtimePay;
  199.     }
  200. } // calcGrossPay
  201.  
  202. //**************************************************************
  203. // Function: printSummary
  204. // 
  205. // Purpose: Prints totals and averages for Wage, Hours, OT, and Gross,
  206. // aligned with the existing table columns.
  207. // 
  208. // Parameters:
  209. //     wageRate[]    - array of hourly wage rates
  210. //     hours[]       - array of weekly hours
  211. //     overtimeHrs[] - array of weekly overtime hours
  212. //     grossPay[]    - array of weekly gross pay
  213. //     n             - number of employees
  214. // 
  215. // Returns: void
  216. //  
  217. //**************************************************************
  218.  
  219. void printSummary(const float wageRate[], const float hours[], const float overtimeHrs[],
  220.                   const float grossPay[], int n)
  221. {
  222.     float totalWage  = 0.0f; // sum of wage rates (note: rate, not pay)
  223.     float totalHours = 0.0f; // total hours for all employees
  224.     float totalOT    = 0.0f; // total overtime hours for all employees
  225.     float totalGross = 0.0f; // total gross pay for all employees
  226.  
  227.     // Accumulate totals across all employees
  228.     for (int i = 0; i < n; ++i) {
  229.         totalWage  += wageRate[i];
  230.         totalHours += hours[i];
  231.         totalOT    += overtimeHrs[i];
  232.         totalGross += grossPay[i];
  233.     }
  234.  
  235.     // Divider under the employee rows
  236.     printf("-----------------------------------------------\n");
  237.  
  238.     // Print totals
  239.     printf("Totals:  %6.2f   %6.2f  %6.2f   %8.2f\n",
  240.            totalWage, totalHours, totalOT, totalGross);
  241.  
  242.     // Print averages
  243.     printf("Averages:%6.2f   %6.2f  %6.2f   %8.2f\n",
  244.            totalWage / n, totalHours / n, totalOT / n, totalGross / n);
  245. } // printSummary
Success #stdin #stdout 0s 5308KB
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Enter hours worked by employee # 098401: 
Enter hours worked by employee # 526488: 
Enter hours worked by employee # 765349: 
Enter hours worked by employee # 034645: 
Enter hours worked by employee # 127615: 

*** Pay Calculator ***

Clock#   Wage    Hours    OT       Gross
-----------------------------------------------
098401   10.60    51.00   11.00     598.90
526488    9.75    42.50    2.50     426.56
765349   10.50    37.00    0.00     388.50
034645   12.25    45.00    5.00     581.88
127615    8.35     0.00    0.00       0.00
-----------------------------------------------
Totals:   51.45   175.50   18.50    1995.84
Averages: 10.29    35.10    3.70     399.17
https://ideone.com/qUvYqM
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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