Question

in C language we need to find the following :

EXERCISE 3: 1. Write the definition of a structure named employee that contains character array members for an employee's first and last names, an int member for the employee's age, a char member that contains 'M' or 'F' for the employee's gender, and a double member for the employee's hourly salary. 2. Using the above mentioned definition, write a C program that asks a user to enter the values of 20 employees and save them in an array. Hint: To define an array that contains 20 elements of type 'struct employee', you just need to write: struct employee employees [20]; 3. Modify your program to include a function which prints all the content of the employees array. The array of all employees acts as input and there is no return type of this function. 4. Modify your program to include a function which calculates the average salary of all employees. The function takes as input the array of all employees and returns the average salary as float value. 5. Modify you program to include a function that take the array of all employees as input and return the employee record with the youngest age. If there is more than one employee with the same youngest age, the program should return one of them.

Answer 1

Here is the required code in C programming language :

I have uploaded the code in repl.it for your reference in case there comes some build issue in your IDE or compiler.

Link for repl.it : https://repl.it/@maximusR9000/Chegg-Employee-In-C-Programming-Langauge

##NOTE :

I have used fgets instead of scanf because scanf is not so good when it comes to implementing real-world problems.

If all the input was taken with the help of scanf then an unusual behavior will occur such as some input was skipped. Because of this behavior scanf is not preferred.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define size 20

struct employee{
   char firstName[20];
   char lastName[20];
   int age;
   double hourSalary;
   char gender;
};

void displayEmployees(struct employee *emp){
   for(int i = 0; i < size; i++){
       printf("Name: %s %s Gender: %c Age: %d Hourly Salary: %lf\n", emp[i].firstName, emp[i].lastName, emp[i].gender, emp[i].age, emp[i].hourSalary);
   }
}

double calculateAverage(struct employee *emp){
   double avg = 0;
   for(int i = 0; i < size; i++)
       avg += emp[i].hourSalary;

   return (double)(avg / size);
}

struct employee getYoungEmployee(struct employee *emp){
   int min = 0;
   for(int i = 1; i < size; i++)
       if(emp[i].age < emp[min].age)
           min = i;

   return emp[min];
}

void setData(struct employee emp){

   char str_age[4], str_gen[4], str_salary[100], str_fname[20], str_lname[20];

   printf("Enter first name: ");
   fgets(str_fname, 20, stdin);
   str_fname[strlen(str_fname) - 1] = '\0';
   strcpy(emp.firstName, str_fname);

   printf("Enter last name: ");
   fgets(str_lname, 20, stdin);
   str_lname[strlen(str_lname) - 1] = '\0';
   strcpy(emp.lastName, str_lname);

   printf("Enter gender: ");
   fgets(str_gen, 4, stdin);
   emp.gender = str_gen[0];

   printf("Enter age: ");
   fgets(str_age, 4, stdin);
   emp.age = strtol(str_age, NULL, 0);

   printf("Enter hourly salary: ");
   fgets(str_salary, 100, stdin);
   emp.hourSalary = strtof(str_salary, NULL);
}

int main() {
   struct employee employees[size]; // Since size = 20

   //Asks user to enter the value of 20 employees
   for(int i = 0; i < size; i++){
       setData(employees[i]);
   }

   displayEmployees(employees);

   printf("\nYoung Employee: \n");
   struct employee youngestEmployee = getYoungEmployee(employees);
   printf("Name: %s %s Gender: %c Age: %d Hourly Salary: %lf\n", youngestEmployee.firstName, youngestEmployee.lastName, youngestEmployee.gender, youngestEmployee.age, youngestEmployee.hourSalary);

   printf("Average Salary: %lf", calculateAverage(employees));

   return 0;
}

#########################

I have tested the code with 2 employee details works perfectly

Here is the result of my testing............

https://Chegg-Employee-In-C-Programming-Langauge.maximusr 9000.repl.run K ? clang-7 -pthread -lm -o main main.c > ./main Enter first name: Satyajeet Enter last name: Mahato Enter gender: M Enter age: 21 Enter hourly salary: 160 Enter first name: Abhishek Enter last name: Sharma Enter gender: M Enter age: 22 Enter hourly salary: 170 Name: Satyajeet Mahato Gender: M Age: 21 Hourly Salary: 160.000000 Name: Abhishek Sharma Gender: M Age: 22 Hourly Salary: 170.000000 Young Employee: Name: Satyajeet Mahato Gender: M Age: 21 Hourly Salary: 160.000000