Working employee

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

  /* structure to store employee salary details */
  struct employee {
        int empId;
        char name[32];
        int basic, bonus;
        int absent, salaryDeduc;
        float gross, net;
  };

  /* prints payslip for the requested employee */
  void printSalary(struct employee e1) {
        printf("Salary Slip of %s:\n", e1.name);
        printf("Employee ID: %d\n", e1.empId);
        printf("Basic Salary: %d\n", e1.basic);
        printf("Bonus: %d\n", e1.bonus);
        printf("Gross Salary: %.2f PHP\n", e1.gross);

        printf("\nDeductions: \n");
        printf("Absent: %d\n", e1.absent);
        printf("Salary Deduction: %d\n", e1.salaryDeduc);
        printf("\nNet Salary: %.2f PHP\n\n", e1.net);
        return;
  }

  /* display all the employee records entered */
  void display(struct employee e1) {
        printf("%d \t %s \t %d \t %d \t %d \n", e1.empId, e1.name, e1.basic, e1.bonus, e1.absent);
        return;
  }

  int main() {
        int i, ch, num, flag, empID;
        int choice;
        struct employee *e1;

        /* get the number of employees from the user  */
        printf("Enter the number of employees:");
        scanf("%d", &num);

        /* dynamically allocate memory to store employee salary details */
        e1 = (struct employee *)malloc(sizeof(struct employee) * num);

        /* get the employee salary details from the customer */
        printf("Enter your input for every employee:\n");
        for (i = 0; i < num; i++) {
                printf("Employee ID:");
                scanf("%d", &(e1[i].empId));
                getchar();
                printf("Employee Name:");
                fgets(e1[i].name, 32, stdin);
                e1[i].name[strlen(e1[i].name) - 1] = '\0';
                printf("Basic Salary:");
                scanf("%d", &(e1[i].basic));
                printf("Bonus:");
                scanf("%d", &(e1[i].bonus));
                printf("Enter the deductions: \n");
                printf("Absent:");
                scanf("%d", &(e1[i].absent));
                printf("\n");
        }
        /* printing payslip for the given employee ID */
        while (1) {
                printf("\n   EMPLOYEE PAYROLL SYSTEM \n");
                printf("\n\n*****CHOOSE YOUR OPTION*****\n");
                printf("1) SHOW ALL RECORDS\n");
                printf("2) ADD NEW EMPLOYEE RECORD\n");
                printf("3) PRINT THE SALARY SLIP\n");
                printf("4) EXIT\n");
                printf("Enter your choice : ");
                scanf("%d", &choice);

                if (choice != 5) {
                switch(choice){
                        case 1 : /*printing all the records entered before printing the slip */
                                        printf("\nEmp. ID. Emp.Name \t Basic \t Bonus \t Absent \n") ;

                                        for (i = 0; i < num; i++) {
                                                display(e1[i]);
                                        }
                                        break;

                        case 2 : /*adding a new member in the employee list created */
                                        num++;
                                        i = num-1;
                                        printf("Employee ID:");
                                        scanf("%d", &(e1[i].empId));
                                        getchar();
                                        printf("Employee Name:");
                                        fgets(e1[i].name, 32, stdin);
                                        e1[i].name[strlen(e1[i].name) - 1] = '\0';
                                        printf("Basic Salary:");
                                        scanf("%d", &(e1[i].basic));
                                        printf("Bonus:");
                                        scanf("%d", &(e1[i].bonus));
                                        printf("Enter the deductions:\n");
                                        printf("Absent:");
                                        scanf("%d", &(e1[i].absent));
                                        printf("\n");
                                        break;

                        case 3 :        /* gross and net salary calculation */
                                        for (i = 0; i < num; i++) {
                                            e1[i].gross = e1[i].basic + e1[i].bonus;
                                            e1[i].salaryDeduc = (0.04 * e1[i].absent) * e1[i].basic;
                                            e1[i].net = e1[i].gross - e1[i].salaryDeduc;
                                        }

                                        printf("Enter employee ID to get payslip:");
                                        scanf("%d", &empID);

                                        flag = 0;
                                        for (i = 0; i < num; i++) {
                                                if (empID == e1[i].empId) {
                                                        printSalary(e1[i]);
                                                        flag = 1;
                                                }
                                        }

                                        if (!flag) {
                                                printf("No Record Found!!\n");
                                        }
                                        break;
                        case 4 : //printf("5");
                                 break;

                        default: printf("error");
                }

                printf("\n Do You Want To Continue(1/0):");
                scanf("%d", &ch);

                } else {
                        ch = 0;
                }

                if (!ch) {
                        break;
                }
        }
        return 0;
  }