#include <stdio.h>
 
// Structure definition
struct Employee {
    int id;
    char name[50];
    float salary;
};
 
// Function Declaration
void displayEmployee(struct Employee e);         // Pass by value
void updateSalary(struct Employee *e, float inc); // Pass by reference
 
int main() {
    struct Employee emp;
 
    // Input employee details
    printf("Enter Employee ID: ");
    scanf("%d", &emp.id);
 
    printf("Enter Employee Name: ");
    scanf(" %[^\n]", emp.name);
 
    printf("Enter Employee Salary: ");
    scanf("%f", &emp.salary);
 
    printf("\n--- Employee Details (Before Increment) ---\n");
    displayEmployee(emp);
 
    // Call function by reference to update salary
    updateSalary(&emp, 5000.0);
 
    printf("\n--- Employee Details (After Increment) ---\n");
    displayEmployee(emp);
 
    return 0;
}
 
// Function Definition: Pass structure by value
void displayEmployee(struct Employee e) {
    printf("ID      : %d\n", e.id);
    printf("Name    : %s\n", e.name);
    printf("Salary  : %.2f\n", e.salary);
}
 
// Function Definition: Pass structure by reference
void updateSalary(struct Employee *e, float inc) {
    e->salary += inc;
}