public void CalculateSalaries(dynamic[] employees)
{
foreach (var employee in employees)
{
if (employee is Ceo)
{
Ceo ceo = (Ceo)employee;
ceo.CalculateSalary();
}
else if (employee is Programmer)
{
Programmer programmer = (Programmer)employee;
programmer.CalculateSalary();
}
}
}