Problem $2$ is from the textbook exercise $3\mathrm{.}11.$

$3\mathrm{.}11($ EmpLoyee Class$)$ Create a class called Employee that includes three pieces of information as data members$$a first name $($type string$),$ a last name $($type string$)$ and a monthly salary $($type int$).$ Your class should have a constructor that initializes the three data members. Provide a set and a get function for each data member. If the monthly salary is not positive, set it to

$0.$ Write a test program that demonstrates class Employee's capabilities.

Create two Employee objects and display each object's yearly salary. Then give each Employee a $10$ percent raise and display each Employee's yearly salary again.

Task $2\mathrm{.}1$ add the copy constructor of class Employee. $(10$ points$)$

Task $2\mathrm{.}2$ add the destructor of class Employee. $(10$ points$)$

Task $2\mathrm{.}3$ address the requirements in the $3\mathrm{.}11$ and Task $2\mathrm{.}1$ and $2\mathrm{.}2.$ The test program should follow the unit testing structure introduced at the lecture demos. $($A reference example is on the "Summary and reference" web page on Moodle.$)(20$ points$)$

Checking the $$if the monthly salary is positive or not and setting the value to zero$$ can follow the example of class Time in the lecture:

void Time::setTime$($ int h$,$ int m$,$ int s $)$

hour $=($h $>=088$ h $<24)?$ h: $0$;

minute $=($m $>=08$& m $<60)?$ m : $0$;

second $=($s $>=0$ && s $<60)?5$: $0$;

$\}//$ end function setTime

Use member initialization list to program the constructor with three parameters.

Task $2\mathrm{.}4$ Write a new test function called int testMinimalEmployeeSalary$().$ Create an array of Employee objects with minimal $10$ objects with different salary values. This function returns the minimal salary value among all the Employee objects. The main$()$ function should invoke testMinimalEmployeeSalary$()$ in an assert form to print out if the test passes or fails. $(20$ points$)$