For the class Employee example provided in tutorial $3\mathrm{.}1\mathrm{.}5,$ what code segments could be added to keep track of the number of salary increases that have occurred for an employee?

def $\_\_$init$\_\_($self$,$ fname, lname$,$ empid, title, sal$)$:

salaryincreases$=0$

def increase$\_$salary$($self$,$percent$)$:

if percent $>0$:

set$\_$salary$($self$.$salary $+$ self.salary $*$ percent$)$

salaryincreases$+=1$

else:

print$("$Increase of salary must be greater than $0.")$

def get$\_$salary$\_$increases$($self$)$:

return salaryincreases

def $\_\_$init$\_\_($fname$,$ lname$,$ empid, title, sal$)$:

self.salaryincreases$=0$

def increase$\_$salary$($percent$)$:

if percent $>0$:

self.set$\_$salary$($salary $+$ self.salary $*$ percent$)$

self.salaryincreases$+=1$

else:

print$("$Increase of salary must be greater than $0.")$

def get$\_$salary$\_$increases$()$:

return self.salaryincreases

def $\_\_$init$\_\_($self$,$ fname, lname$,$ empid, title, sal$)$:

self.salaryincreases$=0$

def increase$\_$salary$($self$,$percent$)$:

if percent $>0$:

self.set$\_$salary$($self$.$salary $+$ self.salary $*$ percent$)$

self.salaryincreases$+=1$

else:

print$("$Increase of salary must be greater than $0.")$

def get$\_$salary$\_$increases$($self$)$:

return self.salaryincreases

def $\_\_$init$\_\_($fname$,$ lname$,$ empid, title, sal$)$:

salaryincreases$=0$

def increase$\_$salary$($percent$)$:

if percent $>0$:

self.set$\_$salary$($salary $+$ salary $*$ percent$)$

salaryincreases$+=1$

else:

print$("$Increase of salary must be greater than $0.")$

def get$\_$salary$\_$increases$()$:

return salaryincreases