Mr. Zack Sullivan loves programming. He joined an institute for learning. He is learning python. He learned all the python concepts like strings, lists, tuple , dictionaries etc. but he wants to learn file handling in python. He is trying to learn binary file handling. His teacher gave him partial code to write and read data from employee.dat having structure empno, name, salary. Help Zack to complete the code:

___________________ # statement 1

def addrecords():

fw= _____________ #statement 2

dict={}

ch=’y’

while ch==’y’:

eno=int(input(“enter employee number”))

nm= input(“enter employee name”)

sal=int(input(“enter employee salary”))

dict={‘empno’:eno,’name’:nm,’salary’:sal}

____________________ # statement 3

ch=input(“add more record”)

fw.close()

# function to diplay records

def display():

dict={}

fr= _____________ # statement 4

dict=____________ # statement 5

fr.close()

print(“data :”,dict)