Python Practice Queue Linked List || Lesson 26 || Python Placements || Learning Monkey ||

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Python Practice Queue Linked List
In this class, we make Python Practice Queue Linked List.
Queue Example
# What will be returned by the following function check_num when the number passed is 125?
Queue class is provided with methods required

def check_num(number):
queue=Queue(5)
outpu=0
out_queue=Queue(5)
Out_queue.enque(1)
while(numbergt0):
queue.enque(number%10)#enque method will insert element in the queue
number//10
while(not queue.isempty()):
val=queue.deque()
output=output+(val*val)
num=out_queue.deque()
if output%2==0:
out_queue.enque(output+num)
else:
out_queue.enque(val+num)
return out_queue

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For Data structure, please check our Data structures course.
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All these examples will help you improve your coding skill and easily crack the placement exams.
In the above program, a queue class is provided, and the methods are written.
The description of methods is provided in the program.
Intuition on how data structures are implemented in python is provided here.
Step by step explanation of the program is given in the video.
Linked List Example
consider the below input_linked_list
input_linked_list(Head to Tail): 'p'-1-'L'-2

What will be the content of input_linked_list
after executing the below function
if input_linked_list and str1='P' are passed as parameters

def modifylinkedlist(input_linked_list,str1):
temp=input_linked_list.gethead() #gethead() will return head node
while(temp.getnext().getnext()!=None): #getnext() return next node
if str1 in temp.getnext().getdata(): #getdata return the data in node
input_linked_list.add(temp.getdata()) # add will add node at end
temp=temp.getnext()
elif (temp.getdata(isdigit())):
input_linked_list.add(temp.getdata())
temp=temp.getnext()
return input_linked_list()

In the above program linked list object is given as input to the function.
We can use the methods available on the linked list and other classes mentioned in the program.
Description About methods is provided in the program.
A complete explanation is provided in the video.


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