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Lab 07: Linked List: Create A Class Linkedlist and Implement The Singly Linked List Operations in The Following Order

The document provides instructions for Lab 7, which involves implementing linked list, stack, and queue data structures using Python. Students are asked to create LinkedList, Stack, and Queue classes, and implement various functions like insertion, deletion, and traversal for each data structure. The homework is to modify the singly linked list program to instead implement a doubly linked list.

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Mudassir Zia
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145 views4 pages

Lab 07: Linked List: Create A Class Linkedlist and Implement The Singly Linked List Operations in The Following Order

The document provides instructions for Lab 7, which involves implementing linked list, stack, and queue data structures using Python. Students are asked to create LinkedList, Stack, and Queue classes, and implement various functions like insertion, deletion, and traversal for each data structure. The homework is to modify the singly linked list program to instead implement a doubly linked list.

Uploaded by

Mudassir Zia
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Data Structures & Algorithms Fall 2019 Lab # 7

LAB 07: Linked List


CS211 – Data Structures and Algorithms
Usman Insti tute of Technology
Fall 2019

 How to submit:
o Create an account on http://www.turnitin.com/ as a Student (if you don’t have already)
o Use following information at time of sign-up
CS Section A
 Class ID: 22664649
 Enrollment Key: DSFALL19CSA
CS Section B
 Class ID: 22664651
 Enrollment Key: DSFALL19CSB

A. Create a class LinkedList and implement the singly Linked List operations in
the following order.

1. Add a constructor of the class that takes one argument data in order to set the elements
for the List. The constructor should also initialize head and next node pointers
class LinkedList:
def __init__(self,data):
// your code goes here

2. Add a function InsertatFirst() that inserts a value at the beginning of the List.

def InsertatFirst(self,value):
// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)

# The items will be inserted like this:


3
2
Data Structures & Algorithms Fall 2019 Lab # 7

3. Add a function InsertatEnd() that inserts a value at the end of the List.

def InsertatEnd(self, value):


// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)
L1.InsertatEnd(4)

# The items will be inserted like this:


3
2
4

4. Add a function Insertafter() that inserts a value after a given item in the List.

def Insertafter(self,item,value):
// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)
L1.InsertatEnd(4)
L1.Insertafter(2,5)

# The items will be inserted like this:


3
2
5
4

5. Add a function DeleteatFirst() which deletes an element from start of the list.

def DeleteatFirst(self):
// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)
Data Structures & Algorithms Fall 2019 Lab # 7

L1.InsertatEnd(4)
L1.Insertafter(2,5)
L1.DeleteatFirst()

# The List will look like this:

2
5
4

6. Add a function DeleteatEnd() which deletes an element at the end of the list.

def DeleteatEnd():
// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)
L1.InsertatEnd(4)
L1.Insertafter(2,5)
L1.DeleteatFirst()
L1.DeleteatEnd()

# The List will look like this:

2
5

7. Add a function DeletebyValue() which deletes a node from the list by passing a value.

def DeletebyValue(self,value):
// your code goes here

Example:
L1 = LinkedList()
L1.InsertatFirst(2)
L1.InsertatFirst(3)
L1.InsertatEnd(4)
L1.Insertafter(2,5)
L1.DeletebyValue(3)

# The List will look like this:


2
5
4
Data Structures & Algorithms Fall 2019 Lab # 7

B. Create a class Stack and implement the Stack operations using Linked List.

class Stack:
def __init__(self):
// your code goes here

C. Create a class Queue and implement the Queue operations using Linked List.

class Queue:
def __init__(self):
// your code goes here

Home Assignment
Modify the Singly Linked List program to implement the operations of doubly linked list.

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