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double linked list python

Coding Ninjas answered on June 15, 2022 Popularity 8/10 Helpfulness 1/10

answer double linked list python

related Double-Linked List Python

double linked list python

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Doubly Linked List carry a link element that is called first and last. Every link carries a data field(s) and two link fields called next and prev. Each link is linked with its next link using its next link. Each link is linked with its previous link using its previous link.

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Contributed on Jul 04 2022

Coding Ninjas

0 Answers Avg Quality 2/10

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Double-Linked List Python

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# node structure
class Node:
  def __init__(self, data):
    self.data = data
    self.next = None
    self.prev = None

#class Linked List
class LinkedList:
  def __init__(self):
    self.head = None

  #Add new element at the start of the list
  def push_front(self, newElement):
    newNode = Node(newElement)
    if(self.head == None):
      self.head = newNode
      return
    else:
      self.head.prev = newNode
      newNode.next = self.head
      self.head = newNode

  #display the content of the list
  def PrintList(self):
    temp = self.head
    if(temp != None):
      print("The list contains:", end=" ")
      while (temp != None):
        print(temp.data, end=" ")
        temp = temp.next
      print()
    else:
      print("The list is empty.")

# test the code                  
MyList = LinkedList()

#Add three elements at the start of the list.
MyList.push_front(10)
MyList.push_front(20)
MyList.push_front(30)
MyList.PrintList()

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Contributed on Jun 15 2022

Fierce Flamingo

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Double-Linked List Python

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# Node of a doubly linked list 
class Node:
    def __init__(self, next=None, prev=None, data=None):
        self.next = next # reference to next node in DLL
        self.prev = prev # reference to previous node in DLL
        self.data = data

Popularity 1/10 Helpfulness 1/10 Language python

Source: www.codingninjas.com

Tags: python

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Contributed on Jul 04 2022

Coding Ninjas

0 Answers Avg Quality 2/10

double linked list python

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