{"id":143289,"date":"2024-09-02T10:28:57","date_gmt":"2024-09-02T04:58:57","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=143289"},"modified":"2024-09-02T10:28:57","modified_gmt":"2024-09-02T04:58:57","slug":"create-display-and-reverse-display-in-circular-doubly-linked-list-in-dsa-python","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/create-display-and-reverse-display-in-circular-doubly-linked-list-in-dsa-python\/","title":{"rendered":"Create, Display and Reverse Display in Circular Doubly Linked List in DSA Python"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># implementation of doubly Circular Linked list\r\nclass Node:\r\n    def __init__(self):\r\n        self.ladd=None\r\n        self.data=None\r\n        self.radd=None\r\n\r\nclass CircularDoubleList:\r\n     def __init__(self):\r\n          self.start=None\r\n          self.count=0\r\n          # method for create list\r\n     def createList(self):\r\n         n=int(input(\"Enter an element\"))\r\n         self.start=Node()\r\n         self.start.ladd=None\r\n         self.start.data=n\r\n         self.start.radd=None\r\n         temp=self.start\r\n         self.count=self.count+1\r\n         choice=input(\"Want to continue: \")\r\n         while(choice==\"Y\" or choice==\"y\"):\r\n              n=int(input(\"Enter next element\"))\r\n              newnode=Node()\r\n              newnode.ladd=None\r\n              newnode.data=n\r\n              newnode.radd=None\r\n              temp.radd=newnode\r\n              newnode.ladd=temp\r\n              self.start.ladd=newnode\r\n              newnode.radd=self.start\r\n              temp=temp.radd\r\n              self.count=self.count+1\r\n              choice=input(\"Want to continue: \")\r\n      \r\n      # method for display    \r\n     def displayList(self):\r\n         if(self.start==None):\r\n             print(\"List not found\")\r\n         else:\r\n             temp=self.start\r\n             print()\r\n             while(1):\r\n                 print(temp.data,end=\" \") \r\n                 temp=temp.radd\r\n                 if(temp==self.start):\r\n                     break   \r\n             print(\"\\nTotal Node is : \" ,self.count)         \r\n\r\n       # method for reverse display    \r\n     def reversedisplayList(self):\r\n          if(self.start==None):\r\n             print(\"List not found\")\r\n          else: \r\n           temp=self.start.ladd \r\n           temp1=self.start.ladd \r\n           while(1):\r\n               print(temp.data,end=\" \")\r\n               temp=temp.ladd\r\n               if(temp==temp1):\r\n                   break\r\n\r\n# Main Menu\r\nmylist=CircularDoubleList()\r\nwhile(1):\r\n    print(\"------------------Circular Doubly Linked List-----------------\")\r\n    print(\"1.Create\")\r\n    print(\"2.Display\")\r\n    print(\"3.Reverse Display\")\r\n    print(\"4.Insert First\")\r\n    print(\"5.Insert Last\")\r\n    print(\"6.Insert Middle\")\r\n    print(\"7.Delete First\")\r\n    print(\"8.Delete Last\")\r\n    print(\"9.Delete Middle\")\r\n    print(\"10.Exit\")\r\n    print(\"----------------------------------------------------------------\")\r\n    choice=int(input(\"Enter your choice\"))\r\n    if(choice==1):\r\n        mylist.createList()\r\n    elif(choice==2):\r\n        mylist.displayList()\r\n    elif(choice==3):\r\n        mylist.reversedisplayList()\r\n    else:\r\n        break        \r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 # implementation of doubly Circular Linked list class Node: def __init__(self): self.ladd=None self.data=None self.radd=None class CircularDoubleList: def __init__(self): self.start=None self.count=0 # method for create list def createList(self): n=int(input(&#8220;Enter an element&#8221;)) self.start=Node() self.start.ladd=None&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32847],"tags":[32278,32966,32968,32965,32853,32922,32923,32967,32848],"class_list":["post-143289","post","type-post","status-publish","format-standard","hentry","category-dsa-python-tutorials","tag-circular-doubly-linked-list","tag-circular-doubly-linked-list-in-dsa-python","tag-create-display-reverse-display-in-circular-doubly-linked-list","tag-create-display-reverse-display-in-circular-doubly-linked-list-in-dsa-python","tag-dsa-python","tag-dsa-python-practical","tag-dsa-python-program","tag-dsa-python-program-on-circular-doubly-linked-list","tag-dsa-using-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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