{"id":146875,"date":"2025-09-19T12:52:18","date_gmt":"2025-09-19T07:22:18","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146875"},"modified":"2025-09-19T12:52:18","modified_gmt":"2025-09-19T07:22:18","slug":"doubly-linked-list-in-dsa-cpp","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/","title":{"rendered":"Doubly Linked List in DSA C++"},"content":{"rendered":"

Program 1<\/h3>\n
\/\/ Double Linked List\r\n#include<iostream>\r\n#include<stdio.h>\r\nusing namespace std;\r\nclass Node\r\n{\r\n    Node *ladd;\r\n    int data;\r\n    Node *radd;\r\n    public:\r\n    void create();\r\n    void display();\r\n    void reverseDisplay();\r\n    void insert_first();\r\n    void insert_middle();\r\n    void insert_last();\r\n    void delete_first();\r\n    void delete_middle();\r\n    void delete_last();\r\n}; Node *start=NULL,*new1,*prev1,*next1,*temp,*last;\r\nvoid Node::create()\r\n{\r\n       int n;\r\n       char choice;\r\n       cout<<\"Enter an element: \";\r\n       cin>>n;\r\n       start=new Node();\r\n       start->ladd=NULL;\r\n       start->data=n;\r\n       start->radd=NULL;\r\n       temp=start;\r\n       cout<<\"Want to continue(y\/Y): \";\r\n       cin>>choice;\r\n       while(choice=='y' || choice=='Y')\r\n       {\r\n           cout<<\"Enter next element: \";\r\n           cin>>n;\r\n          new1=new Node();\r\n          new1->ladd=NULL;\r\n          new1->data=n;\r\n          new1->radd=NULL;\r\n\r\n          temp->radd=new1;\r\n          new1->ladd=temp;\r\n\r\n          temp=temp->radd;\r\n\r\n          cout<<\"Want to continue(y\/Y): \";\r\n          cin>>choice;\r\n\r\n       }\r\n\r\n}\r\nvoid Node::display()\r\n{\r\n    if(start==NULL)\r\n      cout<<\"\\n List is Empty.....\";\r\n     else\r\n     {\r\n        temp=start;\r\n        while(temp!=NULL)\r\n        {\r\n            cout<<temp->data<<\"    \";\r\n            temp=temp->radd;\r\n        }\r\n     }\r\n}\r\nvoid Node::reverseDisplay()\r\n{\r\n\r\n    if(start==NULL)\r\n      cout<<\"\\n List is Empty.....\";\r\n     else\r\n     {\r\n            temp=start;\r\n            while(temp->radd!=NULL)\r\n            {\r\n                temp=temp->radd;\r\n            }\r\n            while(temp!=NULL)\r\n            {\r\n                cout<<temp->data<<\"   \";\r\n                temp=temp->ladd;\r\n            }\r\n\r\n     }\r\n}\r\nvoid Node::insert_first()\r\n{\r\n      if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n          int n;\r\n          cout<<\"\\n Enter an element: \";\r\n          cin>>n;\r\n          new1=new Node();\r\n          new1->data=n;\r\n          new1->ladd=NULL;\r\n          new1->radd=NULL;\r\n         new1->radd=start;\r\n         start->ladd=new1;\r\n         start=new1;\r\n      } \r\n}\r\n\r\nvoid Node::insert_middle()\r\n{\r\n\r\n    if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n          int n,pos,i=1;\r\n          cout<<\"\\n Enter an element: \";\r\n          cin>>n;\r\n          new1=new Node();\r\n          new1->data=n;\r\n          new1->ladd=NULL;\r\n          new1->radd=NULL;\r\n          cout<<\"\\n Enter poistion of Middle: \";\r\n          cin>>pos;\r\n          next1=start;\r\n          while(i<pos)\r\n          {\r\n             prev1=next1;\r\n             next1=next1->radd;\r\n             i++;\r\n          }\r\n          prev1->radd=new1;\r\n          new1->ladd=prev1;\r\n          new1->radd=next1;\r\n          next1->ladd=prev1;\r\n      }   \r\n}\r\n\r\nvoid Node::insert_last()\r\n{\r\n    if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n          int n;\r\n          cout<<\"\\n Enter an element: \";\r\n          cin>>n;\r\n          new1=new Node();\r\n          new1->data=n;\r\n          new1->ladd=NULL;\r\n          new1->radd=NULL;\r\n          last=start;\r\n          while(last->radd!=NULL)\r\n          {\r\n            last=last->radd;\r\n          }\r\n          last->radd=new1;\r\n          new1->ladd=last;\r\n      }\r\n\r\n}\r\nvoid Node::delete_first()\r\n{\r\n    if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n          temp=start;\r\n          start=start->radd;\r\n          cout<<\"\\n Deleted node is: \"<<temp->data;\r\n          delete temp;\r\n      }\r\n}\r\nvoid Node::delete_middle()\r\n{\r\n    if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n              int pos,i=1;\r\n              cout<<\"\\n Enter the node poistion for delete: \";\r\n              cin>>pos;\r\n              next1=start;\r\n              while(i<pos) \r\n              {\r\n                  prev1=next1;\r\n                  next1=next1->radd;\r\n                  i++;\r\n              }\r\n              temp=next1;\r\n              next1=next1->radd;\r\n              prev1->radd=next1;\r\n              next1->ladd=prev1;\r\n              cout<<\"\\n Deleted node is : \"<<temp->data;\r\n              delete temp;\r\n      }\r\n}\r\nvoid Node::delete_last()\r\n{\r\n     if(start==NULL)\r\n       cout<<\"\\n List is empty\";\r\n      else\r\n      {\r\n           temp=start;\r\n           while(temp->radd!=NULL)\r\n           {\r\n               prev1=temp;\r\n               temp=temp->radd;\r\n           }\r\n           prev1->radd=NULL;\r\n           temp->ladd=NULL;\r\n           cout<<\"\\n Deleted node is: \"<<temp->data;\r\n          delete temp;\r\n      }\r\n}\r\n\r\nint main()\r\n{\r\n    system(\"cls\");\r\n    int choice;\r\n    Node obj;\r\n  do\r\n  {  \r\n    cout<<\"\\n------------Double Linked List Menu-----------------------\";\r\n    cout<<\"\\n 1. Create\";\r\n    cout<<\"\\n 2. Display\";\r\n    cout<<\"\\n 3. Insert First\";\r\n    cout<<\"\\n 4. Insert Middle\";\r\n    cout<<\"\\n 5. Insert Last\";\r\n    cout<<\"\\n 6. Delete First\";\r\n    cout<<\"\\n 7. Delete Middle\";\r\n    cout<<\"\\n 8. Delete Last\";\r\n    cout<<\"\\n 9. Search\";\r\n    cout<<\"\\n 10.Reverse Display\";\r\n    cout<<\"\\n 11. Exit\";\r\n    cout<<\"\\n-------------------------------------------------------\";\r\n    cout<<\"\\n Enter your choice: \";\r\n    cin>>choice;\r\n    switch(choice)\r\n    {\r\n        case 1:obj.create();break;\r\n        case 2:obj.display();break;\r\n        case 3:obj.insert_first();break;\r\n        case 4:obj.insert_middle();break;\r\n        case 5:obj.insert_last();break;\r\n        case 6:obj.delete_first();break;\r\n        case 7:obj.delete_middle();break;\r\n        case 8:obj.delete_last();break;\r\n        \/\/case 9:obj.searchData();break;\r\n            case 10:obj.reverseDisplay();break;\r\n            case 11:break;\r\n            default:cout<<\"\\n Invalid choice\";\r\n    }\r\n}while(choice!=11);\r\n    return 0;\r\n}<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Program 1 \/\/ Double Linked List #include<iostream> #include<stdio.h> using namespace std; class Node { Node *ladd; int data; Node *radd; public: void create(); void display(); void reverseDisplay(); void insert_first(); void insert_middle(); void insert_last(); void...<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31449],"tags":[4038,35317,35314,32874,35315,32869,32870,35316],"class_list":["post-146875","post","type-post","status-publish","format-standard","hentry","category-dsa-cpp-tutorials","tag-doubly-linked-list","tag-doubly-linked-list-in-c","tag-doubly-linked-list-in-dsa-c","tag-dsa-c","tag-dsa-c-doubly-linked-list","tag-dsa-c-practical","tag-dsa-c-program","tag-dsa-c-program-on-doubly-linked-list"],"yoast_head":"\nDoubly Linked List in DSA C++ - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Doubly Linked List in DSA C++ - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ Double Linked List #include<iostream> #include<stdio.h> using namespace std; 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class Node { Node *ladd; int data; Node *radd; public: void create(); void display(); void reverseDisplay(); void insert_first(); void insert_middle(); void insert_last(); void...","og_url":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/","og_site_name":"DataFlair","article_publisher":"https:\/\/www.facebook.com\/DataFlairWS\/","article_published_time":"2025-09-19T07:22:18+00:00","author":"DataFlair Team","twitter_card":"summary_large_image","twitter_creator":"@DataFlairWS","twitter_site":"@DataFlairWS","twitter_misc":{"Written by":"DataFlair Team","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/#article","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/"},"author":{"name":"DataFlair Team","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/c187795dc82ab948373cca526df7c445"},"headline":"Doubly Linked List in DSA C++","datePublished":"2025-09-19T07:22:18+00:00","mainEntityOfPage":{"@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/"},"wordCount":8,"commentCount":0,"publisher":{"@id":"https:\/\/data-flair.training\/blogs\/#organization"},"keywords":["Doubly linked list","doubly linked list in c++","doubly linked list in dsa c++","dsa c++","dsa c++ doubly linked list","dsa c++ practical","dsa c++ program","dsa c++ program on doubly linked list"],"articleSection":["DSA using C++ Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/","url":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/","name":"Doubly Linked List in DSA C++ - DataFlair","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/#website"},"datePublished":"2025-09-19T07:22:18+00:00","breadcrumb":{"@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/data-flair.training\/blogs\/doubly-linked-list-in-dsa-cpp\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Blog Home","item":"https:\/\/data-flair.training\/blogs\/"},{"@type":"ListItem","position":2,"name":"DSA using C++ Tutorials","item":"https:\/\/data-flair.training\/blogs\/category\/dsa-cpp-tutorials\/"},{"@type":"ListItem","position":3,"name":"Doubly Linked List in DSA C++"}]},{"@type":"WebSite","@id":"https:\/\/data-flair.training\/blogs\/#website","url":"https:\/\/data-flair.training\/blogs\/","name":"DataFlair","description":"Learn Today. 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