{"id":146876,"date":"2025-09-19T15:52:53","date_gmt":"2025-09-19T10:22:53","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=146876"},"modified":"2025-09-19T15:52:53","modified_gmt":"2025-09-19T10:22:53","slug":"reverse-a-linked-list-in-dsa-cpp","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/reverse-a-linked-list-in-dsa-cpp\/","title":{"rendered":"Reverse a Linked List in DSA C++"},"content":{"rendered":"

Program 1<\/h3>\n
#include<iostream>\r\n#include<stdio.h>\r\nusing namespace std;\r\nclass Node\r\n{\r\n    int data;\r\n    Node *add;\r\n\r\n    public:\r\n    void create();\r\n    void display();\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    void searchData();\r\n    void reverseDisplay();\r\n\r\n};Node *start=NULL,*new1,*temp,*prev1,*next1;\r\n\r\nvoid Node::reverseDisplay()\r\n{\r\n    Node *ar[500];\r\n    if(start==NULL)\r\n    cout<<\"List not found.....\";\r\n    else\r\n    {\r\n        int i=0;\r\n        temp=start;\r\n        while(temp!=NULL)\r\n        {\r\n            ar[i]=temp;\r\n            i++;\r\n           temp=temp->add;   \r\n        }\r\n        i--;\r\n        cout<<\"Reverse order Elements: \";\r\n        while(i>=0)\r\n        {\r\n           cout<<ar[i]->data<<\"   \";  \r\n           i--; \r\n        }\r\n\r\n    }\r\n}\r\nvoid Node::create()\r\n{\r\n\r\n    int n;\r\n    cout<<\"\\nEnter an element: \";\r\n    cin>>n;\r\n    start=new Node;\r\n    start->data=n;\r\n    start->add=NULL;\r\n    temp=start;\r\n    char ch;\r\n    cout<<\"\\nWant to coninue(Y\/y): \";\r\n    cin>>ch;\r\n    while(ch=='y'|| ch=='Y')\r\n    {\r\n        cout<<\"\\nEnter an element: \";\r\n        cin>>n;\r\n       new1=new Node;\r\n       new1->data=n;\r\n       new1->add=NULL;\r\n       temp->add=new1;\r\n       temp=temp->add;   \r\n       cout<<\"\\nWant to coninue(Y\/y): \";\r\n       cin>>ch;\r\n    }\r\n\r\n\r\n}\r\nvoid Node::display()\r\n{\r\n    if(start==NULL)\r\n     cout<<\"\\n List not found\";\r\n   else\r\n   {\r\n      temp=start;\r\n      cout<<\"\\nElements of List: \";\r\n      while(temp!=NULL)\r\n      {\r\n         cout<<temp->data<<\"   \";\r\n         temp=temp->add;\r\n      }\r\n   }  \r\n}\r\nvoid Node::insert_first()\r\n{\r\n       int n;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n           cout<<\"\\n Enter an element for insert\";\r\n           cin>>n;\r\n           new1=new Node;\r\n           new1->data=n;\r\n           new1->add=NULL;\r\n           new1->add=start;\r\n           start=new1;\r\n      }\r\n}\r\nvoid Node::insert_middle()\r\n{\r\n    int n;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n          int pos,i;\r\n          cout<<\"\\n Enter an element for insert\";\r\n           cin>>n;\r\n           new1=new Node;\r\n           new1->data=n;\r\n           new1->add=NULL;\r\n           cout<<\"\\nEnter poisition: \";\r\n           cin>>pos;\r\n           i=1;\r\n           next1=start;\r\n           while(i<pos)\r\n           {\r\n                prev1=next1;\r\n                next1=next1->add;\r\n                i++;\r\n           }\r\n           prev1->add=new1;\r\n           new1->add=next1;\r\n      }\r\n}\r\n\r\nvoid Node::insert_last()\r\n{\r\n    int n;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n            cout<<\"\\n Enter an element for insert\";\r\n           cin>>n;\r\n           new1=new Node;\r\n           new1->data=n;\r\n           new1->add=NULL;\r\n\r\n          temp=start;\r\n          while(temp->add!=NULL)           \r\n          {\r\n              temp=temp->add;\r\n          }\r\n          temp->add=new1;\r\n      }\r\n}\r\nvoid Node::delete_first()\r\n{\r\n       int n;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n         temp=start;\r\n         cout<<\"\\nDeleted node is : \"<<temp->data;\r\n         start=start->add;\r\n         delete temp;\r\n\r\n      }\r\n}\r\nvoid Node::delete_middle()\r\n{\r\n     int n,pos,i;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n            cout<<\"\\n Enter poistion of node for delete: \";\r\n            cin>>pos;\r\n            i=1;\r\n            temp=start;\r\n            while(i<pos)\r\n            {\r\n                prev1=temp;\r\n                temp=temp->add;\r\n                i++;\r\n            }\r\n            next1=temp->add;\r\n            cout<<\"\\n Deleted node is: \"<<temp->data;\r\n            prev1->add=next1;\r\n            delete temp;\r\n      }\r\n}\r\nvoid Node::delete_last()\r\n{\r\n     int n;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n          temp=start;\r\n          while(temp->add!=NULL)\r\n          {\r\n             prev1=temp;\r\n             temp=temp->add;\r\n          }\r\n          cout<<\"\\n Deleted node is: \"<<temp->data;\r\n          prev1->add=NULL;\r\n          delete temp;\r\n      }\r\n}\r\n\r\nvoid Node::searchData()\r\n{\r\n    int s,flag=0;\r\n      if(start==NULL)\r\n      cout<<\"\\n List not found\";\r\n      else\r\n      {\r\n          cout<<\"Enter an element for search: \";\r\n          cin>>s;\r\n          temp=start;\r\n          while(temp!=NULL)\r\n          {\r\n             if(temp->data==s)\r\n             {\r\n                  flag=1;\r\n                  break;\r\n             }\r\n             temp=temp->add;\r\n          }\r\n         if(flag==1) \r\n         cout<<\"\\n Searching success: \";\r\n        else\r\n         cout<<\"\\n Searching not success: \"; \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------------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 #include<iostream> #include<stdio.h> using namespace std; class Node { int data; Node *add; public: void create(); void display(); void insert_first(); void insert_middle(); void insert_last(); void delete_first(); void delete_middle(); void delete_last(); void searchData(); 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":[32874,32869,32870,35321,35320,35319,35322,35318],"class_list":["post-146876","post","type-post","status-publish","format-standard","hentry","category-dsa-cpp-tutorials","tag-dsa-c","tag-dsa-c-practical","tag-dsa-c-program","tag-dsa-c-program-on-reverse-a-linked-list","tag-dsa-c-reverse-a-linked-list","tag-reverse-a-linked-list","tag-reverse-a-linked-list-in-c","tag-reverse-a-linked-list-in-dsa-c"],"yoast_head":"\nReverse a 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\/reverse-a-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=\"Reverse a Linked List in DSA C++ - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 #include<iostream> #include<stdio.h> using namespace std; 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