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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. struct Node {
  5.     int data;
  6.     struct Node* next;
  7.     Node(int data)
  8.     {
  9.         this->data = data;
  10.         next = NULL;
  11.     }
  12. };
  13.  
  14. struct LinkedList {
  15.     Node* head;
  16.     LinkedList() { head = NULL; }
  17.  
  18.     void reverse()
  19.     {
  20.         Node* current = head;
  21.         Node *prev = NULL, *next = NULL;
  22.  
  23.         while (current != NULL) {
  24.             // Store next
  25.             next = current->next;
  26.             // Reverse current node's pointer
  27.             current->next = prev;
  28.             // Move pointers one position ahead.
  29.             prev = current;
  30.             current = next;
  31.         }
  32.         head = prev;
  33.     }
  34.  
  35.     void display()
  36.     {
  37.         struct Node* temp = head;
  38.         while (temp != NULL) {
  39.             cout << temp->data << " ";
  40.             temp = temp->next;
  41.         }
  42.     }
  43.  
  44.     void push(int data)
  45.     {
  46.         Node* temp = new Node(data);
  47.         temp->next = head;
  48.         head = temp;
  49.     }
  50. };
  51.  
  52. int main()
  53. {
  54.     LinkedList ll;
  55.     ll.push(05);
  56.     ll.push(10);
  57.     ll.push(45);
  58.     ll.push(26);
  59.     ll.push(25);
  60.     ll.push(62);
  61.  
  62.     cout << "linked list\n";
  63.     ll.display(); //Given values  randomly
  64.  
  65.     ll.reverse();
  66.  
  67.     cout << "\nReversed linked list \n";
  68.     ll.display();
  69.     return 0;
  70. }
  71.  
Success #stdin #stdout 0s 5304KB
comments (?)
stdin 
Standard input is empty
stdout 
linked list
62 25 26 45 10 5 
Reversed linked list 
5 10 45 26 25 62
https://ideone.com/m9fn71
language:
C++ (gcc 8.3)
created:
19 days ago
visibility:
public

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