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  1. #include<iostream>
  2. using namespace std;
  3. class node{
  4. public:
  5. 	int data;
  6. 	node*next;
  7. 	node(int d){
  8. 		data = d;
  9. 		next = NULL;
  10. 	}
  11. };
  12. 	void insertion(node*&head, int data){
  13. 		if(head == NULL){
  14. 			node*n = new node(data);
  15. 			head = n;
  16. 			return;
  17. 		}
  18. 		node *temp = head;
  19. 		while(temp->next!=NULL){
  20. 			temp = temp->next;
  21. 		}
  22. 		temp->next = new node(data);
  23. 		return;
  24. 	}
  25. void fun(node* start)                                                        
  26. {
  27.     if(start == NULL)
  28.     return;
  29.     cout<<start->data<<" "; 
  30.     if(start->next != NULL )
  31.     fun(start->next->next);
  32.     cout<<start->data<<" "; 
  33. }
  34. 	void print(node*head,int n){
  35. 		for(int i=0;i<n;i++){
  36. 			cout<<head->data<<" ";
  37. 			head = head->next;
  38. 		}
  39. 	}
  40.  
  41. int main() {
  42. 	int n,k,data;
  43. 	node*head = NULL;
  44. 	cin>>n>>k;
  45. 	for(int i=0;i<n;i++){
  46. 		cin>>data;
  47. 		insertion(head,data);
  48. 	}
  49. 	// head = kth_reverse(head,k);
  50. 	// print(head,n);
  51. 	fun(head);
  52. 	return 0;
  53. }
Success #stdin #stdout 0s 4384KB
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https://ideone.com/yatcbr
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
secret

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