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  1. #include <iostream>
  2. using namespace std;
  3. struct node{
  4. 	int data;
  5. 	node* next;
  6. };
  7. class linked_l{
  8. 	private:
  9. 		node *head,*tail;
  10. 		public:
  11. 			linked_l(){
  12. 				head=NULL;
  13. 				tail=NULL;
  14. 			}
  15. 		void add_n(int n){
  16. 			node *temp=new node;
  17. 			temp->data=n;
  18. 			temp->next=NULL;
  19. 		    if(head==NULL){
  20. 		    	head=temp;
  21. 		    	tail=temp;
  22. 			}
  23. 			else{
  24. 				tail->next=temp;
  25. 				tail=tail->next;
  26. 			}
  27.  
  28. 		}
  29. 		void add_front(int d){
  30. 			node *temp1=new node;
  31. 			temp1->data=d;
  32. 			temp1->next=NULL;
  33. 			if(head==NULL){
  34. 				head=temp1;
  35. 				tail=temp1;
  36. 			}
  37. 			else{
  38. 				temp1->next=head;
  39. 				head=temp1;
  40. 		}
  41. 	}
  42. 		void add_middle(node* pre,int g){
  43.  
  44. 			node *temp2=new node;
  45. 			temp2->data=g;
  46. 			temp2->next=pre->next;
  47. 			pre->next=temp2;
  48. 		}
  49. 		node* gethead()
  50.     {
  51.         return head;
  52.     }
  53. 		void display()
  54. 		{
  55. 			node* temp;
  56. 			temp=head;
  57. 			while(temp!=NULL)
  58. 			{
  59. 				cout<<temp->data;
  60. 				temp=temp->next;
  61. 					}	
  62. 		}
  63.  
  64. };
  65. int main()
  66. {
  67. 	linked_l a;
  68.  
  69. 	a.add_n(1);
  70. 	a.add_n(2);
  71. 	a.add_n(3);
  72. 	a.add_front(4);
  73. 	//a.add_middle(temp1,6);
  74. 	a.add_middle(a.gethead()->next);
  75. 	a.display();
  76. 	return 0;
  77. }
Compilation error #stdin compilation error #stdout 0s 15232KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:74:32: error: no matching function for call to ‘linked_l::add_middle(node*&)’
  a.add_middle(a.gethead()->next);
                                ^
prog.cpp:42:8: note: candidate: void linked_l::add_middle(node*, int)
   void add_middle(node* pre,int g){
        ^~~~~~~~~~
prog.cpp:42:8: note:   candidate expects 2 arguments, 1 provided
stdout
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Standard output is empty
https://ideone.com/1xbc5C
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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