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  1. #include<stdio.h>
  2. #include<stdlib.h>
  3. struct node 
  4. {
  5.     int info;
  6. 	struct node *link;
  7. };
  8. struct node *addtobeg(struct node *start,int data)
  9. {
  10. 	struct node *tmp;
  11. 	tmp=(struct node *)malloc(sizeof(struct node));
  12. 	tmp->info=data;
  13. 	tmp->link=NULL;
  14. 	start=tmp;
  15. 	return start;
  16. }
  17. struct node *addtoend(struct node *start,int data)
  18. {
  19. 	struct node *tmp,*p;
  20. 	if(start==NULL)
  21. 	{
  22. 		printf("No 1st element:\n");
  23. 		return start;
  24. 	}
  25. 	p=start;
  26. 	while(p->link!=NULL)
  27. 	p=p->link;
  28. 	tmp=(struct node *)malloc(sizeof(struct node));
  29. 	tmp->info=data;
  30. 	tmp->link=p->link;
  31. 	p->link=tmp;
  32. 	return start;
  33. }
  34. void display(struct node *start)
  35. {
  36. 	struct node *p;
  37. 	if(start==NULL)
  38. 	{
  39. 		printf("Empty list:\n");
  40. 		return;
  41. 	}
  42. 	p=start;
  43. 	printf("\n");
  44. 	while(p!=NULL)
  45. 	{
  46. 	  printf(" %d",p->info);
  47. 	  p=p->link;
  48.     }
  49.     printf("\n");
  50. }
  51. struct node *create_list(struct node *start)
  52. {
  53. 	start=addtobeg(start,23);
  54. 	start=addtoend(start,67);
  55. 	start=addtoend(start,89);
  56. 	start=addtoend(start,7);
  57. 	start=addtoend(start,34);
  58. 	return start;
  59. }
  60. struct node *deletes(struct node *start)
  61. {
  62. 	struct node *current,*next;
  63. 	current=start;
  64. 	while(current!=NULL)
  65. 	{
  66. 		next=current->link;
  67. 		free(current);
  68. 		start=next;
  69. 		current=next;
  70. 	}
  71. 	start=NULL;
  72. 	return start;
  73. }
  74. int main()
  75. {
  76. 	struct node *start;
  77. 	start=NULL;
  78. 	start=create_list(start);
  79. 	display(start);
  80. 	printf("After deletion:\n");
  81. 	start=deletes(start);
  82. 	display(start);
  83. 	return 0;
  84. }
Success #stdin #stdout 0s 1964KB
comments (?)
stdin
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Standard input is empty
stdout
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 23 67 89 7 34
After deletion:
Empty list:
https://ideone.com/dZoCiX
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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