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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. struct list {
  5. 	int data;
  6. 	struct list *next;
  7. } List, *PList;
  8.  
  9. struct list * list_insert (int data, struct list * root)
  10. {
  11. 	struct list *p = (struct list *) malloc(sizeof (struct list));
  12. 	p->data = data;
  13. 	p->next = NULL;
  14. 	if (!root)
  15. 		root = p;
  16. 	else
  17. 	{
  18. 		struct list *iter = root;
  19. 		while (iter->next)
  20. 			iter = iter->next;
  21. 		iter->next = p;
  22. 	}
  23. 	return root;
  24. }
  25.  
  26. void list_print (struct list * root)
  27. {
  28. 	while (root)
  29. 	{
  30. 		printf ("%d\n", root->data);
  31. 		root = root->next;
  32. 	}
  33. }
  34.  
  35. void list_destroy (struct list * root)
  36. {
  37. 	if (root != NULL)
  38. 	{
  39. 		list_destroy (root->next);
  40. 		free (root);
  41. 	}
  42. }
  43.  
  44. int main (int argc, char *argv[])
  45. {
  46. 	struct list *root = NULL;
  47. 	root = list_insert (1, root);
  48. 	root = list_insert (2, root);
  49. 	root = list_insert (3, root);
  50.  
  51. 	list_print(root);
  52. 	list_destroy (root);
  53. 	list_print(root);
  54.  
  55. 	int p;
  56. 	scanf("%d", &p);
  57. 	return 0;
  58. }
Success #stdin #stdout 0s 2248KB
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https://ideone.com/Pf9hGw
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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