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  1. #include <stdlib.h>
  2. #include <stdio.h>
  3.  
  4. typedef struct ListNode_s {
  5.     int value;
  6.     struct ListNode_s *next;
  7. } ListNode;
  8.  
  9. ListNode *list_push(ListNode **root, int value)
  10. {
  11.     ListNode *node = calloc(1, sizeof(ListNode));
  12.     node->value = value;
  13.     node->next = *root;
  14.     *root = node;
  15.     return node;
  16. }
  17.  
  18. ListNode *list_pop(ListNode **root)
  19. {
  20.     if (!root || !*root) {
  21.         return NULL;
  22.     }
  23.     ListNode *node = *root;
  24.     *root = (*root)->next;
  25.     return node;
  26. }
  27.  
  28. void list_deleteNode(ListNode *node)
  29. {
  30.     if (node) {
  31.         free(node);
  32.     }
  33. }
  34.  
  35. void list_deleteList(ListNode *list)
  36. {
  37.     while (list) {
  38.         ListNode *toFree = list;
  39.         list = list->next;
  40.         list_deleteNode(toFree);
  41.     }
  42. }
  43.  
  44. float list_avg(ListNode *list)
  45. {
  46.     int s = 0, l = 0;
  47.     while (list) {
  48.         s += list->value;
  49.         l += 1;
  50.         list = list->next;
  51.     }
  52.     return s / (float)l;
  53. }
  54.  
  55. int main()
  56. {
  57.     ListNode *list = NULL;
  58.     list_push(&list, 1073741824);
  59.     list_push(&list, 1073741824);
  60.     printf("%f\n", list_avg(list));
  61.     list_deleteList(list);
  62.  
  63.     return 0;
  64. }
Success #stdin #stdout 0s 4380KB
comments (?)
stdin 
Standard input is empty
stdout 
-1073741824.000000
https://ideone.com/WneDbX
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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