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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. struct node
  5.   {
  6.    int key;
  7.    struct node *next;
  8.   };
  9.  
  10. void add(struct node **root,int key)
  11.   {
  12.    struct node *temp=(struct node*)malloc(sizeof(struct node));
  13.    temp->key=key;
  14.    temp->next=*root;
  15.    *root=temp;
  16.   }
  17.  
  18. void rem(struct node **root,int key)
  19.   {
  20.    struct node *temp,**curr;
  21.    for(curr=root;*curr;curr=&(*curr)->next)
  22.      {
  23.       if((*curr)->key==key)
  24.         {
  25.          temp=*curr;
  26.          *curr=temp->next;
  27.          free(temp);
  28.          break;
  29.         }
  30.      }
  31.   }
  32.  
  33. void destroy(struct node *root)
  34.   {
  35.    struct node *temp;
  36.    while(root)
  37.      {
  38.       temp=root;
  39.       root=root->next;
  40.       free(temp);
  41.      }
  42.   }
  43.  
  44. void show(struct node *list)
  45.   {
  46.    printf("{");
  47.    for(;list;list=list->next) printf(" %d",list->key);
  48.    printf(" }\n");
  49.   }
  50.  
  51. int main()
  52.   {
  53.    struct node *list=NULL;
  54.    add(&list,12); show(list);
  55.    add(&list,14); show(list);
  56.    add(&list,16); show(list);
  57.  
  58.    rem(&list,16); show(list);
  59.    rem(&list,12); show(list);
  60.    rem(&list,14); show(list);
  61.  
  62.    destroy(list);
  63.    return 0;
  64.   }
Success #stdin #stdout 0s 2244KB
comments (?)
stdin
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Standard input is empty
stdout
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{ 12 }
{ 14 12 }
{ 16 14 12 }
{ 14 12 }
{ 14 }
{ }
https://ideone.com/VQuPa7
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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