'이진탐색트리 원소 삽입'에 해당되는 글 1건

typedef struct node* tree_pointer;
typedef struct node{
 int data;
 tree_pointer left_child,right_child;
};
//이진 탐색 트리의 순환적 탐색
tree_pointer search(tree_pointer root, int key){
 if(!root) return NULL;
 if(key == root->data) return root;
 if(key < root->data)
  return search(tree_pointer left_child,int key);
 return search(tree_pointer right_child,int key);
}
//이진 탐색 트리의 반복적 탐색
tree_pointer search(tree_pointer tree,int key){
 while(tree){
  if( key == tree->data) return tree;
  if( key < tree->data)
   tree=tree->lefe_child;
  else
   tree=tree->right_child;
 }
 return NULL;
}
//반복적 탐색의 변형
void modified_search(tree_pointer node2,int num){
 tree_pointer temp;
 if(!node2) return NULL;
 while(node2 !=NULL ){
  if(num == node2->data) return node2;
  temp=node2;
  if(num < temp->data)
   temp = temp->left;
  else temp=temp->right;
 }
}

//이진 탐색 트리에 원소를 삽입
void insert_node(tree_pointer* node,int num){
 tree_pointer ptr;
 temp=modified_search(*node,num);
 if( temp || !(*node)){
  ptr = (tree_pointer)malloc(sizeof(node));
  if(IS_FULL(ptr)){
   fprintf(stderr,"The memory is FULL\n");
   exit(1);
  }
  ptr->data = num;
  prt->left_child = prt->right_child = NULL;
  if(*node)
   if(num < temp->data)
    temp->left_child = ptr;
   else temp->right_child =ptr;
  else *node =ptr;
 }
}