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- #include<iostream>
- using namespace std;
- class Node{
- public:
- int data;
- Node *left,*right;
- Node(int key){
- data=key;
- left=right=NULL;
- }
- };
- void Inorder(Node *root){
- if(root==NULL)
- return;
- Inorder(root->left);
- cout<<" "<<root->data;
- Inorder(root->right);
- }
- Node* Search(Node *root,int key){
- if(root==NULL || root->data==key)
- return root;
- if(root->data>key)
- return Search(root->left,key);
- return Search(root->right,key);
- }
- void Insert(Node **root_ref,int key){
- if(*root_ref==NULL){
- *root_ref=new Node(key);
- return;
- }
- if((*root_ref)->data<key)
- Insert(&((*root_ref)->right),key);
- else
- if((*root_ref)->data>key)
- Insert(&((*root_ref)->left),key);
- }
- int main(){
- Node *root=NULL;
- Insert(&root,5);
- Insert(&root,7);
- Insert(&root,2);
- Insert(&root,8);
- Inorder(root);
- }
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