#include<stdio.h>
struct node{
    int data;
    struct node*left,*right;
};
struct node*createnode(int data){
    structnode*create node=(struct node*)mal
    new node->data=data;
    new node->left=new node->right=NULL;
    return node;
}
struct node*insert(struct node*node, int d;
if(node == NULL)
return createnode(data node->data)
node->left = insert(node->left,data
else if(data->node->data)
node->right=insert(node->right,data)
return node;
}