#include<stdio.h>
#include<stdlib.h>
typedef struct node
{
    int data;
    struct node *left *right;
}Node;
Node *root=NULL;
Node* create(int num)
{
    Node *newnode=(Node*)malloc(sizeof( node));
    
}



















Node* maximum(Node *root) {
    if(root==NULL)
      return root;
    if(root->right!=NULL)
      return maximum(root->right);
    return root;
}