package Trees;

import java.security.KeyPair;

import java.security.PrivateKey;

import java.util.*;

public class TopView_ofTree {

public static void main(String[] args) {

}

class Node {

int data;

Node left,right;

Node(int data){

this.data = data;

}

}

/*static ArrayList<Integer> topViewTree(Node root){

Queue<KeyPair> q = new ArrayDeque<>();

Map<Node,Integer> map = new TreeMap<>();

//q.offer(new KeyPair(root,0));

}*/

}