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Day 24.java
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Day 24.java
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import java.io.*;
import java.util.*;
class Node{
Node left,right;
int data;
Node(int data){
this.data=data;
left=right=null;
}
}
class Solution{
static void levelOrder(Node root){
List<Integer> kk=new ArrayList<>();
Queue<Node> nm=new LinkedList<>();
if(root==null)
{
return;
}
nm.offer(root);
while(!nm.isEmpty())
{
int k=nm.size();
for(int i=0;i<k;i++)
{
if(nm.peek().left!=null)
{
nm.offer(nm.peek().left);
}
if(nm.peek().right!=null)
{
nm.offer(nm.peek().right);
}
kk.add(nm.poll().data);
}
}
for(int i=0;i<kk.size();i++)
{
System.out.print(kk.get(i)+" ");
}
}
public static Node insert(Node root,int data){
if(root==null){
return new Node(data);
}
else{
Node cur;
if(data<=root.data){
cur=insert(root.left,data);
root.left=cur;
}
else{
cur=insert(root.right,data);
root.right=cur;
}
return root;
}
}
public static void main(String args[]){
Scanner sc=new Scanner(System.in);
int T=sc.nextInt();
Node root=null;
while(T-->0){
int data=sc.nextInt();
root=insert(root,data);
}
levelOrder(root);
}
}