Level Order Traversal of Binary Tree

Given a binary tree, the task is to print level order traversal line by line of the tree. But what is level order traversal?

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This approach has two functions. One prints all nodes at a particular level (CurrentLevel), and another prints level order traversal (Levelorder).

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Time complexity: O(n^2) (for skewed tree) Space complexity: O(n) O(n^2) (for skewed tree) Space complexity: O(log n) (for balanced tree)

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1. Initially, we insert root into queue and iterate over it until it is empty. 2. We will pop from top of queue in every iteration & print value at the top.

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Time Complexity: O(N) where n is no. of nodes in binary tree. Space Complexity: O(N) where n is no. of nodes in binary tree.

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How to implement this approach in different programming languages?

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Level Order Traversal of Binary Tree

A Quick Overview

Given a binary tree, the task is to print level order traversal line by line of the tree. But what is level order traversal?

Problem Statement

This approach has two functions. One prints all nodes at a particular level (CurrentLevel), and another prints level order traversal (Levelorder).

Recursive Approach

Time complexity: O(n^2) (for skewed tree) Space complexity: O(n) O(n^2) (for skewed tree) Space complexity: O(log n) (for balanced tree)

1. Initially, we insert root into queue and iterate over it until it is empty. 2. We will pop from top of queue in every iteration & print value at the top.

Level Order Traversal Using Queue

Time Complexity: O(N) where n is no. of nodes in binary tree. Space Complexity: O(N) where n is no. of nodes in binary tree.

How to implement this approach in different programming languages?