#### How Can I Implement a Binary Tree Traversal to Print Nodes in a Specific Order?

I’m working on a project where I need to implement different types of tree traversals (in-order, pre-order, post-order) for a binary tree. I understand the basic structure of a binary tree, but I’m struggling with how to write the recursive functions for each traversal method.

Here’s the basic structure of my binary tree:

``````class Node:
def __init__(self, key):
self.left = None
self.right = None
self.val = key

root = Node(1)
root.left = Node(2)
root.right = Node(3)
root.left.left = Node(4)
root.left.right = Node(5)
``````

I’ve looked at some online resources, but I’m still confused about how the recursive calls work and how they ensure the correct order.

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kavindya ranasinghe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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I suggest you to search the web
You can find solution in websites like geeksforgeeks
Here is an example

https://www.geeksforgeeks.org/tree-traversals-inorder-preorder-and-postorder/

New contributor

mu amp is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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I highly recommend her DEEPTI TALESRA `https://youtu.be/RJhh3Jcc9zw?si=Xw4tfPxIIdz8S921`. She explains so well and goes through examples step by step

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