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);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);Copyright © 2021 Codeinu
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