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class Node: # This is the Class Node with constructor that contains data variable to type data and left,right pointers.

def __init__(self, data):

self.data = data

self.left = None

self.right = None

def display(tree): # In Order traversal of the tree

if tree is None:

return

if tree.left is not None:

display(tree.left)

print(tree.data)

if tree.right is not None:

display(tree.right)

return

def depth_of_tree(

tree,

): # This is the recursive function to find the depth of binary tree.

if tree is None:

return 0

else:

depth_l_tree = depth_of_tree(tree.left)

depth_r_tree = depth_of_tree(tree.right)

if depth_l_tree > depth_r_tree:

return 1 + depth_l_tree

else:

return 1 + depth_r_tree

def is_full_binary_tree(

tree,

): # This functions returns that is it full binary tree or not?

if tree is None:

return True

if (tree.left is None) and (tree.right is None):

return True

if (tree.left is not None) and (tree.right is not None):

return is_full_binary_tree(tree.left) and is_full_binary_tree(tree.right)

else:

return False

def main(): # Main func for testing.

tree = Node(1)

tree.left = Node(2)

tree.right = Node(3)

tree.left.left = Node(4)

tree.left.right = Node(5)

tree.left.right.left = Node(6)

tree.right.left = Node(7)

tree.right.left.left = Node(8)

tree.right.left.left.right = Node(9)

print(is_full_binary_tree(tree))

print(depth_of_tree(tree))

print("Tree is: ")

display(tree)

if __name__ == "__main__":

main()

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