测试图片code

?

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_

?

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()

?