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class Node:
def __init__(self, key):
self.left = None
self.right = None
self.val = key
def insert(root, key):
if root is None:
return Node(key)
else:
if root.val < key:
root.right = insert(root.right, key)
else:
root.left = insert(root.left, key)
return root
def inorder(root):
if root:
inorder(root.left)
print(root.val)
inorder(root.right)
r = Node(50)
r = insert(r, 30)
r = insert(r, 20)
r = insert(r, 40)
r = insert(r, 70)
r = insert(r, 60)
r = insert(r, 80)
inorder(r) |