def main():
"""Driver function for a binary search tree."""
bst = BinarySearchTree()
data = [21, 26, 30, 9, 4, 14, 28, 18, 15, 10, 2, 3, 7]
# data = [25, 50, 57, 100, 125, 150, 200]
for i in data:
bst.add(i)
print('21, 9, 4, 2, 3, 7, 14, 10, 18, 15, 26, 30, 28,')
bst.preorder()
print(bst)
# data2 = [21,9,4,18,15,7]
# for i in data2:
# bst.remove(i)
# bst.preorder()
# print(bst)
print('inorder: ', bst.inorder())
print('Height: ', bst.height())
print('Length: ', bst.__len__())
bst.remove(14)
bst.remove(7)
bst.remove(9)
print(bst.rebalance_tree())
print('Height: ', bst.height())
# bst.display()
print('-=-=-')
bst._is_balanced()
print('------')
def test_tree_height(self):
bst = BinarySearchTree()
bst.add(123)
self.assertEqual(bst.height(), 1)
bst.add(12)
bst.add(2)
self.assertEqual(bst.height(), 3)
def test_tree_height(self):
bst = BinarySearchTree()
self.assertEqual(bst.height(), -1)
for i in range(511):
bst.add(i)
self.assertEqual(bst.height(), 510)
bst.rebalance_tree()
self.assertEqual(bst.height(), 8)
def main():
""" Main driver function to test binary search. """
test = BinarySearchTree()
test.add(21)
test.add(26)
test.add(30)
test.add(9)
test.add(4)
test.add(14)
test.add(28)
test.add(18)
test.add(15)
test.add(10)
test.add(2)
test.add(3)
test.add(7)
preorder = test.preorder()
for item in preorder:
print(str(item) + ", ", end=" ")
print("")
print(test)
print("Lonsg string so I can see the test height: ", test.height())
test.remove(21)
test.remove(9)
test.remove(4)
test.remove(18)
test.remove(15)
test.remove(7)
print(test)
bst = BinarySearchTree()
print("Produced: ", bst.height())
print("Expects: ", -1)
for i in range(511):
bst.add(i)
print("Produced: ", bst.height())
print("Expects: ", 510)
bst.rebalance_tree()
print("Produced: ", bst.height())
print("Expects: ", 8)
newtest = BinarySearchTree()
for i in range(7):
newtest.add(i)
newtest.rebalance_tree()
print(newtest)
lasttest = BinarySearchTree()
lasttest.add(1)
print("Added")
lasttest.add(1)
def test_rebalance(self):
bst = BinarySearchTree()
seed(0)
data = sample(range(1, 4000), k=126)
data.sort()
for x in data:
bst.add(x)
original_height = bst.height()
self.assertEqual(data[0], bst.root.data)
bst.rebalance_tree()
tree_data = list(bst.inorder())
self.assertEqual(data, tree_data)
self.assertNotEqual(original_height, bst.height())
def main():
"""
Main function
"""
node = BinarySearchTree()
arr = [21, 26, 30, 9, 4, 14, 28, 18, 15, 10, 2, 3, 7]
for _, value in enumerate(arr):
node.add(value)
print(node.preorder(node.root))
print(node.height())
def main():
'''Driver for program'''
tree = BinarySearchTree()
for val in VALUES:
tree.add(val)
for item in tree.preorder():
print(item, end=", ")
print("\n")
print(tree)
for item in tree.inorder():
print(item, end=", ")
tree.rebalance_tree()
print("\n")
for item in tree.inorder():
print(item, end=", ")
print("\n")
print(tree)
x = BinarySearchTree()
print(x.height())