def testTreeWithOneNode():
print(divider + "Executing testTreeWithOneNode()...")
tree = BinaryTree()
tree.insert(Node(0))
assert (tree.size == 1)
assert (tree.height == 0)
print("Passed" + divider)
def testBFSSingleInsert():
print(divider + "Executing testBFSSingleInsert()...")
nodes = []
tree = BinaryTree()
tree.insert(Node(7))
nodes = tree.getNodesBFS()
print(nodesToString(nodes))
assert (nodes[0].data == 7)
print("Passed" + divider)
def testSingleInserts(loops):
print(divider + "Executing testSingleInserts()...")
for i in range(loops):
tree = BinaryTree()
val = randint(MIN_INT_32, MAX_INT_32)
tree.insert(Node(val))
assert (tree.size == 1)
assert (tree.height == 0)
print("Passed" + divider)
def testSequentialInsert():
print(divider + "Executing testSequentialInsert()...")
tree = BinaryTree()
for i in range(1, 11):
tree.insert(Node(i))
assert (tree.root.data == 1)
assert (tree.size == 10)
#print("Tree height is {}, expected to be {}".format(tree.height, 9))
assert (tree.height == 9)
print("Passed" + divider)
def testBFSRandom():
print(divider + "Executing testBFSRandom()...")
tree = BinaryTree()
expectedNodes = [32, 16, 50, 2, 30, 48, 53, 5, 18, 12]
for num in randomNumbers:
tree.insert(Node(num))
bfsNodes = tree.getNodesBFS()
print(nodesToString(bfsNodes))
# Ensure that the order of the nodes is in the proper order for BFS
for i in range(0, len(expectedNodes)):
assert (bfsNodes[i].data == expectedNodes[i])
print("Passed" + divider)
def testRandomInsert():
print(divider + "Executing testRandomInsert()...")
numbers = [7, 2, 10, 4, 3, 1, 5, 8, 6, 9]
tree = BinaryTree()
for number in numbers:
tree.insert(Node(number))
assert (tree.root.data == 7)
assert (tree.size == 10)
print("Tree height is {}, expected to be {}".format(tree.height, 4))
tree.printDFS()
print()
tree.printBFS()
assert (tree.height == 4)
print("Passed" + divider)
def testDFSRandom():
print(divider + "Executing testDFSRandom()...")
tree = BinaryTree()
expectedNodes = [32, 16, 2, 5, 12, 30, 18, 50, 48, 53]
for number in randomNumbers:
tree.insert(Node(number))
assert (tree.size == len(randomNumbers))
nodes = tree.getNodesDFS()
print("Returned nodes = {}".format(nodesToString(nodes)))
print("Expected nodes = {}".format([n for n in expectedNodes]))
# Ensure that the order of the nodes is in the proper order for DFS
for i in range(0, len(nodes)):
assert (nodes[i].data == expectedNodes[i])
print("Passed" + divider)
def testFind():
print(divider + "Executing testFind()...")
tree = BinaryTree()
lowerBound = 0
upperBound = 100
# Insert values
for i in range(lowerBound, upperBound):
tree.insert(Node(i))
# Ensure all inserted values are found
for i in range(lowerBound, upperBound):
assert (tree.find(i, tree.root))
# Ensure values outside of range are not found
for i in range(-10000, lowerBound):
assert (not tree.find(i, tree.root))
for i in range(upperBound, 10000):
assert (not tree.find(i, tree.root))
print("Passed " + divider)
for index in range(len(sorted_list) - 1):
if sorted_list[index] > sorted_list[index + 1]:
return False
return True
# -----------------------------------------------------------------------------|
head_value = 15
head_node = Node(value = head_value)
binary_tree = BinaryTree(head = head_node)
my_random_list = [head_value]
# trial insert
for iteration in range(20000):
random_number = random.randint(0, 2000)
new_node = Node(value = random_number)
binary_tree.insert(new_node = new_node)
my_random_list.append(random_number)
# print("List was", my_random_list)
print("Sorting status: ", check_sort(my_random_list, binary_tree.sort()))
print(len(binary_tree))
# slow method. use numpy
my_random_list.remove(15)
print("Removed 15 = ", binary_tree.remove(15))
print("Sorting status: ", check_sort(my_random_list, binary_tree.sort()))
print(len(binary_tree))
import random
from binaryTree import BinaryTree
tree = BinaryTree()
#Insertion
values = [
5, 7, 10, 11, 12, 14, 17, 21, 22, 23, 30, 34, 35, 41, 52, 56, 61, 66, 70,
77, 82, 84, 89, 91, 99, 100
]
for value in values:
tree.insert(tree.root, value)
print('Initial tree:\n')
tree.printTree(tree.root)
print('\nTree after removal: \n')
#Removal
tree.remove(tree.root, 5)
tree.remove(tree.root, 10)
tree.remove(tree.root, 21)
tree.remove(tree.root, 99)
tree.printTree(tree.root)
def mirrorTree(root):
if not root:
return root
newRoot = root
helper(newRoot)
return newRoot
def helper(node):
if not node:
return
left = node.left
node.left = node.right
node.right = left
helper(node.left)
helper(node.right)
tree = BinaryTree(5)
tree.insert(3)
tree.insert(4)
tree.insert(6)
tree.insert(7)
display(tree.root)
mirroredTree = mirrorTree(tree.root)
print("Mirrored Tree")
display(mirroredTree)
# Get the result from left child
left_result = _get_kth_smallest_helper(root.left, k, pos)
# Check if you have already found the result
if left_result[0]:
return left_result
else:
# Update the position and see if it's kth smallest node.
# If so, return the True value.
pos = left_result[2] + 1
if pos == k:
return (True, root, pos)
# Get the result from the right child.
return _get_kth_smallest_helper(root.right, k, pos)
tree = BinaryTree(3)
tree.insert(1)
tree.insert(4)
tree.insert(2)
assert get_kth_smallest(tree.root, 1) == 1
tree = BinaryTree(5)
tree.insert(3)
tree.insert(2)
tree.insert(6)
tree.insert(4)
tree.insert(1)
assert get_kth_smallest(tree.root, 3) == 3