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contribution guidelines checks (#1787)

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* spelling corrections

* review

* improved documentation, removed redundant variables, added testing

* added type hint

* camel case to snake case

* spelling fix

* review

* python --> Python # it is a brand name, not a snake

* explicit cast to int

* spaces in int list

* "!= None" to "is not None"

* Update comb_sort.py

* various spelling corrections in documentation & several variables naming conventions fix

* + char in file name

* import dependency - bug fix

Co-authored-by: John Law <johnlaw.po@gmail.com>
This commit is contained in:
matkosoric
2020-03-04 13:40:28 +01:00
committed by GitHub
parent 2b19e84767
commit 7f04e5cd34
57 changed files with 198 additions and 198 deletions
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36
data_structures/binary_tree/binary_search_tree.py
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@ -28,16 +28,16 @@ class BinarySearchTree:
"""
return str(self.root)
def __reassign_nodes(self, node, newChildren):
if newChildren is not None: # reset its kids
newChildren.parent = node.parent
def __reassign_nodes(self, node, new_children):
if new_children is not None: # reset its kids
new_children.parent = node.parent
if node.parent is not None: # reset its parent
if self.is_right(node): # If it is the right children
node.parent.right = newChildren
node.parent.right = new_children
else:
node.parent.left = newChildren
node.parent.left = new_children
else:
self.root = newChildren
self.root = new_children
def is_right(self, node):
return node == node.parent.right
@ -117,39 +117,39 @@ class BinarySearchTree:
elif node.right is None: # Has only left children
self.__reassign_nodes(node, node.left)
else:
tmpNode = self.get_max(
tmp_node = self.get_max(
node.left
) # Gets the max value of the left branch
self.remove(tmpNode.value)
) # Gets the max value of the left branch
self.remove(tmp_node.value)
node.value = (
tmpNode.value
) # Assigns the value to the node to delete and keesp tree structure
tmp_node.value
) # Assigns the value to the node to delete and keep tree structure
def preorder_traverse(self, node):
if node is not None:
yield node # Preorder Traversal
yield node # Preorder Traversal
yield from self.preorder_traverse(node.left)
yield from self.preorder_traverse(node.right)
def traversal_tree(self, traversalFunction=None):
def traversal_tree(self, traversal_function=None):
"""
This function traversal the tree.
You can pass a function to traversal the tree as needed by client code
"""
if traversalFunction is None:
if traversal_function is None:
return self.preorder_traverse(self.root)
else:
return traversalFunction(self.root)
return traversal_function(self.root)
def postorder(curr_node):
"""
postOrder (left, right, self)
"""
nodeList = list()
node_list = list()
if curr_node is not None:
nodeList = postorder(curr_node.left) + postorder(curr_node.right) + [curr_node]
return nodeList
node_list = postorder(curr_node.left) + postorder(curr_node.right) + [curr_node]
return node_list
def binary_search_tree():