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Rotate left and right done

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This commit is contained in:
Rafael 2017-07-05 20:37:47 +02:00
parent 3ead193f0e
commit 0b7d3a5c97
1 changed files with 29 additions and 6 deletions
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35
data_structures/AVL/AVL.py
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@ -49,10 +49,6 @@ class AVL:
self.root = None self.root = None
self.size = 0 self.size = 0
# def __init__(self, root):
# self.root = root
# self.size = 1
def insert(self, value): def insert(self, value):
node = Node(value) node = Node(value)
if self.root is None: if self.root is None:
@ -91,13 +87,40 @@ class AVL:
break break
def rebalance(self, node): def rebalance(self, node):
if (node.getRight().getHeight() -
node.getLeft.getHeight() > 1):
if (node.getRight().getHeight() >
node.getLeft.getHeight()):
pass
else:
pass
pass
elif (node.getRight().getHeight() -
node.getLeft.getHeight() > 2):
if (node.getRight().getHeight() >
node.getLeft.getHeight()):
pass
else:
pass
pass
pass pass
def rotate_left(self, node): def rotate_left(self, node):
pass # TODO: is this pythonic enought?
aux = node.getLabel()
node = aux.getRight()
node.setHeight(node.getHeight() - 1)
node.setLeft(Node(aux))
node.getLeft().setHeight(node.getHeight() + 1)
node.getRight().setHeight(node.getRight().getHeight() - 1)
def rotate_right(self, node): def rotate_right(self, node):
pass aux = node.getLabel()
node = aux.getLeft()
node.setHeight(node.getHeight() - 1)
node.setRight(Node(aux))
node.getLeft().setHeight(node.getHeight() + 1)
node.getLeft().setHeight(node.getLeft().getHeight() - 1)
def double_rotate_left(self, node): def double_rotate_left(self, node):
pass pass