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 data-struct

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sort.py

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class BTree:

def __init__(self,value):

self.left=None

self.data=value

self.right=None

def insertLeft(self,value):

self.left=BTree(value)

return self.left

def insertRight(self,value):

self.right=BTree(value)

return self.right

def show(self):

print self.data

def inorder(node):

if node.data:

if node.left:

inorder(node.left)

node.show()

if node.right:

inorder(node.right)

def rinorder(node):

if node.data:

if node.right:

rinorder(node.right)

node.show()

if node.left:

rinorder(node.left)

def insert(node,value):

if value > node.data:

if node.right:

insert(node.right,value)

else:

node.insertRight(value)

else:

if node.left:

insert(node.left,value)

else:

node.insertLeft(value)

if __name__ == "__main__":

l=[88,11,2,33,22,4,55,33,221,34]

Root=BTree(l[0])

node=Root

for i in range(1,len(l)):

insert(Root,l[i])

print "1---->10"

inorder(Root)

print "10--->1"

rinorder(Root)