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breadordertraversal.py
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breadordertraversal.py
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class Node:
# A utility function to create a new node
def __init__(self ,key):
self.data = key
self.left = None
self.right = None
# Iterative Method to print the
# height of a binary tree
def printLevelOrder(root):
# Base Case
if root is None:
return
# Create an empty queue
# for level order traversal
queue = []
# Enqueue Root and initialize height
queue.append(root)
while(len(queue) > 0):
# Print front of queue and
# remove it from queue
print (queue[0].data)
node = queue.pop(0)
# Enqueue left child
if node.left is not None:
queue.append(node.left)
# Enqueue right child
if node.right is not None:
queue.append(node.right)
# Driver Program to test above function
root = Node(1)
root.left = Node(2)
root.right = Node(3)
root.left.left = Node(4)
root.left.right = Node(5)
print ("Level Order Traversal of binary tree is -")
printLevelOrder(root)