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Code Circular Linked List

Sorted insertion in circular linked list in python

Python program for Sorted insertion in circular linked list. Here more information.

#  Python 3 program for
#  Sorted insert for circular linked list
class LinkNode :
	def __init__(self, data) :
		self.data = data
		self.next = None
	

class CircularLinkedList :
	def __init__(self) :
		self.head = None
		self.tail = None
	
	def insert(self, value) :
		node = LinkNode(value)
		if (self.head == None) :
			#  First node of linked list
			self.head = node
			self.tail = node
			node.next = node
		elif (self.head.data >= value) :
			#  Add node at beginning of linked list
			node.next = self.head
			self.head = node
			self.tail.next = node
		elif (self.tail.data <= value) :
			#  Add node at last position
			self.tail.next = node
			self.tail = node
			node.next = self.head
		else :
			#  When adding a new node at intermediate position
			temp = self.head
			#  Find valid sorted position to add new node
			while (temp != None and temp.next.data < value) :
				#  Visit to next node
				temp = temp.next
			
			#  Add new node 
			node.next = temp.next
			temp.next = node
		
	
	#  Display node element of circular linked list
	def display(self) :
		if (self.head == None) :
			print(" Empty Linked List")
		else :
			print(" Circular Linked List Element ")
			#  First node of linked list
			print("  ", self.head.data, end = "")
			temp = self.head.next
			#  Display linked list node
			while (temp != None and temp != self.head) :
				#  Display node value
				print("  ", temp.data, end = "")
				#  Visit to next node
				temp = temp.next
			
		
	

def main() :
	cll = CircularLinkedList()
	#  Add linked list node
	cll.insert(8)
	cll.insert(17)
	cll.insert(26)
	cll.insert(25)
	cll.insert(14)
	cll.insert(5)
	cll.insert(-3)
	cll.insert(62)
	cll.insert(5)
	cll.insert(34)
	#  Display node value
	cll.display()

if __name__ == "__main__": main()
Sorted insertion in circular linked list

Output

 Circular Linked List Element
   -3   5   5   8   14   17   25   26   34   62

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