length of list

Author: raianmol172

length of the list.py

@@ -0,0 +1,35 @@
+class Node:
+    def __init__(self, data):
+        self.data = data
+        self.next = None
+
+
+class LinkedList:
+    def __init__(self):
+        self.head = None
+
+    def countNode(self):
+        temp = self.head
+        count = 0
+        while temp is not None:
+            count = count + 1  # we can also write it like count += 1
+            temp = temp.next
+        return count
+
+    def printList(self):
+        temp = self.head
+        while temp is not None:
+            print(temp.data)
+            temp = temp.next
+
+
+l1 = LinkedList()
+l1.head = Node(10)
+l2 = Node(20)
+l3 = Node(30)
+l4 = Node(40)
+l1.head.next = l2
+l2.next = l3
+l3.next = l4
+l1.printList()
+print("the length of the linked list is :", l1.countNode())