LinkedList2.py

fromrandomimportrandint

classNode:
def__init__(self, value=None) ->None:
self.value=value
self.next=None

def__str__(self) ->str:
returnstr(self.value)


classLinkedList:
def__init__(self) ->None:
self.head=None
self.tail=None

def__iter__(self):
node=self.head
whilenode:
yieldnode
node=node.next

def__str__(self) ->str:
values= [str(x.value) forxinself]
return' -> '.join(values)

def__len__(self):
result=0
node=self.head
whilenode:
result+=1
node=node.next
returnresult

defadd(self, value):
ifself.headisNone:
newNode=Node(value)
self.head=newNode
self.tail=newNode
else:
self.tail.next=Node(value)
self.tail=self.tail.next
returnself.tail

defgenerate(self, n, min_value, max_value):
self.head=None
self.tail=None
foriinrange(n):
self.add(randint(min_value, max_value))
returnself

newLL=LinkedList()
newLL.generate(10, 0, 99)
print(newLL)
print(len(newLL))