def enqueue(self, value):
new = Node(value)
if self.head is None:
self.head = new
self.tail = new
else:
new.set_next(self.head)
self.head = new
def add_followup(lst1, lst2):
if len(lst1) < len(lst2):
lst1, lst2 = lst2, lst1
for _ in range(len(lst1) - len(lst2)):
h = lst2.get_head()
n = Node(0)
n.set_next(h)
lst2.set_head(n)
_sum(lst1.get_head(), lst2.get_head())
def reverse_linked_list(new_list, original_list):
head = new_list
p = original_list
while (p != None):
n = Node(p.get_data())
if (head == None):
head = n
else:
n.set_next(head)
head = n
p = p.get_next()
return head
def partition(lst, nodex):
'''
Time Complexity = O(N)
Space Complexity = O(1)
'''
current = lst.get_head()
prev = Node()
if current.get_data() < nodex:
prev = current
current = current.get_next()
while current != None:
if current.get_data() < nodex:
tmp = current
current = current.get_next()
prev.set_next(current)
tmp.set_next(lst.get_head())
lst.set_head(tmp)
else:
prev = current
current = current.get_next()