class Solution:
def findKthToLast(self, head, k):
def findSize(head):
size = 0
while head is not None:
size += 1
head = head.next
return size
n = findSize(head)
ctr = 0
while head is not None:
if (ctr == n - k):
return head.val
ctr += 1
head = head.next
return None
if __name__ == '__main__':
ls = LinkedList()
for i in [1, 3, 5, 2, 4, 2, 3, 5, 6]:
node = Node(i)
ls.addNode(node)
s = Solution()
k = int(input("Enter the value of K -\n"))
ans = s.findKthToLast(ls.head, k)
print("{} element from the last is {}".format(k, ans))
import types
from typing import List
import collections
from slist import SList
from node import Node
from linkedList import LinkedList
def pairNodeSwap(node: Node):
cur = node
while cur.val and cur.next.val:
cur.val, cur.next.val = cur.next.val, cur.val
cur = cur.next.next
return cur
myList = LinkedList()
myList.addNode(5)
myList.addNode(7)
myList.addNode(8)
myList.addNode(9)
myList.printNode()
final = Node(1) if start.val >= 10 else Node(0)
start.val = start.val % 10 if start.val >= 10 else start.val
answer = final
while start is not None and start.next is not None:
if start.next.val >= 10:
start.val += 1
start.next.val = start.next.val % 10
final.next = start
final = final.next
start = start.next
return answer.next if answer.val == 0 else answer
if __name__ == '__main__':
ls1 = LinkedList()
ls2 = LinkedList()
for i in [9, 9, 7, 1, 6]:
node = Node(i)
ls1.addNode(node)
for i in [9, 9, 5]:
node = Node(i)
ls2.addNode(node)
#res = sumReverseOrder(ls1.head, ls2.head)
res = sumForwardOrder(ls1, ls2)
while res:
print(str(res.val) + " -> ", end="")
res = res.next
print("None\n")