def reorderList(self, head):
"""
:type head: ListNode
:rtype: void Do not return anything, modify head in-place instead.
"""
t = head
a = []
while t:
a.append(t)
t = t.next
if len(a) < 3:
return
# print(a[1].next.val)
for i in range(0, len(a) // 2):
tmp = a[i].next
a[i].next = a[~i]
if tmp == a[~i]:
a[~i].next = None
else:
a[~i].next = tmp
tmp.next = None
test = False
if test:
from ListNode.ListNode import ListNode
ll = ListNode.make([1, 2, 3, 4, 5])
s = Solution()
print(s.reorderList(ll))
print(ll)
class Solution:
def insertionSortList(self, head):
"""
:type head: ListNode
:rtype: ListNode
"""
if head is None:
return head
out = []
while head:
out.append(head)
head = head.next
# print(out[-1].val)
out = sorted(out, key=lambda x: x.val)
# print([x.val for x in out])
for i in range(0, len(out) - 1):
out[i].next = out[i + 1]
out[len(out) - 1].next = None
return out[0]
test = False
if test:
from ListNode.ListNode import ListNode
ll = ListNode.make([5, 1, 2, 3, 4])
s = Solution()
print(s.insertionSortList(ll))