# Definition for singly-linked list.
class ListNode(object):
def __init__(self, x):
self.val = x
self.next = None
class Solution(object):
def mergeTwoLists(self, l1, l2):
"""
:type l1: ListNode
:type l2: ListNode
:rtype: ListNode
"""
res=ListNode(0)
tmp=res
while l1 != None and l2 != None:
if l1.val < l2.val:
tmp.next=l1
l1=l1.next
else:
tmp.next = l2
l2 = l2.next
tmp = tmp.next
if l1 != None:
tmp.next = l1
else:
tmp.next = l2
return res.next
近期评论