题目描述
输入两个单调递增的链表,输出两个链表合成后的链表,当然我们需要合成后的链表满足单调不减规则。
# -*- coding:utf-8 -*-
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
# 返回合并后列表
def Merge(self, pHead1, pHead2):
# write code here
p = mergeHead = ListNode(0)
while pHead1 and pHead2:
if pHead1.val>=pHead2.val:
mergeHead.next = pHead2
pHead2 = pHead2.next
else:
mergeHead.next = pHead1
pHead1 = pHead1.next
mergeHead = mergeHead.next
if pHead1:
mergeHead.next = pHead1
if pHead2:
mergeHead.next = pHead2
return p.next