首页 > 代码库 > [leetcode]Add Two Numbers @ Python
[leetcode]Add Two Numbers @ Python
原题地址:https://oj.leetcode.com/problems/add-two-numbers/
题意:
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4)
Output: 7 -> 0 -> 8
解题思路:链表的操作。
代码:
# Definition for singly-linked list.# class ListNode:# def __init__(self, x):# self.val = x# self.next = Noneclass Solution: # @return a ListNode def addTwoNumbers(self, l1, l2): if l1 == None: return l2 if l2 == None: return l1 flag = 0 dummy = ListNode(0); p = dummy while l1 and l2: p.next = ListNode((l1.val+l2.val+flag) % 10) flag = (l1.val+l2.val+flag) / 10 l1 = l1.next; l2 = l2.next; p = p.next if l2: while l2: p.next = ListNode((l2.val+flag) % 10) flag = (l2.val+flag) / 10 l2 = l2.next; p = p.next if l1: while l1: p.next = ListNode((l1.val+flag) % 10) flag = (l1.val+flag) / 10 l1 = l1.next; p = p.next if flag == 1: p.next = ListNode(1) return dummy.next
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。