两个用链表代表的整数,其中每个节点包含一个数字.数字存储按照在原来整数中相反的顺序,使得第一个数字位于链表的开头.写出一个函数将两个整数相加,用链表形式返回和. Solution:建立一个新链表C,然后把输入的两个链表从头往后查,每两个相加,添加一个新节点到新链表C后面, 问题注意点1就是要进位问题.2. 最高位的进位问题要最后特殊处理 . public ListNode addLists(ListNode l1, ListNode l2) { ListNode dummy = new List…

题目内容 题目来源:LeetCode You are given two non-empty linked lists representing two non-negative integers. 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. You may ass…

题目说明: 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…

Add Two Numbers这个问题的意思是,提供两条链表,每条链表表示一个十进制整数,其每一位对应链表的一个结点.比如345表示为链表5->4->3.而我们需要做的就是将两条链表代表的整数加起来,并创建一个新的链表并返回,新链表代表加总值. 这个问题与算法无关,其主要是操作链表这一数据结构,以及两个大数的加法.由于没有规定链表的长度,这意味着链表代表的整数可以任意大,这样就不能先利用链表计算出对应的整数值,之后利用加总值重新生成链表.我们必须手动处理两个大数的加法. 要谨慎两个个位数的加总…

反向存储,从左往右加 ［抄题］: 你有两个用链表代表的整数,其中每个节点包含一个数字.数字存储按照在原来整数中相反的顺序,使得第一个数字位于链表的开头.写出一个函数将两个整数相加,用链表形式返回和.给出两个链表 3->1->5->null 和 5->9->2->null,返回 8->0->8->null [暴力解法]: 时间分析: 空间分析: ［思维问题］: 直接从左往右加就行,没看出来. 链表结构改变时要添加dummy,返回的是dummy.next…

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 ->…

add two numbers 看题一脸懵逼,看中文都很懵逼,链表怎么实现的,点了debug才看到一些代码 改一下,使本地可以跑起来 # Definition for singly-linked list. class ListNode: def __init__(self, x): self.val = x self.next = None class Solution: def addTwoNumbers(self, l1, l2): """ :type l1: List…

[LeetCode] Add Two Numbers 两个数字相加   You are given two non-empty linked lists representing two non-negative integers. 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…

You are given two non-empty linked lists representing two non-negative integers. 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. You may assume the two numbers…

You are given two linked lists representing two non-negative numbers. The most significant digit comes first and each of their nodes contain a single digit. Add the two numbers and return it as a linked list. You may assume the two numbers do not con…