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…

题目链接 这个题目很简单,归并而已,好久没练编程,居然忘了在使用自定义类型前,要进行初始化(new操作). class ListNode{ int val; ListNode next; ListNode(int x){ val = x; } }//在使用之前ListNode得next变量前需要进行初始化:ListNode node = new ListNode(1);a = node.next;a = new ListNode(2);//上面是不能通过node找到刚刚初始化的a, 只有通过下面…

这是悦乐书的第276次更新,第292篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第144题(顺位题号是633).给定一个非负整数c,判断是否存在两个整数a和b,使得a的平方与b的平方之和等于c.例如: 输入:5 输出:true 说明:1 x 1 + 2 x 2 = 5 输入:3 输出:false 本次解题使用的开发工具是eclipse,jdk使用的版本是1.8,环境是win7 64位系统,使用Java语言编写和测试. 02 第一种解法 暴力解法,直接使用两层for…

2. Add Two Numbers(中等) /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode* addTwoNumbers(ListNode* l1, ListNode* l2) { ListNode…

2. Add Two Numbers 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…

# Title Solution Acceptance Difficulty Frequency     1 Two Sum       44.5% Easy     2 Add Two Numbers       31.7% Medium     3 Longest Substring Without Repeating Characters       28.8% Medium     4 Median of Two Sorted Arrays       27.2% Hard     5…

题目原文: 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…

题目: 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 num…

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…

题目: 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 -&…