https://blog.youkuaiyun.com/sinat_35154996zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/sinat_35154996/article/details/75221053https://blog.youkuaiyun.com/sinat_35154996/article/details/75221053sinat_35154996Mon, 17 Jul 2017 11:12:00 +08003->8->11->15->null，2->null， 返回 1->2->3->8->11->15->null。        具体思想就是新建一个链表，然后比较两个链表中的元素值，把较小的那个链到新链表中，由于两个输入链表的长度可能不同，所以最终会有一个链表先完成插入所有元素，则直接另一个未完成的链表]]>https://blog.youkuaiyun.com/sinat_35154996/article/details/75220041https://blog.youkuaiyun.com/sinat_35154996/article/details/75220041sinat_35154996Mon, 17 Jul 2017 10:33:20 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75209062https://blog.youkuaiyun.com/sinat_35154996/article/details/75209062sinat_35154996Sun, 16 Jul 2017 19:17:05 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75208514https://blog.youkuaiyun.com/sinat_35154996/article/details/75208514sinat_35154996Sun, 16 Jul 2017 17:48:06 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75207248https://blog.youkuaiyun.com/sinat_35154996/article/details/75207248sinat_35154996Sun, 16 Jul 2017 16:01:20 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75144019https://blog.youkuaiyun.com/sinat_35154996/article/details/75144019sinat_35154996Sat, 15 Jul 2017 09:55:36 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75065238https://blog.youkuaiyun.com/sinat_35154996/article/details/75065238sinat_35154996Thu, 13 Jul 2017 15:07:19 +0800 4 XII -> 12 XXI -> 21 XCIX -> 99 罗马数转化成数字问题，我们需要对于罗马数字很熟悉才能完成转换。以下截自百度百科： 罗马数字是最早的数字表示方式，比阿拉伯数字早2000多年，起源于罗马。 如今我们最常见的罗马数字]]>https://blog.youkuaiyun.com/sinat_35154996/article/details/75046114https://blog.youkuaiyun.com/sinat_35154996/article/details/75046114sinat_35154996Thu, 13 Jul 2017 10:54:43 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/75044241https://blog.youkuaiyun.com/sinat_35154996/article/details/75044241sinat_35154996Thu, 13 Jul 2017 10:13:31 +080010->4->5, tail connects to node index 1，返回 true 思路：      使用两个指针，初始时两个指针均指向链表头位置，然后一个指针每次走两步，一个指针每次走一步，如果在循环过程中遇到两个指针相等，则说明有循环返回true。如果出现一个指针无法继续往下走，则退出循环返回false]]>https://blog.youkuaiyun.com/sinat_35154996/article/details/75041057https://blog.youkuaiyun.com/sinat_35154996/article/details/75041057sinat_35154996Wed, 12 Jul 2017 20:56:33 +08002->3->null，这个翻转后的链表为3->2->1->null  分析： /**  * Definition of ListNode  *  * class ListNode {  * public:  *     int val;  *     ListNode *next;  *  *     ListN]]>https://blog.youkuaiyun.com/sinat_35154996/article/details/75040168https://blog.youkuaiyun.com/sinat_35154996/article/details/75040168sinat_35154996Wed, 12 Jul 2017 19:23:49 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74784323https://blog.youkuaiyun.com/sinat_35154996/article/details/74784323sinat_35154996Sat, 08 Jul 2017 10:44:46 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74784129https://blog.youkuaiyun.com/sinat_35154996/article/details/74784129sinat_35154996Sat, 08 Jul 2017 10:13:27 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74640870https://blog.youkuaiyun.com/sinat_35154996/article/details/74640870sinat_35154996Fri, 07 Jul 2017 11:17:34 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74625818https://blog.youkuaiyun.com/sinat_35154996/article/details/74625818sinat_35154996Fri, 07 Jul 2017 09:15:07 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74556792https://blog.youkuaiyun.com/sinat_35154996/article/details/74556792sinat_35154996Thu, 06 Jul 2017 15:35:04 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74550536https://blog.youkuaiyun.com/sinat_35154996/article/details/74550536sinat_35154996Thu, 06 Jul 2017 15:07:25 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74523377https://blog.youkuaiyun.com/sinat_35154996/article/details/74523377sinat_35154996Thu, 06 Jul 2017 10:20:46 +08001->5->null 和 5->9->2->null，返回 8->0->8->null /** * Definition for singly-linked list. * struct Lis]]>https://blog.youkuaiyun.com/sinat_35154996/article/details/74479720https://blog.youkuaiyun.com/sinat_35154996/article/details/74479720sinat_35154996Wed, 05 Jul 2017 18:53:40 +0800https://blog.youkuaiyun.com/sinat_35154996/article/details/74330691https://blog.youkuaiyun.com/sinat_35154996/article/details/74330691sinat_35154996Tue, 04 Jul 2017 15:04:12 +0800