原题地址:http://oj.leetcode.com/problems/swap-nodes-in-pairs/ 题意:将链表中的节点两两交换。Given 1->2->3->4, you should return the list as 2->1->4-> ...
Given a linked list, swap every two adjacent nodes and return its head. For example,Given gt gt gt , you should return the list as gt gt gt . Your algorithm should use only constant space. You maynotm ...
2012-11-19 17:07 0 3051 推荐指数:
原题地址:http://oj.leetcode.com/problems/swap-nodes-in-pairs/ 题意:将链表中的节点两两交换。Given 1->2->3->4, you should return the list as 2->1->4-> ...
题目: Given a linked list, swap every two adjacent nodes and return its head. For example, Given 1->2->3->4, you should return the list ...
问题:交换相邻的两个结点分析:建立新链表每次插入ret->next后在插入ret,需要在判断下若最后只有一个结点不需要交换,注意每次交换了结点要把尾结点的下一个指向空 class Sol ...
Given a linked list, swap every two adjacent nodes and return its head. You may not modify the values in the list's nodes, only nodes itself ...
题目描述 给定一个链表,两两交换其中相邻的节点,并返回交换后的链表。 示例: 说明: 你的算法只能使用常数的额外空间。 你不能只是单纯的改变节点内部 ...
题目:给定一个单链表,交换两个相邻的节点,且返回交换之后的头节点 举例: Given 1->2->3->4, you should return the list as 2-&g ...
Given the root of a binary tree and an integer distance. A pair of two different leaf nodes of a binary tree is said to be good if the length ...
Given a list of unique words. Find all pairs of distinct indices (i, j) in the given list, so that the concatenation of the two words, i.e. words ...