sdausxc的专栏

原题：Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.题目大意：对于k个有序的链表，将其合并为一个有序的链表通过归并的方法进行排序：/** * Definition for singly-linked list. * struct

题目大意：给定一个链表，交换其中相邻的2个元素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 as 2->1->4->3.Your algorithm should u

题意：根据k的大小进行循环移位Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.If the number of nodes is not a multiple of k then left-out nodes in the end sho

题目：从m到n进行链表旋转Reverse a linked list from position m to n. Do it in-place and in one-pass.For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4,return 1->4->3->2->5->NULL.Note:Given