24. Swap Nodes in Pairs
摘要：
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. 交换两个节 阅读全文
posted @ 2016-06-01 21:06 不小的文 阅读(119) 评论(0) 推荐(0) 编辑
