摘要: 原题: Given a linked list, swap every two adjacent nodes and return its head. Example: Given 1->2->3->4, you should return the list as 2->1->4->3. Note: 阅读全文
posted @ 2018-09-26 16:21 slarker 阅读(350) 评论(0) 推荐(0) 编辑