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. Your 阅读全文
posted @ 2018-03-09 13:15 真的是从入门开始 阅读(123) 评论(0) 推荐(0) 编辑