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leetcode19:删除链表倒数第 n 个结点 #16

Description

@sisterAn

给定一个链表,删除链表的倒数第 n 个节点,并且返回链表的头结点。

示例:

给定一个链表: 1->2->3->4->5,  n = 2.
当删除了倒数第二个节点后,链表变为 1->2->3->5.

说明:

给定的 n 保证是有效的。

进阶:

你能尝试使用一趟扫描实现吗?

附leetcode地址:leetcode

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