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Reverse Linked List
/** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */public class Solution { public ListNode reverseList(ListNode head) { if(null == head || null == head.next) return head; ListNode last = head; while(null != last.next) last = last.next; last.next = head; ListNode tmp; while(head.next != last){ tmp = head.next; head.next = tmp.next; tmp.next = last.next; last.next = tmp; } head.next = null; return last; }} 转载地址：http://xvuni.baihongyu.com/