leetcode: Reverse Linked List(java)

標籤：leetcode   java   鏈表   

哎呀，糟了，leetcode又有easy題了，好久沒上，直接在網站上A了。題目就是把一個鏈表倒過來。。。

public ListNode reverseList(ListNode head) {        if(head == null)return null;                ListNode preNode = null;        ListNode curNode = head;        ListNode nxtNode = head.next;                while(curNode != null){            curNode.next = preNode;            preNode = curNode;            curNode = nxtNode;            if(curNode!=null){                nxtNode = curNode.next;            }else{                break;            }        }        return preNode;}

leetcode: Reverse Linked List(java)