剑指 Offer 06. 从尾到头打印链表

输入一个链表的头节点,从尾到头反过来返回每个节点的值(用数组返回)。

示例 1:

输入:head = [1,3,2]
输出:[2,3,1]
 
限制:

0 <= 链表长度 <= 10000

我的解答

/**
 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) { val = x; }
 * }
 */
class Solution {
    public int[] reversePrint(ListNode head) {
        List<Integer> list = new ArrayList<>();
        while (head != null){
            list.add(head.val);
            head = head.next;
        }
        int a[] = new int[list.size()];
        for (int i = 0; i < list.size(); i++){
            a[i] = list.get(list.size()-1-i);
        }
        return a;
    }
}

posted @ 2021-03-03 20:23  锖兔真菰  阅读(34)  评论(0编辑  收藏  举报