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
Related Topics
import java.util.Stack;
public class CongWeiDaoTouDaYinLianBiaoLcof{
public static void main(String[] args) {
Solution solution = new CongWeiDaoTouDaYinLianBiaoLcof().new Solution();
}
//leetcode submit region begin(Prohibit modification and deletion)
/**
* Definition for singly-linked list.
* public class ListNode {
* int val;
* ListNode next;
* ListNode(int x) { val = x; }
* }
*/
class Solution {
public int[] reversePrint(ListNode head) {
Stack<ListNode> stack = new Stack<ListNode>();
ListNode p = head;
while(p != null){
stack.push(p);
p = p.next;
}
int n = stack.size();
int res[] = new int[n];
for(int i = 0; i < n; i++){
res[i] = stack.pop().val;
}
return res;
}
}
//leetcode submit region end(Prohibit modification and deletion)
}
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