题解 | #链表中倒数最后k个结点#

import java.util.*;

/*
 * public class ListNode {
 *   int val;
 *   ListNode next = null;
 *   public ListNode(int val) {
 *     this.val = val;
 *   }
 * }
 */

public class Solution {
   int index = 0;
    ListNode ans ;
    public ListNode FindKthToTail (ListNode pHead, int k) {
        // write code here
        if(pHead!=null){
            FindKthToTail(pHead.next,k);
            index++;
            if(index == k){
                ans = pHead;
            }
        }
        return  ans;
    }
}