题解 | #倒数第k头牛#
倒数第k头牛
https://www.nowcoder.com/practice/1a1f85ae84b442b3b33727684141104d
import java.util.*; /* * public class ListNode { * int val; * ListNode next = null; * public ListNode(int val) { * this.val = val; * } * } */ public class Solution { /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param head ListNode类 * @param k int整型 * @return ListNode类 */ public ListNode find_kth_cow (ListNode head, int k) { // write code here int count=1; ListNode root=head; while(root!=null){ count++; root=root.next; } count=count-k; while(count>1){ head=head.next; count--; } return head; } }