From 26d4cd38713bd4be2f142f3c26093f9812b785c4 Mon Sep 17 00:00:00 2001 From: huangge1199 Date: Mon, 7 Jun 2021 13:17:14 +0800 Subject: [PATCH] =?UTF-8?q?=E5=89=91=E6=8C=87=20Offer=2022:=E9=93=BE?= =?UTF-8?q?=E8=A1=A8=E4=B8=AD=E5=80=92=E6=95=B0=E7=AC=ACk=E4=B8=AA?= =?UTF-8?q?=E8=8A=82=E7=82=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../LianBiaoZhongDaoShuDiKgeJieDianLcof.java | 54 +++++++++++++++++++ .../cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.md | 13 +++++ 2 files changed, 67 insertions(+) create mode 100644 src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.java create mode 100644 src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.md diff --git a/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.java b/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.java new file mode 100644 index 0000000..3f4835e --- /dev/null +++ b/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.java @@ -0,0 +1,54 @@ +//输入一个链表,输出该链表中倒数第k个节点。为了符合大多数人的习惯,本题从1开始计数,即链表的尾节点是倒数第1个节点。 +// +// 例如,一个链表有 6 个节点,从头节点开始,它们的值依次是 1、2、3、4、5、6。这个链表的倒数第 3 个节点是值为 4 的节点。 +// +// +// +// 示例: +// +// +//给定一个链表: 1->2->3->4->5, 和 k = 2. +// +//返回链表 4->5. +// Related Topics 链表 双指针 +// 👍 199 👎 0 + +package leetcode.editor.cn; + +import com.code.leet.entiy.ListNode; + +//剑指 Offer 22:链表中倒数第k个节点 +public class LianBiaoZhongDaoShuDiKgeJieDianLcof{ + public static void main(String[] args) { + //测试代码 + Solution solution = new LianBiaoZhongDaoShuDiKgeJieDianLcof().new Solution(); + } + //力扣代码 + //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 ListNode getKthFromEnd(ListNode head, int k) { + ListNode p; + int count = 1; + p = head; + while (p.next != null) { + count++; + p = p.next; + } + p = head; + for (int i = 0; i < count - k; i++) { + p = p.next; + } + return p; + } +} +//leetcode submit region end(Prohibit modification and deletion) + +} \ No newline at end of file diff --git a/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.md b/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.md new file mode 100644 index 0000000..24c0773 --- /dev/null +++ b/src/main/java/leetcode/editor/cn/LianBiaoZhongDaoShuDiKgeJieDianLcof.md @@ -0,0 +1,13 @@ +

输入一个链表,输出该链表中倒数第k个节点。为了符合大多数人的习惯,本题从1开始计数,即链表的尾节点是倒数第1个节点。

+ +

例如,一个链表有 6 个节点,从头节点开始,它们的值依次是 1、2、3、4、5、6。这个链表的倒数第 3 个节点是值为 4 的节点。

+ +

 

+ +

示例:

+ +
+给定一个链表: 1->2->3->4->5, 和 k = 2.
+
+返回链表 4->5.
+
Related Topics
  • 链表
  • 双指针
  • \n
  • 👍 199
  • 👎 0
  • \ No newline at end of file