二刷876

Author: diguage

docs/0876-middle-of-the-linked-list.adoc

@@ -48,11 +48,29 @@ image::images/0876-02.png[{image_attr}]
 
 image::images/0876-03.png[{image_attr}]
 
+image::images/0876-04.gif[{image_attr}]
+
 [[src-0876]]
+[tabs]
+====
+一刷::
++
+--
 [{java_src_attr}]
 ----
 include::{sourcedir}/_0876_MiddleOfTheLinkedList.java[tag=answer]
 ----
+--
+
+二刷::
++
+--
+[{java_src_attr}]
+----
+include::{sourcedir}/_0876_MiddleOfTheLinkedList_2.java[tag=answer]
+----
+--
+====
 
 == 参考资料
 

docs/images/0876-04.gif

@@ -615,6 +615,11 @@
 |{doc_base_url}/0205-isomorphic-strings.adoc[题解]
 |❎哈希映射
 
+|{counter:codes}
+|{leetcode_base_url}/middle-of-the-linked-list/[876. Middle of the Linked List^]
+|{doc_base_url}/0876-middle-of-the-linked-list.adoc[题解]
+|✅快慢指针，思路OK，注意处理细节。
+
 |===
 
 截止目前，本轮练习一共完成 {codes} 道题。

logbook/202406.adoc

@@ -0,0 +1,22 @@
+package com.diguage.algo.leetcode;
+
+import com.diguage.algo.util.ListNode;
+
+public class _0876_MiddleOfTheLinkedList_2 {
+  // tag::answer[]
+  /**
+   * 快慢指针
+   *
+   * @author D瓜哥 · https://www.diguage.com
+   * @since 2024-09-15 23:20:35
+   */
+  public ListNode middleNode(ListNode head) {
+    ListNode slow = head, fast = head;
+    while (fast != null && fast.next != null) {
+      slow = slow.next;
+      fast = fast.next.next;
+    }
+    return slow;
+  }
+  // end::answer[]
+}