doc: 2025-10-24打卡

147.insertion-sort-list.java

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+/*
+ * @lc app=leetcode id=147 lang=java
+ *
+ * [147] Insertion Sort List
+ */
+
+// @lc code=start
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     int val;
+ *     ListNode next;
+ *     ListNode() {}
+ *     ListNode(int val) { this.val = val; }
+ *     ListNode(int val, ListNode next) { this.val = val; this.next = next; }
+ * }
+ */
+class Solution {
+    public ListNode insertionSortList(ListNode head) {
+        ListNode dummy = new ListNode(0);
+        dummy.next = null;
+        ListNode t;
+        while(head != null) {
+            t = head;
+            head = head.next;
+            ListNode prev = dummy;
+            while(true) {
+                if(prev.next == null || prev.next.val > t.val) {
+                    t.next = prev.next;
+                    prev.next = t;
+                    break;
+                } else {
+                    prev = prev.next;
+                }
+            }
+        }
+        return dummy.next;
+
+    }
+}
+// @lc code=end
+