From 9d7c18872b0b8fccefc70da3bc58501fcb93359c Mon Sep 17 00:00:00 2001
From: "hjeom.dev" <hjeom.dev@gmail.com>
Date: Mon, 1 Dec 2025 21:54:10 +0900
Subject: [PATCH] merge two sorted lists

---
 merge-two-sorted-lists/hjeomdev.java | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 merge-two-sorted-lists/hjeomdev.java

diff --git a/merge-two-sorted-lists/hjeomdev.java b/merge-two-sorted-lists/hjeomdev.java
new file mode 100644
index 0000000000..b8053ade0b
--- /dev/null
+++ b/merge-two-sorted-lists/hjeomdev.java
@@ -0,0 +1,28 @@
+/**
+ * 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 mergeTwoLists(ListNode list1, ListNode list2) {
+        ListNode list = new ListNode(-1);
+        ListNode result = list;
+        while (list1 != null && list2 != null) {
+            if (list1.val < list2.val) {
+                result.next = list1;
+                list1 = list1.next;
+            } else {
+                result.next = list2;
+                list2 = list2.next;
+            }
+            result = result.next;
+        }
+        result.next = list1 != null ? list1 : list2;
+        return list.next;
+    }
+}