Palindromic Substrings - PR 피드백 반영

Author: forest000014

merge-two-sorted-lists/forest000014.java

@@ -12,15 +12,7 @@ public ListNode mergeTwoLists(ListNode list1, ListNode list2) {
         ListNode head = new ListNode();
         ListNode curr = head;
 
-        while (true) {
-            if (list1 == null) {
-                curr.next = list2;
-                break;
-            } else if (list2 == null) {
-                curr.next = list1;
-                break;
-            }
-
+        while (list1 != null && list2 != null) {
             if (list1.val <= list2.val) {
                 curr.next = new ListNode(list1.val);
                 curr = curr.next;
@@ -32,6 +24,12 @@ public ListNode mergeTwoLists(ListNode list1, ListNode list2) {
             }
         }
 
+        if (list1 == null) {
+            curr.next = list2;
+        } else if (list2 == null) {
+            curr.next = list1;
+        }
+
         return head.next;
     }
 }