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- /**
- * Definition for singly-linked list.
- * public class ListNode {
- * int val;
- * ListNode next;
- * ListNode(int x) { val = x; }
- * }
- */
- class Solution {
- public ListNode mergeTwoLists(ListNode l1, ListNode l2) {
-
- ListNode node = new ListNode(0);
-
- ListNode head = node;
-
- while(l1 != null || l2 != null){
-
- if(l2 == null || (l1 != null && l2.val >= l1.val)){
-
- node.next = l1;
-
- l1 = l1.next;
-
- node = node.next;
-
- }
-
- else if (l1 == null || (l2 != null && l1.val >= l2.val)){
-
- node.next = l2;
-
- l2 = l2.next;
-
- node = node.next;
-
- }
-
-
- }
-
- return head.next;
- }
- }
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