Leetcode, Add Two Numbers, Programming, Leetcode Medium, Java.
l1, if present l1 = l1.next; // Move to the next node in l1 } if (l2 != null) { sum += l2.val; // Add the value of the current node in l2, if present l2 = l2.next; // Move to the next node in l2 } ListNode result = new ListNode(sum % 10); // Create a new node with the digit value result.next =