Leetcode, Add Two Numbers, Programming, Leetcode Medium, Java.
corresponding digits, and managing the carry for sums greater than 9. Java Code: class Solution { public ListNode addTwoNumbers(ListNode l1, ListNode l2) { ListNode dummy = new ListNode(0); ListNode current = dummy; int carry = 0; while (l1 != null || l2 != null) { int x = (l1 != null) ? l1.val :