Class Solution

src/com/blankj/medium/_0002/Solution.java:13–42

author: Blankj blog : http://blankj.com time : 2017/10/11 desc :

 * </pre>
 */
public class Solution {
    public ListNode addTwoNumbers(ListNode l1, ListNode l2) {
        ListNode node = new ListNode(0);
        ListNode n1 = l1, n2 = l2, t = node;
        int sum = 0;
        while (n1 != null || n2 != null) {
            sum /= 10;
            if (n1 != null) {
                sum += n1.val;
                n1 = n1.next;
            }
            if (n2 != null) {
                sum += n2.val;
                n2 = n2.next;
            }
            t.next = new ListNode(sum % 10);
            t = t.next;
        }
        if (sum / 10 != 0) t.next = new ListNode(1);
        return node.next;
    }

    public static void main(String[] args) {
        Solution solution = new Solution();
        ListNode.print(solution.addTwoNumbers(
                ListNode.createTestData("[2,4,3]"),
                ListNode.createTestData("[5,6,4]")
        ));
    }
}