/**
* Definition for singly-linked list.
* function ListNode(val) {
* this.val = val;
* this.next = null;
* }
*/
function ListNode(val) {
this.val = val;
this.next = null;
}
var l1=new ListNode(9);
l1.next=new ListNode(9);
l1.next.next=new ListNode(9);
var l2=new ListNode(9);
l2.next=new ListNode(9);
l2.next.next=new ListNode(4);
var addTwoNumbers = function(l1, l2) {
var dummyHead = new ListNode(0);
var p = l1, q = l2, curr = dummyHead;
var carry = 0;
while (p !==null || q !== null) {
var x = (p !== null) ? p.val : 0;
var y = (q !== null) ? q.val : 0;
var sum = carry + x + y;
carry = parseInt(sum / 10);
curr.next = new ListNode(sum % 10);
curr = curr.next;
if (p !== null) p = p.next;
if (q !== null) q = q.next;
}
if (carry > 0) {
curr.next = new ListNode(carry);
}
return dummyHead.next;
};
var result=addTwoNumbers1(l1,l2);
console.log(result);