/*AddTwoNumbersII.java

Add Two Numbers II

You have two numbers represented by a linked list, where each node contains a single digit. The digits are stored in forward order, such that the 1's digit is at the head of the list. Write a function that adds the two numbers and returns the sum as a linked list.

Example

Given 6->1->7 + 2->9->5. That is, 617 + 295.

Return 9->1->2. That is, 912.

Tags Linked List High Precision

*/

public class AddTwoNumbersII {

/**

* @param l1: the first list

* @param l2: the second list

* @return: the sum list of l1 and l2

*/

public ListNode addLists2(ListNode l1, ListNode l2) {

// write your code here

}

public ListNode reverse(ListNode head) {

ListNode dummy = new ListNode(0);

ListNode node = dummy;

while (head != null) {

ListNode tmp = head.next;

dummy.next = head;

head = tmp;

}

node.next = null;

}

}