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package leetcode;

public class AddTwoNumbers {

public static void main(String[] args) {

ListNode l1= new ListNode(2);

ListNode l2= new ListNode(5);

AddTwoNumbers addTwoNumbers= new AddTwoNumbers();

ListNode l3= addTwoNumbers.addTwoNumbers(l1, l2);

while (l3 != null) {

System.out.format("%d", l3.val);

l3 = l3.next;

}

}

public ListNode addTwoNumbers(ListNode l1, ListNode l2) {

int carry =0;

ListNode newList = new ListNode(0);

ListNode Newhead = newList;

while(l1 != null || l2 != null){

if(l1 != null){

carry += l1.val;

l1 = l1.next;

}

if(l2 != null){

carry += l2.val;

l2 = l2.next;

}

Newhead.next = new ListNode(carry%10);

Newhead = Newhead.next;

carry /= 10;

}

if(carry==1)

Newhead.next=new ListNode(1);

return newList.next;

}

}

/*class ListNode {

int val;

ListNode next;

ListNode(int x) {

val = x;

next = null;

}

}*/