【Leetcode】Add Two Numbers

public static ListNode addTwoNumbers(ListNode l1, ListNode l2) {		 
		 ListNode result = new ListNode(0);		
		 int flow = 0;
		 List
 
   res = new ArrayList
  
   (); while(l1!=null || l2!=null){ int l1Val = 0; int l2Val = 0; if(l1!=null){ l1Val = l1.val; } if(l2!=null){ l2Val = l2.val; } int curVal = l1Val + l2Val + flow > 10 ? (l1Val + l2Val + flow)/10: (l1Val + l2Val + flow)%10; int curFlow = l1Val + l2Val + flow >= 10?(l1Val + l2Val + flow)/10:0; flow = curFlow; l1 = l1.next; l2 = l2.next; res.add(curVal); } ListNode node = result; for(int i=0;i<=res.size()-2;i++){ node.val = res.get(i); node.next = new ListNode(res.get(i+1)); node = node.next; } return result; }