325 add two nunber

class Solution {

    public ListNode oddEvenList(ListNode head) {

        if(head==null) return null;

        ListNode odd=head,even=head.next,evenHead=even;

        while(even!=null&&even.next!=null){

            odd.next=even.next;

            odd=odd.next;

            even.next=odd.next;

            even=even.next;

        }

        odd.next=evenHead;

        return head;

    }

}

标签：even,head,ListNode,nunber,two,next,add,null,odd
来源： https://www.cnblogs.com/LLflag1/p/16468576.html