Reverse a linked list.

反转一个链表。

youdao

The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.

将两个数相加的结果放在新的链表中，最后返回这个新的链表就好。

youdao

The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.

将两个数相加的结果放在新的链表中，最后返回这个新的链表就好。

youdao