C++/代码:
反转链表
http://www.nowcoder.com/questionTerminal/75e878df47f24fdc9dc3e400ec6058ca
图片:
C++/代码:
class Solution {
public:
ListNode* ReverseList(ListNode* pHead) {
auto p = pHead; //定义一个新链表
ListNode* pre = NULL; //定义一个空链表
while (p){
auto Head = p->next;//定义一个Head结点
p->next = pre;
pre = p;
p = Head;
}
return pre;
}
};