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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; } };
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; } };