AcWing 29. 删除链表中重复的节点
原题链接
中等
作者:
Samuely
,
2022-12-13 00:54:42
,
所有人可见
,
阅读 198
/**
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode(int x) : val(x), next(NULL) {}
* };
*/
class Solution {
public:
ListNode* deleteDuplication(ListNode* head) {
ListNode *dummy = new ListNode(-1);
dummy->next = head;
ListNode *p = dummy;
while(p->next != NULL)
{
ListNode *q = p->next;
while(q->next != NULL && q->next->val == q->val) q = q->next;
if (q == p->next)
{
p = p->next;
q = q->next;
}
else p->next = q->next;
}
return dummy->next;
}
};