题解 | #删除有序链表中重复的元素-I#
删除有序链表中重复的元素-I
https://www.nowcoder.com/practice/c087914fae584da886a0091e877f2c79
/**
* struct ListNode {
* int val;
* struct ListNode *next;
* ListNode(int x) : val(x), next(nullptr) {}
* };
*/
class Solution {
public:
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param head ListNode类
* @return ListNode类
*/
ListNode* deleteDuplicates(ListNode* head) {
if(!head || !head->next) return head;
bool DoNext = true;
ListNode *L = head,* R = head->next;
while (R) {
// 元素相等
DoNext = R->val == L->val ? false : true;
if(DoNext){ L->next = R; L = R;}
R = R->next;
}
if(!DoNext) L->next = nullptr;
return head;
}
};