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;
* };
*/
/**
* 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
*/
struct ListNode* deleteDuplicates(struct ListNode* head ) {
if(head==NULL || head->next==NULL){
return head;
}
// write code here
struct ListNode* temp = head;
struct ListNode* p;
while(temp->next){ // 确保next存在
if(temp->val == temp->next->val){
p = temp->next;
temp->next = temp->next->next;
free(p);
}else{
temp = temp->next;
}
}
return head;
}

