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; } };