题解 | #删除链表的节点# | C++
删除链表的节点
https://www.nowcoder.com/practice/f9f78ca89ad643c99701a7142bd59f5d
/** * 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 * @param val int整型 * @return ListNode类 */ ListNode* deleteNode(ListNode* head, int val) { ListNode ans(-1); ans.next=head; ListNode* pre = &ans; while (head) { if (head->val == val) { pre->next = head->next; } else { pre = head; } head = head->next; } return ans.next; } };