237 删除链表中的节点

https://leetcode.cn/leetbook/read/top-interview-questions-easy/xnarn7/

https://leetcode.cn/problems/delete-node-in-a-linked-list/description/

cost: 1m47s

/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode(int x) : val(x), next(NULL) {}
 * };
 */
class Solution {
public:
    void deleteNode(ListNode* node) {
        node->val = node->next->val;
        node->next = node->next->next;
    }
};

• 时间复杂度：O(1)
• 空间复杂度：O(1)