leetcode237---Delete Node in a Linked List(删除指定节点)

问题描述：

Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.

Supposed the linked list is 1 -> 2 -> 3 -> 4 and you are given the third node with value 3, the linked list should become 1 -> 2 -> 4 after calling your function.

问题求解：

/** * 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) {        //要删除node节点，只需把它的值替换掉即可        ListNode* p = node->next;        node->val = p->val;//p的值替换掉node的值        node->next = p->next;//把p删除    }};