LeetCode 237. Delete Node in a Linked List

题意：给你一个单向链表，删除一个非末节点。

class Solution {
public:
    void deleteNode(ListNode* node) {
        if(node == NULL || node->next == NULL)
            return;
        node->val = node->next->val;
        node->next = node->next->next;
    }
};