237. Delete Node in a Linked List

1.問題

• 只給想要刪除的node, 刪掉此node

2.想法

• 將此node的值改為此node的下一個node的值, 並刪除下一個node

3.程式碼

/**
 * 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) {
        ListNode* tmp = node->next;
        node->val = node->next->val;
        node->next = node->next->next;
        delete tmp;
    }
};