Delete Node in a Linked List leetcode

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.

Subscribe to see which companies asked this question

Show Tags

Show Similar Problems

一上来就感觉这个题没法做啊，没有提供头结点，只是被删除的节点，怎么找到被删除节点的上一个节点啊。
看了下其他人的答案，才发现自己已经形成了思维定势。
也可以采用节点内赋值的方法

void deleteNode(ListNode* node) {
if (node == nullptr)
return;
node->val = node->next->val;
node->next = node->next->next;
}