237. Delete Node in a Linked List.md

#237. Delete Node in a Linked List

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.

第一眼看到竟然懵逼了，纳闷为啥不传总链表的引用，这怎么改变指针路线…… 一万个XXX奔跑。真的蠢... 其实只需要把当前链表变成下一个链表就好了，克隆下一个链表来代替当前链表。

Java Solution

public class Solution {
    public void deleteNode(ListNode node) {
        //因为已经说过这个节点不可能是尾节点
        node.val = node.next.val;
        node.next = node.next.next;
    }
}