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.
题意:给出一个链表和要删除的结点,这个结点不是尾结点。
思路:因为java中是值传递,所以将后一结点的值赋值给当前结点,同时给next赋值为下一结点的next
代码如下:
class ListNode
{
int val;
ListNode next;
ListNode(int x) { val = x; }
}
class Solution
{
public void deleteNode(ListNode node) {
node.val = node.next.val;
node.next = node.next.next;
}
}