Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.

Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single...

Given two binary trees, write a function to check if they are the same or not.

有客户咨询，认为19c RAC集群资源状态和11g RAC大不一样，比如在他们的19c集群，也是只部署2节点，却显示3个资源状态，其中第三个还是offline状态，担心是否有影响。...

_cat系列提供了一系列查询elasticsearch集群状态的接口。你可以通过执行

Given a binary tree, return the inorder traversal of its nodes' values.

82. Remove Duplicates from Sorted List II

Viewing Resource Information //查看资源信息

题意：给出n个点m条边 然后每个时间点，与这个位置相连的所有点就会变成这个点的颜色 比如时间1的时候就是以这个位置相连的点2 变成1的颜色同理如下，通过2个循环之后除了第一次循环的时候看不出来循环节 在第二次循环的时...