operations minimum reverse
Operation not allowed after ResultSet closed问题的解决
# 问题描述 使用JDBC连接数据库时，出现这个错误，我还能看出来，应该是我使用完Statement、ResultSet等之后，关闭close方法的顺序错误 # 问题解决 查阅资料发现，是一个stmt同时对应了多个rs对象，然后用完一个就关闭它，导致第二个rs不能正常使用，所以可以这么解决： 要么， ......
CodeForces 1842G Tenzing and Random Operations
[洛谷传送门](https://www.luogu.com.cn/problem/CF1842G "洛谷传送门") [CF 传送门](https://codeforces.com/contest/1842/problem/G "CF 传送门") 原来还不会这种拆期望的套路 ......
AtCoder Regular Contest 154 E Reverse and Inversion
[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc154_e "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc154/tasks/arc154_e "AtCoder 传送门") 好题！ 考虑如何更 ......
"ntoskrnl"代表"NT Operating System Kernel"，它是Windows操作系统的主要核心模块之一，负责管理系统的内存、进程调度、设备驱动程序和系统服务等关键任务。它是Windows内核的主要部分，提供操作系统的基本功能和支持
Windows内核是微软Windows操作系统的核心组件，它负责管理操作系统的核心功能和提供关键的系统服务。Windows内核是运行在计算机硬件上的软件，它与硬件交互并管理资源分配、进程管理、设备驱动程序和系统安全等任务。 Windows内核采用了一种称为“**混合内核**”的设计，结合了传统的单内 ......
B. Reverse Binary Strings
You are given a string $s$ of even length $n$. String $s$ is binary, in other words, consists only of 0's and 1's. String $s$ has exactly $\frac{n}{2} ......
宏基笔记本安装固态硬盘，重装系统后，无法进入系统,operating system not found
1 开机显示operating system not found 2 开机按F2 （根据自己笔记本设置） 然后点到boot选项，找到Boot List option [UEFI] 然后按enter键进去，把UEFI 改为 Legacy，然后按F10 保存，遇到警告的话，按yes ......
node生成token报错：secretOrPrivateKey has a minimum key size of 2048 bits for RS256 at Object.module.exports [as sign]
提要：在node生成token时 利用用jsonwebtoken，利用非对称加密的生成token const jwt = require("jsonwebtoken"); const privateKey = fs.readFileSync("./keys/private.key"); const ......
1595. Minimum Cost to Connect Two Groups of Points] (Hard)
Description 1595. Minimum Cost to Connect Two Groups of Points (Hard) You are given two groups of points where the first group has size1 points, the s ......
mpirun gpu-operator
https://github.com/mpitutorial/mpitutorial/blob/gh-pages/tutorials/mpi-hello-world/zh_cn.md nvcr.io/nvidia/gpu-operator:v1.10.1 https://github.com/NVI ......
2023-06-20 TypeError: Cannot use 'in' operator to search for 'storeInfo' in undefined
前言：uniapp项目报错：[system] TypeError: Cannot use 'in' operator to search for 'storeInfo' in undefined 原因：data里面没有写return，如下： <script> export default { dat ......
2712. Minimum Cost to Make All Characters Equal (Medium)
Description 2712. Minimum Cost to Make All Characters Equal (Medium) You are given a 0-indexed binary string s of length n on which you can apply two ......
2712.minimum Cost to Make All Characters Equal
Description 2712. Minimum Cost to Make All Characters Equal (Medium) You are given a 0-indexed binary string s of length n on which you can apply two ......
Helm实战案例一：在Kubernetes上使用Helm搭建Prometheus Operator监控
Helm实战案例一：在Kubernetes上使用Helm搭建Prometheus Operator监控，helm安装prometheus-operator，配置prometheus-operator，修改grafana的svc类型，查询grafana的账号密码，访问grafana web界面，删除p... ......
docker-compose构建kratos微服务项目运行失败，提示：runtime/cgo: pthread_create failed: Operation not permitted
这个问题网上解决方案较少， 我们这边问题定位是docker-compose.yaml配置问题 在配置文件中新增配置如下： privileged: true 设置容器的权限为root 最后解决 ......
ResultSet处理Operation not allowed after ResultSet closed案例
ResultSet处理Operation not allowed after ResultSet closed案例 package nc.plugin.uap.maindata;import java.math.BigInteger;import java.sql.Connection;impor ......
Go进阶32:HTTP-Reverse-Proxy反向代理Nginx硬件指纹校验
One Love - Blue 00:00 / 03:25 https://mojotv.cn/go/hardware-footprint-gui-proxy Go进阶32:HTTP-Reverse-Proxy反向代理Nginx硬件指纹校验 Go&Rust🦀 Go进阶 Go进阶32:HTTP-Re ......
reversed 和 sorted 函数
a = 'abcxd' print(reversed(a)) # <reversed object at 0x000000000356F048> print(list(reversed(a))) # ['d', 'x', 'c', 'b', 'a'] print(sorted(a)) # ['a', ......
关于mkfs.xfs创建xfs文件系统指定block-size为512字节时报错-Minimum block size for CRC enabled filesystems is 1024 bytes.
今天笔者看到mkfs.xfs命令的帮助文档手册时，有如下一段内容 可以通过-b size=value 的方式指定 block的大小，默认值是4096 bytes，最小为512 ,最大为65536 The default value is 4096 bytes (4KiB), the minimum ......
Operating System Overview
# Computer System Overview **1.1What are the three main purposes of an operating system?** (1) Interface between the hardware and user; (2) manage the ......
Operating System Process and Thread
# Process Description and Control **3.1: What is an instruction trace?** An instruction trace for a program is the sequence of instructions that execu ......
构建编译dockerfile docker build报错make: uname: Operation not permitted
报错信息：  查看docker版本  展开查看 // A.cpp的重载了全局::operator new(size_t)代码如下 // 使用 g++ -shared -fPIC -o libA.so ......
[LeetCode] 1347. Minimum Number of Steps to Make Two Strings Anagram 制造字母异位词的最小步骤数
You are given two strings of the same length `s` and `t`. In one step you can choose **any character** of `t` and replace it with **another character* ......
[LeetCode] 2460. Apply Operations to an Array
You are given a 0-indexed array nums of size n consisting of non-negative integers. You need to apply n - 1 operations to this array where, in the ith ......
sqlalchemy.orm.exc.DetachedInstanceError: Instanceis not bound to a Session; attribute refresh operation cannot proceed (Background on this error at: http://sqlalche.me/e/bhk3)
在使用sqlalchemy 的orm时，在一个循环中，如果一开始select时用了session，中间update某条记录后，session被关闭，就会出现对象not bound to a Session的问题. DBSession = sessionmaker(bind=self.engine,e ......
WARNING: An illegal reflective access operation has occurred
## 问题描述  ## 问题原因 JDK9之后的版本，模块不能通过反射访问非公有的成员、成员方法和构造方法 ## 解 ......
connect(descriptor:addr:size:): Operation not permitted (errno: 1)
macOS开发mysql client的时候，默认开启了沙箱机制。结果每次连接都给报这个错 如果没有捕获好的话，可能只会出现 connect(descriptor:addr:size:): 这个错误 找半天才在网上找到有这个说法的 另外一个是如果要通过调用 ssh启动通道来做跳板访问的话，或者需要访 ......
Can't operate. Failed to connect to bus: Host is down
» sudo systemctl daemon-reload System has not been booted with systemd as init system (PID 1). Can't operate. Failed to connect to bus: Host is down 尝 ......
【Python】Basics Operation
# Table of Contents ### 二分查找 * [运算符](#yunsuanfu) * [常见内置函数](#neizhihanshu) * [格式化](#geshihua) # Solutions ### 704. 运算符 ......
GPT-Introduction about Reversing SD690 Image Files
In this blog post, we will explore the process of reversing the image files of SD690, a Qualcomm Snapdragon processor that is used in some Android dev ......