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BLE
[LeetCode] 哈希表 I — 242#有效的字母异位词 | 349#两个数组的交集 | 202#快乐数 | 1#两数之和
两数之和基础知识哈希表常用于快速判断一个元素是否在集合中,空间换时间哈希表是根据key(如数组的索引下标)直接进行访问的数据结构哈希函数:将key映射到哈希表上的索引index=hashFunction(key)=(hashCode(key)%ta
ble
Size
miilue
·
2025-01-26 15:59
LeetCode
散列表
leetcode
哈希算法
c++
开发语言
算法
数据结构
算法竞赛入门经典(第二版)第二章循环结构程序设计注解与习题下
2-4子序列的和输入两个正整数nintmain(){intn,m;dou
ble
a;while(scanf("%d%d",&n,&m)!
土豆呀土豆
·
2025-01-26 14:25
算法竞赛入门经典
算法竞赛
ACM
C#集合排序的三种方法(List<T>.Sort、LINQ 的 OrderBy、ICompara
ble
<T> 接口)
见过不少人、经过不少事、也吃过不少苦,感悟世事无常、人心多变,靠着回忆将往事串珠成链,聊聊感情、谈谈发展,我慢慢写、你一点一点看......1、使用List.Sort方法与自定义比较器public class Person{ public stringName{ get; set;} public intAge{ get; set;}}public class PersonComparer
我曾经是个程序员
·
2025-01-26 14:51
常用代码片段
c#
开发语言
数据结构与算法之递归: LeetCode 51. N 皇后 (Ts版)
N皇后https://leetcode.cn/pro
ble
ms/permutations-ii/description/描述按照国际象棋的规则,皇后可以攻击与之处在同一行或同一列或同一斜线上的棋子n皇后问题研究的是如何将
Wang's Blog
·
2025-01-26 14:21
Data
Structure
and
Algorithms
leetcode
算法
JOIN 和 OUTER JOIN,SQL中常见的连接方式
例子:SELECT*FROMTa
ble
AJOINTa
ble
BONTa
ble
A.ID=Ta
ble
B.ID;这将只返回
小美的打工日记
·
2025-01-26 13:46
sql
java
数据库
hive窗口函数和hive基础使用
7.270.连接客户端beeline-ujdbc:hive2://localhost:100001.建库并使用createdatabasexxxusexxx2.建表createta
ble
xxxcreateexternalta
ble
ifnotexists
醉与浮
·
2025-01-26 13:45
hive
hive
大数据
hadoop
leetcode:279.完全平方数
279.完全平方数来源:力扣(LeetCode)链接:https://leetcode.cn/pro
ble
ms/perfect-squares/给你一个整数n,返回和为n的完全平方数的最少数量。
uncle_ll
·
2025-01-26 13:44
编程练习-Leetcode
leetcode
动态规划
算法训练
完全平方数
如何开启Chrome浏览器、Edge浏览器、Firefox浏览器的实验室功能
Chrome浏览器:chrome://flagsEdge浏览器:edge://flagsFirefox浏览器:about:config以下Chrome、Edge常用配置开启并行下载:ena
ble
-parallel-downloading
new code Boy
·
2025-01-26 13:43
chrome
edge
firefox
PostgreSQL TRUNCATE TA
BLE
操作详解
PostgreSQLTRUNCATETA
BLE
操作详解引言在数据库管理中,经常需要对表进行操作以保持数据的有效性和一致性。
lsx202406
·
2025-01-26 12:10
开发语言
使用napi node_使用Napi / node-addon-api和Cmake的独立于Node.js版本的C ++ Native Addon
Node-addon-api/Napiaddonusingcmake.Napimakesitindependentofnode.jsversion,meansouraddonwillbecompati
ble
withallfutureversionofnode.js.Cmakeisacross-platformcodecompilingt
weixin_26738395
·
2025-01-26 11:31
vue
ViewUI
Java异步编程
Java.Util.Concurrent.FutureListena
ble
FutureCompleta
ble
FutureJDK8中搭建Completa
ble
Future超时控制轮子Java异步编程什么是异步编程
大-魚
·
2025-01-26 11:59
Java
#Java异步编程
java
Chapter 3-18. Detecting Congestion in Fibre Channel Fabrics
MTMUse-casesMTMisalightweightApp.ItisnotdesignedtotakeplaceofafullyfunctionalmonitoringplatformslikeCiscoNDFC/DCNM.Instead,itisdesignedforuserswholikecustomizingthemonitoringplatformsbasedonthepro
ble
m
mounter625
·
2025-01-26 11:58
Linux
kernel
网络
linux
服务器
kernel
tcp/ip
C++ 策略模式
#pragmaonceclassCashSuper{public:virtualdou
ble
acceptCash(dou
ble
money)
比滕
·
2025-01-26 10:50
C++设计模式
策略模式
c++
开发语言
python 类型标注-typing --- 类型标注支持 — Python 3.7.9 文档
classtyping.TypeVar¶类型变量用法:T=TypeVar("T")#CanbeanythingA=TypeVar("A",str,bytes)#MustbestrorbytesTypevaria
ble
sexistprimarilyforthebenefitofstatictypecheckers.Theyserveasthe
weixin_39892481
·
2025-01-26 09:48
fatal: una
ble
to access ‘https://github
fatal:una
ble
toaccess‘https://github.com/protocolbuffers/protobuf.git/’:Failedtoconnecttogithub.comport443
江_小_白
·
2025-01-26 09:16
报错解决方案
github
Java 中如何使用 SSL 连接 IoTDB
IoTDB支持SSL协议,但是在配置文件中相关参数是默认关闭的状态,如下:#Doesdn_rpc_portena
ble
SSL#effectiveMode:restart#D
铁头乔
·
2025-01-26 09:15
java
ssl
iotdb
数据库
时序数据库
开源
需要按ctrl+alt+delete才能进入用户解锁界面
WindowsRegistryEditorVersion5.00[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon]"Disa
ble
CAD
m0_75101866
·
2025-01-26 09:44
windows
springboot配置文件与注解
文章目录配置注解@SpringBootApplication:@Configuration@Ena
ble
AutoConfiguration:@ComponentScan:@Value:@ConfigurationProperties
xiaobai_cpp
·
2025-01-26 08:37
java
spring
boot
后端
java
element ui Ta
ble
组件内容自适应的情况下实现表头相对页面固定
一、elementuiTa
ble
只要在el-ta
ble
元素中定义了height属性,即可实现固定表头的表格,而不需要额外的代码。
木有是我
·
2025-01-26 08:36
js
html
vue
css
js
Element ta
ble
表头吸顶效果(适用于表头无fixed属性使用)
在main.js自定义sticky指令Vue.directive('sticky',{//当被绑定的元素插入到DOM中时……inserted(el,binding){//获取表格constthead=el.children[1]consttbody=el.children[2]//获取滚动元素constscrollParent=document.querySelector(binding.valu
阳光的男夹克
·
2025-01-26 08:04
Vue
2
javascript
开发语言
ecmascript
el-tree,父节点的复选框不显示
对父节点的选择框禁用关键代码:computed:{defaultProps(){return{children:'children',label:'label',disa
ble
d:(data,node)
timoingff
·
2025-01-26 08:32
前端
javascript
html
《随笔二》——C#中的“readonly 修饰符 、”
readonly修饰符namespaceCh05Ex03{classRandomNum{constintcc=200;//const字段只可以在字段的声明语句中初始化readonlydou
ble
aa=3.14
To-String
·
2025-01-26 08:01
C#中的随笔
readonly关键字
c#
el-ta
ble
表格单行表头
最近开发项目遇到一个订单列表展示的需要在每一行表头上进行订单的某些操作和数据展示如图:表格一般我都是使用elementui的el-ta
ble
正常使用肯定是不能满足这个效果想了想也是有点思绪便做了一个demo
Is无糖
·
2025-01-26 07:00
vue.js
前端
javascript
PEX: Python Executa
ble
魔力工具箱
PEX:PythonExecuta
ble
魔力工具箱pexAtoolforgenerating.pex(PythonEXecuta
ble
)files,lockfilesandvenvs.项目地址:https
史艾岭
·
2025-01-26 07:00
【Vue入门实践】Element-UI 树形组件el-tree的组件封装 =>实现组织机构树Tree => 使用vue-content-menu定制可编辑树结构edita
ble
Tree
文章资源连接(如果需要付费,联系我修改即可):https://download.csdn.net/download/Sabrina_cc/87607289好吧吐槽一下,公司决定之后的技术栈都是vue了,我又从React转战回来了。干巴爹好的生活方式,是和一群志同道合的人,一起奔跑在理想的路上!回头有一路的故事,低头有坚定的脚步,抬头有清晰的远方。首先了解Element-UI中定义的基础Tree树组
小白Rachel
·
2025-01-26 07:58
前端工作日记随笔
Vue项目实战
elementUI组件优化
vue.js
ui
elementui
el-tree
组织机构树
elementUI Ta
ble
组件实现表头吸顶效果
需求描述当ta
ble
内容过多的时候,页面上滑滚动,表头的信息也会随着被遮挡,无法将表头信息和表格内容对应起来,需要进行表头吸顶开始编码环境:vue2.6+、elementUIstep1:给el-ta
ble
热忱1128
·
2025-01-26 07:54
elementui
vue.js
前端
idea版本与maven版本不匹配问题报错java.lang.RuntimeException: java.lang.RuntimeException
org.codehaus.plexus.component.repository.exception.ComponentLookupException:com.google.inject.ProvisionException:Una
ble
toprovision
_ks℘ℳJJ、意中人๓
·
2025-01-26 06:24
maven
intellij-idea
maven
java
Windows 11安装DeepSpeed报错(Una
ble
to pre-compile async_io)已解决
Windows11安装DeepSpeed报错(Una
ble
topre-compileasync_io)问题解决_pipinstalldeepspeed报错-CSDN博客
day_day_up1
·
2025-01-26 06:48
python
机器学习
计算机视觉
8-docker启动报Failed to start Docker Application Container Engine
解决方案该问题可能的原因是selinux未禁用导致,禁用selinux,重启服务器进行验证vim/etc/sysconfig/selinux更改前:SELINUX=enforcing更改后:SELINUX=disa
ble
d
小黑要上天
·
2025-01-26 05:14
docker
docker
容器
运维
mysql的单表数据导入到hive数据库中
1、将mysql的数据导出借助dbeaver工具,将单表数据ta
ble
1格式导出为csv文件2、将csv的后缀名手动改为txt后缀,为了让每行的的字段是以,分隔3、将得到的txt文件上传到hdfs文件系统中
熏陶
·
2025-01-26 05:43
数据库
mysql
hive
题解 洛谷 Luogu P2853 [USACO06DEC] Cow Picnic S 搜索 C++
题目传送门P2853[USACO06DEC]CowPicnicS-洛谷|计算机科学教育新生态https://www.luogu.com.cn/pro
ble
m/P2853思路分别以每头奶牛所在的牧场为起点进行搜索
qwq_ovo_pwp
·
2025-01-26 05:40
c++
数据结构
算法
图论
题解 CodeForces 131D Subway BFS C++
题目传送门Pro
ble
m-131D-Codeforceshttps://codeforces.com/pro
ble
mset/pro
ble
m/131/Dhttps://codeforces.com/pro
ble
mset
qwq_ovo_pwp
·
2025-01-26 05:10
c++
广度优先
算法
题解 洛谷 Luogu P4715 【深基16.例1】淘汰赛 C++
题目传送门P4715【深基16.例1】淘汰赛-洛谷|计算机科学教育新生态https://www.luogu.com.cn/pro
ble
m/P4715https://www.luogu.com.cn/pro
ble
m
qwq_ovo_pwp
·
2025-01-26 05:10
c++
算法
把hive中的数据导出到mysql
stnamestring2.sqoopexport--connectjdbc:mysql://localhost:3306/xiandian--usernameroot--passwordbigdata--ta
ble
m1
樱浅沐冰
·
2025-01-26 05:39
笔记
hadoop
hive
mysql
Mybatis plus的基本使用
1Mybatisplus的简介(来自官网)2基本使用步骤2.1引入依赖坐标2.2定义Mapper并继承BaseMapper接口3直接使用一部分自动生成的方法4基本规则5常用注解(都用于实体类)5.1@Ta
ble
Name5.2
厂里英才
·
2025-01-26 03:55
Mybatis
plus
mybatis
plus
spring
boot
java
Serverless Plugin Optimize 使用指南
⛔️DEPRECATED⛔️BundlewithBrowserify,transpileandminifywithBabelautomaticallytoyourNodeJSruntimecompati
ble
JavaScript
舒林艾Natalie
·
2025-01-26 03:51
项目推荐:Serverless优化插件 —— 提升您的云函数性能与效率
⛔️DEPRECATED⛔️BundlewithBrowserify,transpileandminifywithBabelautomaticallytoyourNodeJSruntimecompati
ble
JavaScript
井队湛Heath
·
2025-01-26 03:21
vue3表格数据分2个表格序号连续展示
一、el-ta
ble
表格在弹窗里面分两个表格展示。假设我们有一个数组ta
ble
Data,我们希望在第一个表格中展示前半部分的数据,第二个表格中展示后半部分的数据。
我爱加班、、
·
2025-01-26 02:45
前端开发遇到的问题
前端功能实现以及问题解决
vue项目实际开发中的bug
elementui
前端
javascript
TypeError: ‘str‘ object is not calla
ble
的几种情况及解决办法
TypeError:‘str’objectisnotcalla
ble
的几种情况及解决办法第一个可能,定义了一个str的变量,这个和Python自带函数str的命名冲突了,所以发生这个错误。
兔兔爱学习兔兔爱学习
·
2025-01-26 02:44
pandas
python
机器学习
深度学习
人工智能
ollama部署及实践记录,虚拟环境,pycharm等
/myproject/ollama-linux$ollama--helpLargelanguagemodelrunnerUsage:ollama[flags]ollama[command]Availa
ble
Commands
PyAIGCMaster
·
2025-01-26 02:44
我买了个服务器
pycharm
linux
ide
Flink读写Kafka(Ta
ble
API)
前面(Flink读写Kafka(DataStreamAPI)_flinkkafkascram-CSDN博客)我们已经讲解了使用DataStreamAPI来读取Kafka,在这里继续讲解下使用Ta
ble
API
sf_www
·
2025-01-26 01:39
实时计算Flink
flink
kafka
大数据
MyHashMap
privatestaticfinalintDEFAULT_CAPACITY=16;privatestaticfinalfloatLOAD_FACTOR=0.75f;privateintsize=0;privateObject[]ta
ble
顾北辰20
·
2025-01-26 01:04
Java数据结构
java
数据结构
Java常用类
包装类包装类定义包装类就是将基本数据类型封装到类中,使基本数据类型具有类的特点,方便操作包装类分类byte->Byteshort->Shortint->Integerlong->Longfloat->Floatdou
ble
ufosuai555
·
2025-01-26 01:03
java
python
开发语言
ProxySQL 读写分离
配置ProxySQL监听在两个不同的端口,方法如下:#ProxySQL默认的用于客户端连接的端口是6033ProxyQL-Admin>showvaria
ble
slike'mysql-interfaces
小左2010925
·
2025-01-26 00:51
mysql
database
负载均衡
proxy模式
VxLAN 分布式对称 IRB 实验
全域互访二、配置思路:1、网络侧配置underlayer底层互通1)CE1、2配置IGP,让loo0互通2)CE1、2建立BGPEVPN邻居,建立EVPN路由传输通道(全局要先开启e-overlayena
ble
jiecy
·
2025-01-25 23:46
数通
运维
分布式
网络
运维
mysql 设置某一字段的默认值
一:创建表时设置默认值创建表时,使用DEFAULT关键字为字段设置默认值:比如下表,年龄没有数据插入时,默认18CREATETA
BLE
my_ta
ble
(idINTPRIMARYKEY,nameVARCHAR
egekm_sefg
·
2025-01-25 23:45
mysql
数据库
若依拓展开源项目
DataSourceAutoConfiguration.class})publicclassRuoYiApplication{publicstaticvoidmain(String[]args){Configura
ble
ApplicationContextrun
ProfessorYang_mc
·
2025-01-25 22:41
开源
Mysql事务隔离级别及其底层原理
MySQL提供了四种事务隔离级别,分别是读未提交(ReadUncommitted)、读已提交(ReadCommitted)、可重复读(Repeata
ble
Read)和串行化(Serializa
ble
)。
阿狸远翔
·
2025-01-25 21:06
mysql
数据库
【ArkUI】对于Flex布局与基础组件&&声明式UI-组件封装&&父子组件相互绑定的运用
.Flex布局与基础组件二.声明式UI-组件封装和父对子组件传值2.1组件封装2.2父对子组件传值三.父子组件相互绑定3.1远程模拟器3.2Link装饰器一.Flex布局与基础组件Flex是Flexi
ble
Box
一键难忘
·
2025-01-25 21:02
harmonyos
华为
OpenHarmony
对于Flex布局与基础组件
声明式UI-组件封装
Vue指令可拖动元素,兼容PC和移动端
Vue.directive('mova
ble
',{bind(el){letagent=window.navigator.userAgent.toLowerCase(),start,move,end//判断当前是移动端还是
warmbook
·
2025-01-25 19:17
笔记
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