Explain
目录 Explain详解 Explain%E8%AF%A6%E8%A7%A3 select type select type type列 type%E5%88%97 possible keys和key possible keys%E5%92%8Ckey possible keys possible...
2022-07-07 21:51【打分几楼MOTO】
阅读更多v-for遍历对象
1、首先声明一个对象 infoCountOption: { vehicleTotal: { icon: require '@/assets/images/bigScreen/online.png' , num: 0, unit
2022-07-07 21:51【大象与小蚂蚁】
阅读更多系统设计概述
短URL设计 系统设计七剑客 同步 网络 数据库 分布式 性能 估算 面向对象 搭建大规模可扩展系统 分布式系统 数据库系统 经典框架 设计原则:CAP理论 一致性介绍 关系型数据库 ACID VS BASE Sharding分片 NoSQL数据库 Cassandra 实时系统:kafka,stor...
2022-07-07 21:51【生活需要深度】
阅读更多给出一个数组,如 [7864, 284, 347, 7732, 8498],现在需要将数组中的数字拼接起来,返回「最大的可能拼出的数字」
// / / 给出一个数组,如 7864, 284, 347, 7732, 8498 , / 现在需要将数组中的数字拼接起来,如按顺序依次拼接为:786428434777328498,数组中的数字拼接顺序可以任意, / 编写程序,返回「最大的可能拼出的数字」。(以上面数组为例,返回849878647...
2022-07-07 21:52【漁陽】
阅读更多sql 数据库执行问题
1 sql 1044 Access denied for user ‘root‘@‘localhost‘ to database ‘information schema‘ 问题:navicat导入.sql文件出现一个错误 1044 Access denied for user ‘root’@‘...
2022-07-07 21:52【狂野小白兔】
阅读更多Entity层、DAO层、Service层、Controller层 先后顺序
添加链接描述 /article/details/117450764?spm=1001.2101.3001.6650.1 utm medium=distribute.pc relevant.none task blog 2~default~BlogCommendFromBaidu~default...
2022-07-07 21:52【狂野小白兔】
阅读更多POJ2392 SpaceElevator [DP]
大家好,又见面了,我是全栈君。 题目大意:有一头奶牛要上太空,他有非常多种石头,每种石头的高度是hi,可是不能放到ai之上的高度。而且这样的石头有ci个 将这些石头叠加起来。问可以达到的最高高度。 解题思路:首先对数据进行升序排序。这样才是一个标准的多重背包的问题 为什么要排序? 由于仅仅有这样才干...
2022-07-07 21:51【全栈程序员站长】
阅读更多HDU 4747 Mex「建议收藏」
大家好,又见面了,我是全栈君。 题意: 给出一段数字a 定义mex l,r 表示a l …a r 中最小的不连续的数字 求出全部mex l,r 的和 思路: 首先能够想到由l開始到n的全部数字的mex值必定是递增的 那么就能够求出以1開始到n的全部数字的mex 从前到后扫一遍就可以 这时能够求出 1...
2022-07-07 21:51【全栈程序员站长】
阅读更多欢聚时代一面
大家好,又见面了,我是全栈君。 前天跟班里几个同学到欢聚时代參加笔试。本来抱着试一试的心态,结果第二天就收到了一面通知。问了一下同去的那几个同学都说没有收到。 周一我10::10分赶到华工大酒店,我是10:30分那批的,签好到后就在座位上耐心的等。结果都11:15分了还没叫我名字。仅仅好到前台问一下...
2022-07-07 21:51【全栈程序员站长】
阅读更多Matlab SEIR infectious disease model prediction
List of articles 1. SEIR Model 1 SEIR 1 2. Demo1 2 Demo1 10 3. Demo2 3 Demo2 79 4. data 4 149 1. SEIR Model Applicable to those who are suscep...
2022-07-07 23:21【Goose feather is on the way】
阅读更多Caip2021 preliminary VP
Write some questions , Take it easy ... A.7 1 Know everything. Watch violence , then O 1 O 1 O 1 Just answer the question . / include bits/stdc++...
2022-07-07 23:21【HeartFireY】
阅读更多The 19th Zhejiang Provincial College Programming Contest 2022 f.easyfix chairman tree
F. Easy Fix Topic analysis Given the permutation p 1 , p 2 , p 3 , … , p n p 1, p 2, p 3, dots, p np1,p2,p3,…,pn, Definition A i A iAi It m...
2022-07-07 23:21【HeartFireY】
阅读更多The 19th Zhejiang Provincial College Programming Contest VP record + supplementary questions
A B C D E F G H I J K L M AC AC AC – – WA/ Supplementary questions AC – AC AC/ await a vacancy or job opening – AC AC A. JB Loves Math Topic anal...
2022-07-07 23:21【HeartFireY】
阅读更多2021icpc Shanghai h.life is a game Kruskal reconstruction tree
H. Life is a Game Kruskal Refactoring tree Topic analysis Given a sheet n nn A little bit m mm Undirected graph of strip and edge , as well as ...
2022-07-07 23:21【HeartFireY】
阅读更多Oracle database backup and recovery
It is not the last blow that breaks the stone , It's the one in front 99 One hit Articles are constantly updated , You can search by wechat 【 Xiaoq...
2022-07-07 23:21【Mr. Li, a genius】
阅读更多Unity3d learning notes 5 - create sub mesh
List of articles 1. summary 1 1 2. Detailed discussion 2 4 2.1. Realization 21 6 2.2. analysis 22 126 3. Reference resources 3 161 1. su...
2022-07-07 23:21【charlee44】
阅读更多Force deduction solution summary 648 word replacement
Directory links : Force buckle programming problem The solution sums up Share + Record CSDN Blog ' Force buckle programming problem The ...
2022-07-07 23:21【Lost summer】
阅读更多Unity3d Learning Notes 6 - GPU instantiation (1)
List of articles 1. summary 1 1 2. Detailed discussion 2 6 3. Reference resources 3 187 1. summary In the previous article , A material co...
2022-07-07 23:21【charlee44】
阅读更多Unity3d learning notes 4 - create mesh advanced interface
List of articles 1. summary 1 1 2. Detailed discussion 2 4 3. other 3 78 4. Reference resources 4 83 1. summary In the article Unity3D ...
2022-07-07 23:22【charlee44】
阅读更多V-for traversal object
1、 First declare an object infoCountOption: { vehicleTotal: { icon: require '@/assets/images/bigScreen/online.png' , num: 0, unit
2022-07-07 23:23【Elephants and ants】
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