objectives you for and

【动态规划】【动态 DP】 CF750E New Year and Old Subsequence

题目描述 定义数字串是好的当且仅当其包含子序列 2017 ,不包含子序列 2016。 定义数字串的丑陋值为最少删掉几个字符,它才能是好的,如果一直不能,就是 \(-1\) 。 给定数字串 \(t\) ,长度为 \(n\) ,\(q\) 次询问求 \([l,r]\) 的丑陋值。 \(1 \leq n, ......
动态 Subsequence 750E Year 750

Mysql中between...and引起的索引失效问题及解决【转】

发生场景 在查询学生表的时候,需要支持根据创建时间来筛选出某段时间内入学的学生总数,因此在创建时间上加了索引,但是最终发现还是会走全量查询。 实验过程 1 2 3 4 5 6 7 CREATE TABLE `t_user` ( `id` bigint(11) unsigned NOT NULL CO ......
索引 between 问题 Mysql and

TALLRec: An Effective and Efficient Tuning Framework to Align Large Language Model with Recommendation

目录概TallRec代码 Bao K., Zhang J., Zhang Y., Wang W., Feng F. and He X. TALLRec: An effective and efficient tuning framework to align large language model ......

【转】GN Language and Operation

原文链接:https://gn.googlesource.com/gn/+/refs/heads/main/docs/language.md 这里还有一篇:谷歌gn编译文件的使用简介 GN Language and Operation Contents GN Language and Operati ......
Operation Language and

mysql 查询报错Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column

这个错误是由于 MySQL 的新版本中默认开启了ONLY_FULL_GROUP_BY模式,即在 GROUP BY 语句中的 SELECT 列表中,只能包含分组或聚合函数,不能包含其他列。而你的查询语句中出现了一个列senior_two.score.student_id,它既没有被分组也没有被聚合,因 ......

Object类

......
Object

EF报错:Unable to create an object of type 'XXXXXXX'. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728

这个是在EF迁移的时候报错: 解决方案:修改你的MyDbcontext: 代码如下: public class StoreDbContexttFactory : IDesignTimeDbContextFactory< ‘你的类名’> { public ‘你的类名’CreateDbContext(s ......

Symbol.for()

当我们在不同的模块或文件中需要共享一个特定的Symbol时,可以使用Symbol.for()方法来实现。 假设我们有两个模块,分别是module1.js和module2.js。我们希望在这两个模块中使用相同的Symbol来表示一个特定的概念,比如"mySymbol"。 在module1.js中,我们 ......
Symbol for

MEASURES FOR GARBAGB DISPOSAL

To begin with, let's review the definition of what garbage disposalis. The purpose of garbage disposal is to remove the garbage quickly, treat it harm ......
MEASURES DISPOSAL GARBAGB FOR

.Net6 and VsCode CodeFirst开发和迁移使用

VsCode开发.net6 干货如下: C# Base language support for C# 包含vscode的调试 C# Dev Kit C# Extensions IntelliCode IntelliCode API Usage Examples IntelliCode Comple ......
CodeFirst VsCode Net6 Net and

Measures and effects to address air pollution

Measure: Reduce or prevent the emission of pollutants Reform the energy structure and adopt non-polluting energy sources such as solar energy, wind po ......
pollution Measures address effects and

CodeCraft-21 and Codeforces Round 711 (Div. 2)

CodeCraft-21 and Codeforces Round 711 (Div. 2) A. GCD Sum 题意 定义 \(gcdSum(x)=gcd(x,sum\ of\ digits\ of\ x)\)。 请你输出最小的 \(x\) 满足 \(x\ge n\),且 \(gcdSum(x) ......
Codeforces CodeCraft Round 711 and

for循环,range函数,无线while循环

#for循环中,含有for遍历;其语法结构是: for + 变量(设置一个变量) + in + 遍历对象# range函数,是Python中的一个内置函数,产生一个 {n,m)的整数序列,其中包含n,不包含m #在使用for遍历时 将变量用range函数来代替,那么这时for循环将遍历range中的 ......
函数 无线 range while for

Planting Trees and Glasses--- Holding Back Soil Erosion

Planting trees and glasses 植树种草 Ganzhou, a typical red soil hilly area in Jiangxi province, is a pilot area for high-quality development of soil and w ......
Planting Glasses Erosion Holding Trees

Tradeoffs in scalable data routing for deduplication clusters 文献阅读

前言 本文提出了一个基于集群的数据去重存储系统 GOLD 1. 高吞吐量 2. 可扩容 3. 高数据去重 问题 以何种粒度路由数据 提出原因:块大小的减小,数据去重速率会增加,但是对于更大的块大小,由于流和文件间的局部性,吞吐量会增加 方法:构建超级块 如何将超级块分配给节点 方法:使用称为bin的 ......

Action plan for soil pollution control

Action plan for soil pollution control In May 2016, The State Council issued the "Soil Pollution Prevention and Control Action Plan" (referred to as t ......
pollution control Action plan soil

Educational Codeforces Round 126 (Rated for Div. 2)

https://codeforces.com/contest/1661/ B题数据很小,直接bfs预处理就行 C题随便猜了一下,设mx=\(max\{a_i\}\)最后的值应该是 mx,mx+1,mx+2,mx+3之类的吧 D题刚开始从前面考虑,陷入僵局,一度非常的困,学习凯库勒睡了一会,就突然想到 ......
Educational Codeforces Round Rated 126

Memo Pack and LeetCode 3

Memo Pack Source code: git.suckless.org/sbase I don't know if it's the standard implementation for Linux bash command, but it's a good material. An ex ......
LeetCode Memo Pack and

Action plan for soil pollution control.

Action plan for soil pollution control In May 2016, The State Council issued the "Soil Pollution Prevention and Control Action Plan" (referred to as t ......
pollution control Action plan soil

Action plan for soil pollution control

Action plan for soil pollution control How does it work? First, to carry out soil pollution investigation and grasp the status of soil environmental q ......
pollution control Action plan soil

Drawdown——A New Way of Thinking About and Acting on Global Warming

Definition of drawdown: Drawdown is that point in time when atmospheric concentrations of greenhouse gases begin to decline on a year-to-year basis. M ......
Drawdown Thinking Warming Acting Global

Cisco Packet Tracer and Wireshark

协议时序图 一、客户端:58592;服务器:443 1、Src: 172.29.70.74, Dst: 14.119.104.189 客户端生成公、私钥,将公钥放在key_share中发送给服务端。 标识符:Identification: 0x6a2a (27178) Transmission Co ......
Wireshark Packet Tracer Cisco and

"Go to Source" for Latex on VS Code does not seem to work

I recommend installing LaTeX Workshop instead of LaTeX Preview. Then use the following shortcuts for synctex (aka 'jumping' between code and pdf): fro ......
quot Source Latex Code does

idea提示错误,无效VSC根目录。目录 C:\Users\17482\Desktop\Supermarket-Purchase-Sales-and-Storage-Management-System-master 被注册为 Git 根,但在那里没有发现 Git 仓库。怎么解决?

这个错误信息表明 IntelliJ IDEA 将目录 C:\Users\17482\Desktop\Supermarket-Purchase-Sales-and-Storage-Management-System-master 注册为 Git 根目录,但它没有找到 Git 仓库,因此 IDEA 无法 ......

离线版nRF Connect for Desktop安装方法

首先确保两台电脑都安装了nRF Connect App 先在一台能连网的电脑上安装自己想要的App 然后把APP拷贝到没有网的电脑上 从%USERPROFILE%\.nrfconnect-apps\node_modules\ 拷贝到另一台不能连网的电脑的%USERPROFILE%\.nrfconne ......
Connect Desktop 方法 nRF for

Ways China’s Cities Can Drive Equitable and Sustainable Urbanization

The five-year plan represents an opportunity not just to advance climate goals, but to create better cities as urbanization continues. Here are five w ......

some solutions for deforestation

Deforestation is a serious problem facing our planet,and it is critical that we find ways to solve it.Forests play a vital role in our ecosystem,provi ......
deforestation solutions some for

scss 通过for循环动态创建多个class

项目中有些全局的.scss文件中一些关于设置width的class,如下: .w50{ width:50px; } .w60{ width:60px; } .w70{ width:70px; } .w80{ width:80px; } .w90{ width:90px; } .w100{ width ......
多个 动态 class scss for

PAT甲级 1002 A+B for Polynomials

原题链接: 本题需要将相同次数的项进行相加,因此在初始输入的时候就直接用数组记录每个次数项,下标为次数,值为对应次数项的值(用+=) 遍历整个数组,看有几个元素非0即可知非0项的个数。 因要求降幂输出,则从后向前遍历,输出每个元素的下标和值。 #include <bits/stdc++.h> usi ......
甲级 Polynomials 1002 PAT for

Required request parameter 'numbers' for method parameter type String[] is not present

报错就是这个,然后报错的信息再给点详细的 org.springframework.web.bind.MissingServletRequestParameterException: Required request parameter 'numbers' for method parameter t ......
parameter Required request numbers present