spells types two of

VScode使用MySQL插件老是Connect timeout,右下角还出现Cannot read properties of null (reading 'getPassword') error in vs code问题

安装了MySQL插件,一开始还用的好好的结果第二天就不行了真是鬼火直冒。 首先关闭vscode里面的自动更新:setting,搜索update,然后关闭application里面的自动更新; 我现在的版本是1.83.1,我在https://code.visualstudio.com/updates/ ......
getPassword properties 插件 老是 Connect

解决uniapp button type ts类型冲突问题

安装类型声明文件 npm i -D @dcloudio/types miniprogram-api-typings @uni-helper/uni-app-types @uni-helper/uni-ui-types // tsconfig.json { "compilerOptions": { / ......
类型 uniapp button 问题 type

为什么我们需要不断的开发不同的机器学习模型 —— Do we Need Hundreds of Classifiers to Solve Real World Classification Problems?

论文: 《Do we Need Hundreds of Classifiers to Solve Real World Classification Problems?》 论文地址: https://jmlr.org/papers/volume15/delgado14a/delgado14a.pdf ......

It's likely that neither a Result Type nor a Result Map was specified.

It's likely that neither a Result Type nor a Result Map was specified. 很可能既没有指定结果类型也没有指定结果映射。 出现问题的代码: 本段代码功能是查询一张表的全部 点击查看代码 <mapper namespace="com.d ......
Result specified neither likely Type

excel 导出 The maximum length of cell contents (text) is 32767 characters Excel单元格最大存储长度32767个字符,超长会报错,数据库中也有这个最大长度

excel 导出 The maximum length of cell contents (text) is 32767 characters 导出excel功能,报错。错误日志提示::The maximum length of cell contents (text) is 32767 chara ......
长度 32767 characters 字符 单元

[LeetCode] 2863. Maximum Length of Semi-Decreasing Subarrays_Medium tag: stack

You are given an integer array nums. Return the length of the longest semi-decreasing subarray of nums, and 0 if there are no such subarrays. A subarr ......

CF882E1+CF1882E2 Two Permutations 题解-构造题

CF882E1+CF1882E2 Two Permutations 题解-构造题 哇,人类智慧,太智慧了。。。 此题作为20231010联考的 T3。 感觉赛时根本没有去往这方面想。 CF1882E1 CF1882E2 E1 是简单版,就是没有要求操作数最小化。 E1-Easy Version 方法 ......
题解 Permutations CF 1882 882

1——of C++ and Java togather

因为那个C++最全的笔记是从第18课开始做(笔者说18课之前都很基础),所以这里就对前18课的知识做个笔记总结 C++的工作过程 这里提到的C++工作过程主要涉及两个:编译与链接 之前考研时候学到,(在组成原理的某个章节),计算机的工作过程其实就涉及 “将源程序转换成可执行文件”,与其中便有许多雷同 ......
togather Java and

【论文阅读】Accuracy of real-time multi-model ensemble forecasts for seasonal influenza in the U.S.

原始题目:Accuracy of real-time multi-model ensemble forecasts for seasonal influenza in the U.S. 中文翻译:针对美国季节性流感的实时多模型集合预报的准确性 发表时间:2019年11月22日 平台:PLOS Com ......

ERROR in node_modules/rxjs/dist/types/internal/operators/combineLatest.d.ts(3,61): error TS1005: ‘,’ expected.

原文链接:https://www.longkui.site/error/error-in-node_modules-rxjs/4839/ angular项目,启动的时候报错。详细的报错如下: 这个报错的原因比较简单,rxjs的版本不对,我用的是angular7可能和rxjs版本不匹配。 解法方法也很 ......

Property ‘includes’ does not exist on type ‘any[]’.

原文链接:https://www.longkui.site/error/property-includes-does-not-exist-on-type-any/4833/ angular项目,TypeScript。 项目正常跑的时候没有问题,打包项目(package)的时候开始报这个错误。 然后定 ......
Property includes exist does type

问题记录贴:vue-i18n在弹出框中$t()报错:TypeError: Cannot read property '_t' of undefined

网上有用的解决方法:vue 国际化在弹出框中$t()报错:TypeError: Cannot read property '_t' of undefined 大佬给出的解决方法: 弹窗是一个新的Vue对象,只需要单独给弹窗重新绑定i18n即可。 代码: // dialog/main.js impor ......
TypeError undefined property Cannot 问题

CodeForces 1882E1 Two Permutations (Easy Version)

洛谷传送门 CF 传送门 考虑若是对一个排列进行操作,怎么做。 我们维护一个排列上的值域连续段 \([l, r]\),满足 \(a_{l + 1} = a_l + 1, a_{l + 2} = a_{l + 1} + 1\),以此类推。初始 \(l = r = 1\)。 那么我们每次可以选择往外扩充 ......
Permutations CodeForces Version 1882E1 1882E

CodeForces 1882E2 Two Permutations (Hard Version)

洛谷传送门 CF 传送门 如何评价,模拟赛搬了一道,前一天晚上代码写了一半的题。 考虑如何让操作次数最小。发现直接做太困难了。根本原因是,一次操作对序列的影响太大了。考虑做一些转化,减少一次操作对序列的影响。 仍然先考虑一个排列怎么做。 不知道为什么可以想到在排列前面添加特殊字符 \(0\) 变成 ......
Permutations CodeForces Version 1882E2 1882E

日期格式转换异常:Java 8 date/time type `java.time.LocalDateTime` not supported by default: add Module \"com.fasterxml.jackson.datatype:jackson-datatype-jsr310

异常信息: "unexpected error: Type definition error: [simple type, class java.time.LocalDateTime]; nested exception is com.fasterxml.jackson.databind.exc.I ......

typescript: Chain of Responsibility Pattern

/** * Chain of Responsibility Pattern 责任链是一种行为设计模式, 允许你将请求沿着处理者链进行发送, 直至其中一个处理者对其进行处理。 * file: Chaints.ts * The Handler interface declares a method fo ......
Responsibility typescript Pattern Chain of

[LeetCode] 2282. Number of People That Can Be Seen in a Grid_Medium tag: stack.

You are given an m x n 0-indexed 2D array of positive integers heights where heights[i][j] is the height of the person standing at position (i, j). A ......
Grid_Medium LeetCode Number Medium People

[LeetCode] 1944. Number of Visible People in a Queue_Hard tag: stack

There are n people standing in a queue, and they numbered from 0 to n - 1 in left to right order. You are given an array heights of distinct integers ......
Queue_Hard LeetCode Visible Number People

【论文笔记】A theory of learning from different domains

防盗 https://www.cnblogs.com/setdong/p/17756127.html domain adaptation 领域理论方向的重要论文. 这篇笔记主要是推导文章中的定理, 还有分析定理的直观解释. 笔记中的章节号与论文中的保持一致. 1. Introduction doma ......
different learning domains 笔记 theory

Basic concepts of complex number

目录虚数的引入复数和虚数的关系Example - 分辨一个数判断两个复数是否相等的条件共轭复数复数的几何意义、复平面的认识求复数的模 虚数的引入 假设有一个数,可以叫它狗逼数,但是不太好听,改成高大上一点,叫成虚数吧! 对它的定义如下: 虚数=i \(i^2\) = -1 这样搞有什么好处吗? 假设 ......
concepts complex number Basic of

[CF1158F]Density of subarrays

F - Density of subarrays 屲,平衡复杂度题 首先考虑如何求一个序列的密度 从最左端开始,找到需序列\(A[1...n]\)的最小段\(A[1...a_1]\),使其包含\(1\sim c\)的所有颜色,然后又以\(a_1+1\)为起点,找下一个最短的包含\(1\sim c\) ......
subarrays Density 1158F 1158 CF

[Typescript] Type and Interface for performance

Let's say you're creating a component that has all the props of input but needs to add a label prop. You'll need to extend from the ComponentProps typ ......
performance Typescript Interface Type and

CF915F Imbalance Value of a Tree

原题 翻译 首先观察式子: \[\sum_{i=1}^{n} \sum_{j=i}^{n} \max\{ i,j \} - \min\{i,j\} = \frac{ \sum_{i=1}^{n} \sum_{j=1}^{n} \max\{i,j\} - \min\{i,j\} }{2} = \fra ......
Imbalance Value 915F Tree 915

[902] Get the current file's directory of CMD batch scripts

In a batch file, you can use the %~dp0 special variable to get the directory of the currently executing batch file. Here's how you can do it: @echo of ......
directory current scripts batch file

[901] Reuse variables of CMD batch scripts

In a batch file, you can reuse a variable to generate different file paths by concatenating the variable with other strings or variables. Here's an ex ......
variables scripts Reuse batch 901

[900] Print an empty line of CMD batch scripts

Use the echo. command to print an empty line. @echo off echo This is a line of text echo. echo This is a new line of text This will produce the output ......
scripts Print empty batch line

[898] Convert the data type of a DataFrame column

In Pandas, you can convert the data type of a DataFrame column to a string data type using the .astype() method. Here's how to do it: import pandas as ......
DataFrame Convert column data type

[895] Sort the rows of a DataFrame

In Pandas, the sort_values() method is used to sort the rows of a DataFrame by one or more columns. This method allows you to specify which column(s) ......
DataFrame Sort rows 895 the

引用axios时出现问题——Cannot read properties of undefined (reading 'get') TypeError: Cannot read properties of undefined (reading 'get')

问题描述 我就是按照特别正常的操作进行引用,但是就一直显示axios的get未定义; 问题解决 本来我是使用的this.$axios.get,引用的全局变量, 然后直接改成这样(在该vue界面定义的import,没有使用全局变量): 就能解决这个问题啦! ......
properties undefined reading Cannot 39

np.expand_dims: AxisError: axis 4 is out of bounds for array of dimension 4

np.expand_dims axis = 0时,[]加在最外面 axis = 1时,给每一行都加[] axis = 2时,给每一个元素都加[] x_train = np.expand_dims(X, axis=4) AxisError Traceback (most recent call las ......