solution family sets of
ARC163D Sum of SCC
### Description 给定 $N,M$,求对于所有 $N$ 个点的,满足恰有 $M$ 条从小连向大的边,即 $\sum\limits_{(u,v)\in E}[u 给竞赛图每个 SCC (强连通分量)缩点后,剩下的是由一条**极长**的链与某些前向边组成的图。 于是 SCC 的数量能够转换 ......
inheritance of CLASS
 由此进入工作面类的计算的app,子路由及后续如下: ![image ......
Your project does not reference ".NETFramework,Version=xxx" framework. Add a reference to ".NETFramework,..." property of your project file and then re-run NuGet restore.
错误:Your project does not reference ".NETFramework,Version=v4.6.1" framework. Add a reference to ".NETFramework,Version=v4.6.1" in the "TargetFramework ......
语言模型的预训练[6]:思维链(Chain-of-thought,CoT)定义原理详解、Zero-shot CoT、Few-shot CoT 以及在LLM上应用
语言模型的预训练[6]:思维链(Chain-of-thought,CoT)定义原理详解、Zero-shot CoT、Few-shot CoT 以及在LLM上应用 ......
RuntimeError: Working outside of application context. 创建flask数据库报错
在执行flask创建数据库时报错 解决办法 借鉴如此 修改执行代码执行成功 ......
set
set 显示或设置shell特性及shell变量 ## 补充说明 **set命令** 作用主要是显示系统中已经存在的shell变量,以及设置shell变量的新变量值。使用set更改shell特性时,符号"+"和"-"的作用分别是打开和关闭指定的模式。set命令不能够定义新的shell变量。如果要定义 ......
ERROR [ModelSpecification.spec] At least one type of specification is required
项目在启动过程中会打印大量上述标题异常,最后在github翻看到解决办法。 参考这篇:[generator-jhipster/issues](https://github.com/jhipster/generator-jhipster/issues/13835) 具体解决办法:[supress no ......
[LeetCode] 2268. Minimum Number of Keypresses
You have a keypad with 9 buttons, numbered from 1 to 9, each mapped to lowercase English letters. You can choose which characters each button is match ......
WinBioDataModelOOBE" 是 Windows 操作系统中的一个组件,全称是 "Windows Biometric Data Model Out-of-Box Experience",用于在设备首次使用生物识别功能时进行设置和配置
WinBioDataModelOOBE" 是 Windows 操作系统中的一个组件,全称是 "Windows Biometric Data Model Out-of-Box Experience",用于在设备首次使用生物识别功能时进行设置和配置。 以下是关于 "WinBioDataModelOOBE ......
[LeetCode] 1676. Lowest Common Ancestor of a Binary Tree IV
Given the root of a binary tree and an array of TreeNode objects nodes, return the lowest common ancestor (LCA) of all the nodes in nodes. All the nod ......
[CSS] Interchange background of an element
z-index property arranges how an element is stacked onto other positioned elements. At times you may set a z-index property on a child element to be l ......
[CSS] Truncate long text to a number of lines
p.intro { width: 300px; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; /* Truncate when no. of lines exceed 3 */ overflow: ......
Linux系统Apache报错httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain. Set the 'ServerName' directive globally to suppress this message
解决办法: 在配置文件中加一句ServerName localhost:端口号 # echo "ServerName localhost:8068" >> /etc/httpd/conf/httpd.conf 重启Apache即可解决。 ......
awk NR详解!awk 的内置变量 NF、NR、FNR、FS、OFS、RS、ORS
NF 字段个数,(读取的列数)NR 记录数(行号),从1开始,新的文件延续上面的计数,新文件不从1开始FNR 读取文件的记录数(行号),从1开始,新的文件重新从1开始计数FS 输入字段分隔符,默认是空格OFS 输出字段分隔符 默认也是空格RS 输入行分隔符,默认为换行符ORS 输出行分隔符,默认为换 ......
Overview of ASP.NET Core authentication
Overview of ASP.NET Core authentication In this article Authentication concepts Authentication providers per tenant Additional resources By Mike Rouso ......
HTTP/2 stream 1 was not closed cleanly before end of the underlying stream解决
通过git clone 文件时报错 HTTP/2 stream 1 was not closed cleanly before end of the underlying stream 解决: git config --global http.versioin HTTP/1.1 重新git clon ......
处理 yarn build时出错 : spawn ENOMEM (Out of memory)
一、检查是否启用交换空间 通过命令 free -m 检查Linux服务器的内存使用情况 total used free shared buffers cached Mem: 2002 233 1769 0 24 91 Swap: 0 0 0 看查看到有 0 bytes 的Swap memory。:- ......
[LeetCode] 2461. Maximum Sum of Distinct Subarrays With Length K
You are given an integer array nums and an integer k. Find the maximum subarray sum of all the subarrays of nums that meet the following conditions: T ......
[LeetCode] 2222. Number of Ways to Select Buildings
You are given a 0-indexed binary string s which represents the types of buildings along a street where: s[i] = '0' denotes that the ith building is an ......
clickhouse "status=232/ADDRESS_FAMILIES" "code=exited, status=70" 问题
clickhouse 21.2.4.6安装时的问题 232问题 ~~~cpp [root@localhost liang]# sudo systemctl status clickhouse-server ● clickhouse-server.service - ClickHouse Server ......
Doris forentend: Environment invalid because of previous exception: (JE 18.3.12)
错误日志 2023-07-18 19:45:58,493 INFO (main|1) [PaloFe.start():124] Palo FE starting... 2023-07-18 19:45:58,503 INFO (main|1) [FrontendOptions.analyzePrio ......
[LeetCode] 2597. The Number of Beautiful Subsets
You are given an array nums of positive integers and a positive integer k. A subset of nums is beautiful if it does not contain two integers with an a ......
These are the list of external providers available to the application.
These are the list of external providers available to the application. https://github.com/davidfowl/TodoApi/blob/c209f6ae5c5f31f4808b0df85f358d4a572ea ......
无效重复类定义错误:Invalid duplicate class definition of class xxxx
### Description ``` log startup failed: /xxxx/OrderFixFile.groovy: 5: Invalid duplicate class definition of class OrderFixFile : The source /xxxx/Orde ......
834. Sum of Distances in Tree (Hard)
Description 834. Sum of Distances in Tree (Hard) There is an undirected connected tree with n nodes labeled from 0 to n - 1 and n - 1 edges. You are g ......
TypeError: iter() returned non-iterator of type 'MyIterable'
1 class MyIterable: 2 def __init__(self): 3 self.data = [1, 2, 3] 4 5 def __getitem__(self, index): 6 return self.data[index] 7 8 def __iter__(self): ......
题解 Score of a Tree
[Score of a Tree](https://www.luogu.com.cn/problem/CF1777D) 思维题。 我们考虑一个点 $u$ 在所有时刻内的点权为多少。 可以发现,假如 $u$ 的深度为 $0$,那么 $t$ 时刻时它的权值为其子树内所有深度为 $t$ 的点的初始权值异或 ......
QT multiple definition of 问题
在 SIWARESCANNER_H 中 #ifndef SIWARESCANNER_H#define SIWARESCANNER_H#include "nirsensor.h"#include <QObject>#include <QTimer>extern "C"{#include "Operat ......
str、list、dict、bool、tuple、set、程序与用户交互、格式化输出、基本运算符
### 字符串(str) ```python 作用:用来记录人的名字,家庭住址,性别等描述性质的状态 定义字符串: 方式1: name = 'kevin' # 用的多 方式2 name = "kevin" # 用的多 方式3: name = '''kevin'''(当三引号左边有赋值符号和变量名的时 ......
【文献阅读】Optimization and perform criteria of a Stokes polarimeter based on two variable retarders
minimize the noise transmitted through the matrix 主要用三个参数衡量 indicator the condition number (CN) the Equally Weighted Variance (EWV) the error associat ......