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[951] Understanding the pattern of "(.*?)" in Python's re package
In Python's regular expressions, (.*?) is a capturing group with a non-greedy quantifier. Let's break down the components: ( and ): Parentheses are us ......
Maybatis-Plus 数据库查询 lambdaQuery和mapper中EQ、NE、GT、LT、GE、LE、select、like、in、leftjoin的用法及详解
Maybatis-Plus lambdaQuery和mapper中EQ、NE、GT、LT、GE、LE的用法及详解 实体 当前实体如下，后续代码示例都用该实体； @Data @TableName("user_info") @ApiModel(value = "UserInfo对象", descript ......
The United States adopts China's air pollution control measures
China has accumulated rich experience in air pollution control. When the United States faced a serious air pollution problem, it began to learn from C ......
UVA1396 Most Distant Point from the Sea 题解
Link UVA1396 Most Distant Point from the Sea Question 在大海的中央，有一个凸 \(n\) 边形的小岛，求出岛上离海边最远的一个点到海边的距离 Solution 二分答案，然后去验证是否有一个点，距离海的距离大于 \(mid\) 如何验证？ 把每条 ......
Chinese Wisdom on Sewage Treatment in India
China program Comprehensively control pollutant emissions (1) Pay close attention to the prevention and control of industrial pollution. Ban the "ten ......
字典中x in dict 和 x in dict.keys()速度不同，前者最快
class Solution(object): def findMaxLength(self, nums): """ :type nums: List[int] :rtype: int """ # 长度2-》1 # 长度3-》0 # 长度4-》2 # 长度5-》0 # 长度6-》3 # 1 2 3 ......
jmeter beanshell常见问题:"BeanShellInterpreter: Error invoking bsh method: eval In file: inline evaluation of....
jmeter使用beanshell文件经常会遇到这个问题:BeanShellInterpreter: Error invoking bsh method: eval In file: inline evaluation of.... 原因可能有： 1.jar包没有放入对应位置 解决：放到lib/ex ......
The Redemption of the Moon
ZJOI2022 树 考虑一下容斥，钦定若干个节点满足要么都为叶子，要么只有一遍是叶子，另一边无所谓。 记 \(dp_{i,j,k}\) 表示前 \(i\) 个节点， \(T_1\) 中有 \(j\) 个 \(1\to i-1\) 的节点不是叶子，\(T_2\) 中有 \(k\) 个 \(i+1\t ......
Explore change feed in Azure Cosmos DB
Explore change feed in Azure Cosmos DB Reading change feed with a push model There are two ways you can read from the change feed with a push model: A ......
Troubleshooting ‘Externally Managed Environment’ Error in Debian 12 Pip3 Installation
https://medium.com/@kiena/troubleshooting-externally-managed-environment-error-in-debian-12-pip3-installation-439d62e5a970 When working with Python on ......
[947] Batch rename columns in a Pandas DataFrame
To batch rename columns in a Pandas DataFrame, we can use the rename method. Here is an example: import pandas as pd # Sample DataFrame data = {"ID": ......
Applying sewage charging system to deal with water pollution problem in Russia.
What is the sewage charging system? Although manufacturing has always been a key driving force for China's economic growth, it is also the root cause ......
ISSCC2024 Computing-In-Memory Session 趋势整理
ISSCC2024 Computing-In-Memory Session 趋势整理 今天上午ISSCC2024远东区推介会，主要关注了一下Computing-In-Memory Session。CIM今年被放在了Session 34，会上主持人透露CIM方向一共投稿了50篇，最后录用了9篇，算下来 ......
The Application of River Chief System on Water Pollution in Britain
Water pollution is a global concern that affects the health and well-being of both humans and ecosystems. In Britain, despite efforts to address this ......
Transferability of the Chinese Eco-environmental Protection Measure
London Convention and London ProtocolThe London Convention and London Protocol establish the global rules and standards for preventing, reducing, and ......
poj3017 Cut the Sequence
Cut the Sequence Time Limit: 2000MS Memory Limit: 131072K Total Submissions: 15419 Accepted: 4735 Description Given an integer sequence { an } of leng ......
WEBSITE_LOCAL_CACHE_OPTION Environment variables and app settings in Azure App Service
Environment variables and app settings in Azure App Service Setting name Description WEBSITE_LOCAL_CACHE_OPTION Whether local cache is enabled. Availa ......
[945] Replacing a string in all cells of a Pandas DataFrame
To replace a string in all cells of a Pandas DataFrame, we can use the str.replace() method, which allows us to perform string replacements on each el ......
[944] Extracting tables from a PDF in Python
To extract tables from a PDF in Python, we can use several libraries. One popular choice is the tabula-py library, which is a Python wrapper for Apach ......
Local Policies in China and Light Pollution in Singapore
Our measures to combat light pollution can be described as drastic. The main causes of light pollution can be categorized as light-emitting diodes and ......
Transferability of the Chinese Ocean Trash Protection Measure
PROBLEMS Researchers at The University of Western Australia have found that although the Indian Ocean is the world's biggest dumping ground for plasti ......
The 2019 ICPC Asia Yinchuan Regional Contest
Preface 好久没有一场比赛做出两位数以上的题了，评价是写代码写得好爽 感觉这种时间比较古早的场的拿奖难度和现在比起来低好多的说，这场在现场如果有10题都能捧个亚军的杯了 但感觉主要是我们J题最后5分钟乱搞了个做法过了样例交上去就直接过了，后面看了其它人的做法好像和我们的都不一样的说，不知道是数 ......
The 'China Solution' in Nigeria
Nigeria， The northern region of Nigeria, particularly the Sahel region, is experiencing severe desertification due to factors such as deforestation, o ......
(段设期中复习) Great Ideas in Algorithm Analysis: Midterm Review
Distance Algorithms Basic sampling lemma: Let \(S_1,\dots,S_n \subset [n]\) be sets of size at least \(D\), then randomly choose \(c (n/D) \log n\) el ......
On the Opportunities and Risks of Foundation Models
引用链接：https://zhuanlan.zhihu.com/p/401157815 论文链接：https://arxiv.org/pdf/2108.07258.pdf 正文分四部分，阐述内容如下： 能力：模型的能力，模型可以做到的事 语言、视觉、机器人学、推理、交互、理解等； 应用：可应用领域 ......
Optimized Content Caching and User Association for Edge Computing in Densely Deployed Heterogeneous Networks论文阅读
目录Optimized Content Caching and User Association for Edge Computing in Densely Deployed Heterogeneous Networks1、问题背景贡献点：2、系统建模及问题公式化系统建模问题公式化联合内容缓存和用户 ......
Performance Improvements in .NET 8 -- Exceptions & Reflection & Primitives【翻译】
Exceptions 在 .NET 6 中，ArgumentNullException 增加了一个 ThrowIfNull 方法，我们开始尝试提供“抛出助手”。该方法的目的是简洁地表达正在验证的约束，让系统在未满足约束时抛出一致的异常，同时也优化了成功和99.999%的情况，无需抛出异常。该方法的结 ......
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available es端口号及集群名称
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available elasticsearch有两个端口：http_port和transport.tcp.por ......