Programming VIP

transport plan Title Link: ybt high efficiency advanced 4-5-5 / luogu P2680 General idea of the topic There is a tree with weights on its edges. Then there are some paths, and then you can choose an edge and make its weight become 0. If you want to make the modified longest given path the shortest, output this value. thinking First, when y ...

Must do problem sorting At 21:40 on April 11, 2021, I was very skeptical about life after the exam. I originally wanted to rely on professional courses to score points. I also expected that there would be a large number of applicants for specialized courses this year. In addition, the reform of professional courses should be simpler, but I did ...

Turn: Handwritten Promise reading one is enough catalogue outline Blog ideas API features and handwritten source code Constructor then catch Promise.resolved Promise.rejected Promise.all Promise.race outline This article mainly introduces the fea ...

1, Array; Copy: system arraycopy(a,1,b,0,4);             int[ ] b = Arrays.copyOf(a,6);Sorting: arrays sort(arr); // Ascending order (from small to large) 2, Method:   Encapsulate a specific business logic functionBe as independent as possible and do only one thing in one wayMethod can be called repeatedlyReducing code duplication is condu ...

 cfs_rq Each cpu has a corresponding running queue rq, in which the scheduling queues with different scheduling strategies are maintained. struct rq { ... struct cfs_rq cfs; struct rt_rq rt; struct dl_rq dl; ... }; The scheduling queue of cfs is maintained through the red black tree_ In the ...

Invokebeanfactoryprocessors is a very important method in Spring startup. We need to understand several concepts before parsing the source code of this method. 1, BeanDefinition 1.1. Instantiation of common objects We know that ordinary java files will be compiled into java files when Java runs When we instantiate an object into memory, we u ...

chat. System time and file path of netcore mining pit Hi, dear friends, I've been busy recently. I haven't shared anything with you for a long time. I've worked two extra days this weekend. The company's new projects are all based on netcore to develop, in the development process, we also stepped into some pits. Here we summarize two pits, whi ...

1, Type inference In the previous learning process, we need to write type annotations when defining basic types of variables. Although this can clearly indicate the data type of variables, it is really troublesome to write. TS also helps us take this problem into consideration. In most cases, TS will automatically deduce the type of variable a ...

Golang basic learning notes, quickly understand the basic grammar of golang. Learning materials Super complete golang interview questions collection + golang Learning Guide + golang knowledge map + entry growth route ; One covers the core knowledge that most golang programmers need to masterHan Shunping's golang video tutorial , the video is ...

Author: Han Xinzi@ShowMeAITutorial address: http://www.showmeai.tech/tutorials/84Article address: http://www.showmeai.tech/article-detail/1711.Hive construction and configurationHive is one of the most important tool platforms in the big data ecosystem. It is a key component of offline computing. It is often used for data warehouse construction ...