Programmer Think

Batch processing, as its name implies, can simplify complex things. It first appeared in dos operating system, that is, cmd black window, which was used most in the early days when there was no gui interface, and the commands were relatively rich. Although many functions are encapsulated in software now, But you will find that it will be faster ...

introduction   to learn Java, we should not only learn the basic grammar, but also learn the idea of programming, in which we should understand what is "class"? What is "object"? And the most important core idea of Java, object-oriented (oop)! This idea can simplify the complex things in life. It is also used in progra ...

Link Title: https://codeforces.com/contest/1525/problem/D Main idea of the title: 0,1 sequence of numbers, a[i]=0 or 1. The number of 1 must not exceed half of n. We need to pair all 1s with a 0. A 0 can only be paired with a 1 ifandPairing will consumeResources. What is the minimum total resource consumption after all 1s are paired? Solutio ...

Click on "end of life", pay attention to the official account. Daily delivery, dry time! 1. Background Use the flowable UI that comes with flowable to make the flow chart Use the interface used by the springboot development process to complete the business functions of the process 2. Deployment and operation of flowabl ...

GBDT gradient lifting iterative decision tree It is an integrated model. The base classifier adopts CART regression tree. GBDT is an algorithm to classify or regress data by using additive model and continuously reducing the residual generated in the training process. Intuitive understanding: there is a residual between each round of predictio ...

📒 Blog home page: Actor's blog 🎉 Welcome to pay attention 🔎 give the thumbs-up 👍 Collection ⭐ Leave a message 📝 ❤️ Look forward to communicating together! 🙏 The author's level is very limited. If you find an error, please let me know. Thank you! 🌺 If you have any questions, you can communicate by private letter!!! 🌺 outline # ...

sort In the previous map, we introduced how to traverse the map in sequence, in which the sort package is used. The sort package provides functions for sorting slices and user-defined data sets. Here are the methods commonly used in sort package. //Sort sort data. It calls data once Len determines the length and calls O(n*log(n)) times data L ...

1, Project module introduction and database design 1. Engineering structure 2. Module introduction Guli parent: online teaching root directory (parent project), managing four sub modules Canal client: canal database table synchronization module (statistical synchronization data)Common: parent node of common module Common util: ...

1, The idea of selecting sorting method: first take out the smallest (large) element, then take out the smallest (large) element in the remaining elements, and select the smallest (large) element among the unprocessed elements for sorting each time. 1. Two ideas: ① open up a new array space and put the smallest (large) elements in the new arr ...

The task parallel library (TPL) is based on the concept of "task", which represents asynchronous operation. In some ways, tasks are similar to threads or ThreadPool Work items, but at a higher level of abstraction. The term "task parallelism" refers to one or more independent tasks running simultaneously. Tasks provide two m ...