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Task description There are 101227 rows of data to be processed in this task. An example is as follows: 18 Jogging 102271561469000 -13.53 16.89 -6.4 18 Jogging 102271641608000 -5.75 16.89 -0.46 18 Jogging 102271681617000 -2.18 16.32 11.07 18 Jogging 3.36 18 Downstairs 103260201636000 -4.44 7.06 1.95 18 Downstairs 103260241614000 -3.87 7.55 3.3 ...

Concurrent programming - panden's notes on concurrent programming in python Serial, parallel and concurrent [the external link image transfer fails. The source station may have an anti-theft chain mechanism. It is recommended to save the image and upload it directly (img-vcijuIAg-1644766841076)(./img / serial parallel and concurrent. png) ...

generic paradigm Set TreeSet 01. Generics - Overview The role of generics? Is a new feature introduced in JDK5. It provides a mechanism for type safety checking at compile time     Benefits of generics?   1. The possible problems at runtime are advanced to the compilation period   2. Casts are avoided public class D ...

1, Overview Concept: TypeScript is a superset of JavaScript and supports ES6, Microsoft and open source programming languagescharacteristic: Debugging and maintenance: there are input prompts, syntax and logic error warningsType restriction: compilation errorWrite multi version output at one time: it can be compiled into various JS vers ...

Encapsulation of string class General code Header file #pragma once #define _CRT_SECURE_NO_WARNINGS 1 #include<iostream> using namespace std; class MyString//The string should maintain a character array in the heap { public: MyString(const char* str);//Parameterized constructor MyString(const MyString& str);//copy cons ...

prefaceWhat is the "life cycle"? As the name suggests, the life cycle refers to the whole process of an object from before its birth to after its demise. Of course, the specific stages of the life cycle of different objects may be different.When we use the front-end component framework, we all know that each component has its own life ...

Write in front Recently, there was an uproar in the script circle when the news that a crowd coding platform was run away came out (I'm not in the script circle, I just like to watch the people in the group blow and force), as if I could never hear the familiar advertising language again. This also indicates that the third-party coding pla ...

StatisticSlot mainly counts two types of data:Number of threadsNumber of requests, i.e. QPSThe statistics of the number of threads is relatively simple. It is the statistics of the current number of threads through the internal maintenance of LongAdder. Add 1 for each thread, and subtract 1 after thread execution, so as to obtain the number of ...

Technical research background As the current R & D team is in the start-up stage of the company, there is no mature operation and maintenance system, and the ability to build and maintain the mature MQ commonly seen in the market is insufficient. However, we hope to have a lightweight message system for the members of the R & D team. T ...

(1) Express routing 1, Concept of routing 1. What is routing 2. Real life routing 3. Routing in Express 4. Examples of routing in Express 5. Route matching process II. Use of routing 1. Simplest usage (rarely used) const express = require('express') const app = express() // Mount routing app.get('/' , (req,res )=> { ...