Educational Codeforces Round 72 (Rated for Div. 2) A--E

RANK:1868       1702 -13→ 1689   The cf has played too badly recently. I still feel unstable. Lead to difficult problems without time to think, simple problems are not fast. The ranking is naturally very low. A: Firstly, we should increase our ...

Posted by scotmcc on Fri, 06 Sep 2019 12:33:10 +0200

Performance comparison of mutex and conditional variables in C++ concurrent programming

introduce This paper uses the simplest producer-consumer model to compare the performance of mutex and mutex+conditional variables by running a program and observing the cpu usage of the process. The producer-consumer model for this example, one producer and five consumers.Producer threads put data into the queue, five consumer threads fetch da ...

Posted by plasmagames on Sun, 01 Sep 2019 19:06:08 +0200

Class of ES6 New Features

In JS, it actually has no concept of class. If we want to implement an object-oriented programming, we can only use the constructor, but the constructor has its own shortcomings. First of all, its writing is not clear. If we need to inherit, we need to operate prototype manually. Secondly, its object-oriented idea is not very strong, so in ES6 ...

Posted by jaygattis on Fri, 30 Aug 2019 07:50:13 +0200

go time package timer and breaker

Original Link: https://www.kancloud.cn/digest/batu-go/153534 timer There are two functions in the time package that can help us initialize time.Timer time.Newtimer function Initialize a timer that expires at an interval of 3 hours and 30 ...

Posted by mattyj10 on Thu, 29 Aug 2019 03:28:53 +0200

Windows Insets - Layout Monitor

If you've seen me already Becoming a Master Window Fitter Speaking, you'll know that processing window plug-ins can be complex. Recently, I have been improving the system bar processing in several applications so that they can draw behind the status and navigation bar. I think I've come up with some ways to make it easier to handle inserts (hop ...

Posted by sliilvia on Sun, 25 Aug 2019 13:12:36 +0200

Development of MMO Game Notes 12-MegaCity 1 Based on Unity 2019's Latest ECS Architecture

Development of MMO Game Notes 12 Based on Unity 2019's Latest ECS Architecture MegaCity1 Preparations before commencement: Megacity's Traffic System Summary Update plan Author's remarks ECS Series Catalogue Development of MMO Game Note 0 Based ...

Posted by Enlightened on Wed, 14 Aug 2019 07:55:51 +0200

Realization of Text Message Function in java--Tencent Cloud Short Message

Catalog java realizes the function of sending short messages Preface development environment Tencent Cloud - SMS Code Effect Concluding remarks java realizes the function of sending short messages Preface Nowadays, the function of sending short messages has become ...

Posted by dzelenika on Sun, 11 Aug 2019 17:40:16 +0200

IMPLEMENTATION OF IActionFilter FILTER RUSSIAN DOLL IN MVC

Looking at the source code of mvc, we know that it executes the InvokeAction method in the Controller Action Invoker class to implement the filter and action method execution.   By looking at the source code, we know that he implemented the IActionFilter filter and action method by calling InvokeAction Method WithFilters, as shown in the ...

Posted by sweatje on Fri, 09 Aug 2019 13:00:20 +0200

Parse Property Resolution of Compile-Source Edition

It's not easy to write articles. Give a compliment to your brother. Focus on Vue source code sharing, the article is divided into vernacular version and source version, vernacular version helps to understand the working principle, source version helps to understand the internal details, let's learn together.Research based on Vue version [2.5.1 ...

Posted by Cynix on Fri, 09 Aug 2019 08:02:31 +0200

JUC (2. Interthread Communication)

Two threads, one printing 1-52, the other printing alphabet A-Z printing order is 12134B... 5152Z, Require inter-thread communication 1.synchronized Implementation package com.liuyuanyuan.thread; import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; impo ...

Posted by Solar on Mon, 05 Aug 2019 06:01:29 +0200