【Codeforces536D】Tavas in Kansas

Title: Give you an undirected graph with n points and m edges. Each point has a point weight pi. There are two people playing the game. They are at points s and t respectively. Two people operate in turn. Each operation selects a non-negative integer x, which means that the point weight of the point whose shortest distance is less than or eq ...

Posted by johnthedeveloper on Fri, 04 Jan 2019 09:27:10 -0800

Start developing iOS 10 - 6 with Swift to create a simple Table Based App

table view should be the most commonly used UI element in iOS applications. The best examples are some of the applications that come with the iPhone, such as phones, emails, settings, etc. TED, Google+, Airbnb, Wechat and so on are good examples. Create a project The project name is SimpleTable and the template is "Single View applicat ...

Posted by onlinegamesnz on Thu, 03 Jan 2019 00:24:08 -0800

Developing OPC Client 4 with Lazarus (DLL interworking with Dot Net)

The functions developed for historical reasons need to be provided for application in. NET environment. This should be a difficult point. C and dot NET are managed code. The release of resources is accomplished by GC. Simple data types can be declared as corresponding, and complex data is even more troublesome. Here he talks about character set ...

Posted by yelvington on Tue, 01 Jan 2019 03:48:08 -0800

iOS development-Layout Guide (from top/bottom Layout Guide to Safe Area)

iOS7 topLayoutGuide/bottomLayoutGuide To create a project called Layout Guide Study, let's open it and take a look at Main.storyboard: storyboard-top_bottom_layoutGuide.png You can see two things under View Controller, topLayoutGuide/bottomLayoutGuide, and they are at the same level as the View of Controller. And in the UIV ...

Posted by chordsoflife on Mon, 31 Dec 2018 17:24:09 -0800

iOS Development runtime Principle and Practice: Message Forwarding (Message mechanism, method not implemented + API incompatible rush, simulate multiple inheritance)

This article Demo portal: RuntimeDemo ABSTRACT: Programming can not only understand the principle, but also know the application scenario in practice. This series tries to elaborate the relevant theory of runtime and introduce some real battlefield scenarios. This article is the message forwarding chapter of this series. In ...

Posted by pyr on Tue, 25 Dec 2018 00:24:06 -0800

Still and Video Media Capture

Still and Video Media Capture Most of the content comes from AV Foundation Development Secret Book. AVFoundation capture class Capture session AVCaptureSession captures sessions that are equivalent to a virtual "plugboard" for connecting input and output resources. Capture session management data streams from physical devices ...

Posted by jwalsh on Fri, 21 Dec 2018 15:18:05 -0800

iOS Bluetooth Protocol NSData+CRC Verifies NSData Transliteration. c File Import Xcode

In the past two days, iOS Bluetooth data interaction was done. Initially, the company's plan was to use the mobile phone as a Bluetooth slave device to allow the company platform to scan the Bluetooth address obtained by the code on the mobile phone as the only sign to connect in a directional way. However, the scheme was rejected because the ...

Posted by rtown on Thu, 20 Dec 2018 16:57:04 -0800

iOS[super class] and [self class]

Recently, the editor's office has recruited iOS development positions. The editor has also given several interview questions to examine the candidate's iOS development level, one of which is as follows: @implementation Student : Person - (instancetype)init { self = [super init]; if (self) { id obj1 = [self ...

Posted by MastahUK on Thu, 20 Dec 2018 10:18:04 -0800

Use and configuration of HTTPS on SL/TLS (IIS8 and iOS client)

Use and configuration of HTTPS on SL/TLS (IIS8 and iOS client) CA certificate 1. Domain Name Type SSL Certificate (DV SSL): The trust level is ordinary, only need to verify the authenticity of the website can issue certificates to protect the website; generally free. 2. Enterprise-type SSL Certificate (OV SSL): Strong trust level, ...

Posted by _theworks on Thu, 20 Dec 2018 05:48:05 -0800

How AIR Native Extension for iOS Access Third Party sdk Implements AppDelegate Life Cycle

Author: Panda Fang Source: http://www.cnblogs.com/lonkiss/p/6492385.html Original articles, reprinted please indicate the author and origin, without permission can not be used for commercial profit-making activities   Last year to this year, I did several AIR Native Extension (ANE) on iOS, which was very painful. The way of ANE developm ...

Posted by stuartbaggs on Sun, 16 Dec 2018 20:48:04 -0800