Programmer Think

Stuff Don't Say Much First Paste Code Take poj3468 for example A Simple Problem with Integers Time Limit: 5000MS Memory Limit: 131072K Total Submissions: 123915 Accepted: 38431 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One typ ...

Chain of Responsibility Model Concept and purpose Also known as the responsibility chain model Avoid coupling the sender of a request with the receiver so that multiple objects have the opportunity to process the request. Connect the receiving object into a chain and pass the request along the chain until one object can ...

Angular-Search Box and Price Limit Write a simple angular search box. 1. requirements: Using Angular JS framework to realize mobile phone product search function, Title requirements: 1) Find the material by oneself and enrich the data of mobile phone products to at least 10 or more according to the original data format. 2) Self-designed pa ...

This chapter focuses on summarizing: Using AIDL If there are a lot of concurrent requests, using Messenger is not suitable, and if you need to call the server-side methods across processes, Messenger can not do it. At this point we can use AIDL. The process is as follows: 1. The server needs to create a service to l ...

Crash Log There are two main sources of Crash Log: What Apple provides can be copied directly from the user's device or downloaded from iTunes Connect (XCode) Three-party or self-research Framework statistics, three-party services including Fabric, Bugly and so on. The Crash Log mentioned in this article is provided by Appl ...

background When it comes to exception handling, you may directly think that it's not a try-catch thing. As for writing an article to explain it separately? If you think so, this article may surprise you.~ And this article focuses on the exception handling of the image. scene Learning to apply, there are specific application scenarios, can deep ...

  Question: Recently I have made a small program involving Bluetooth module, make a summary, make a record of your growth, if you can help you, it would be great; 1. Applet Bluetooth Search Can Search Mobile Devices 2. How to determine if Bluetooth is on or off 3. Search for specified devices 4. The deviceId obtained on th ...

Article firstCreative Patterns: Factory Approach brief introduction Name: Factory Method English name: Factory method Pattern Values: Expansion is my monopoly Personal introduction: Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Methods lets a class defer instantiation to subclasses. ...

A orm database Flutter plugin. I posted an article earlier. Hand-in-Hand Teaching You Elegant Use of ORM Database in Flutter Project Many people also put forward some valuable suggestions on consulting and using, saying that they do not want to write lua, which is not elegant enough, but also increases the cost of learning. On reflection, it is ...

Preface Implementing UI and interaction is a necessary skill for big front-end developers and a key point for mastering Flutter development. While learning from Flutter, we have achieved several cool UI effects commonly seen on clients. Although we use Flutter to build the original wheel, Flutter's cross-platform characteristics are incomparabl ...