Tag：Square
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The picture is unshaped and centered in a limited width and height
（1） Effect to be achieved When making front-end pages, I encountered such a problem: a non square image should be displayed in a square shape without deformation. （2） Implementation method 1. Use the background image to realize Implementation code: Use the background image to realize div { width: 150px; height: 150px; border: 1px solid #ccc […]
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Poisson disk sampling generates uniform random points
When random points need to be generated and distributed naturally and uniformly, Poisson disk sampling is more suitable. However, this method has little relevance to the statistical concept, which is equivalent to the point obeying Poisson distribution in area, There are many ways to achieve this result. Final effect: The circle is a point […]
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AcWing 1018. Minimum toll (linear DP)
Title Link Title Description A businessman goes through an n × N square grid, to participate in a very important business activity.He should enter from the upper left corner of the grid and exit from the lower right corner.It takes 1 unit of time for each small square in the middle.The merchant must cross out […]
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Hengyuan cloud (gpushare)_ Unite: a method to share label space
Article source|Hengyuan cloud community Original address|Unite: a unified label space for entity relationship extraction Original author|Mathor Reference links Abstract (Zhong and Chen,ACL2020 Two are better than one: Joint entity and relation extraction with table sequence encoders）The pipeline method is used to set up two independent label spaces for entity detection and relationship classification, and SOTA is […]
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Ffmpeg uses rotate to solve the problem of four corners being cut after rotation – use pad filter to add a larger background
Let’s start with a normal usage scenario. I put a PNG image on the video and use the overlay filter to solve it. At this time, I want to rotate the PNG. At this time, the four corners may be cut off. How to solve this problem? After pad, you need to move the image […]
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Behavior type: X Visitor mode
What is the visitor pattern Visitor is a behavioral design pattern that allows you to add new behaviors to the existing class hierarchy without modifying the existing code. Why use visitor mode Visitor pattern suggests putting new behavior into a separate class called visitor rather than trying to integrate it into existing classes. Now the […]
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Excel export of hutool tool
Introduction: Hutool is a Java toolkit, just a toolkit. It helps us simplify every line of code, reduce every method, and make the Java language “sweet”. Hutool was originally an arrangement of the “util” package in my project. Later, it gradually accumulated and added more non business related functions, widely learned the essence of other […]
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[source code project + analysis] C language / C + + development to create a small project minesweeping game!
I have been writing hundreds of lines of small projects, so I wrote a console mine sweeping. I didn’t expect to finish the code by about 200 lines. However, considering that I was streamlined, enrichment was the essence. I sent out all of you to study, and saw that the program could run and play, […]
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Python game development, pyGame module, python implementation of minesweeping games
preface Today I’ll share with you a minesweeping game. There’s no more nonsense. Let’s start happily~ Effect display development tool Python version: 3.6.4 Related modules: PyGame module; And some Python built-in modules. Environment construction Install Python and add it to the environment variable. PIP can install the relevant modules required. Principle introduction Here I briefly […]
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PHP design pattern – bridge mode
definition: Bridge mode:Separate the abstract part from its implementation part so that they can change independently. Structure: Abstraction: abstract class. RefindAbstraction: abstract classes that are refined. Implementor: implementation class. ConcreteImplementor: concrete implementation class. Client: client code. Code example: Next, use the code to realize an example of color combination. There are three […]
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[haoi2007, p2216, bzoj1047] ideal square monotone queue solution
Title Description There is one\(a \times b\)The matrix is composed of integers. Now please find one of them\(n \times n\)The difference between the maximum value and the minimum value of all numbers in the region is the smallest. Input format First behavior\(3\)An integer representing\(a,b,n\)Value of. Second line to second line\(a+1\)Every line\(b\)A nonnegative integer representing the […]
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In order to make you advanced canvas, I spent 7 hours writing 3 interesting games!!!
preface Hello, I’m Lin Sanxin. I believe you have read my previous introduction to canvasIn order to get her started with canvas in 10 minutes, I stayed up late and wrote three small projects and this article, I already have an entry-level understanding of canvas. Today, I wrote three interesting games with canvas to make […]