Codeforces Round 903 (Div. 3) Question C perfect square

Title Input and output examples Enter: 5 4 abba bcbb bccb abba 2 ab ba 6 codefo rcesco deforc escode forces codefo 4 baaa abba baba baab 4 bbaa abba aaba abba Analysis of question meaning Each figure can be divided into four parts. Only one part is Yuanshi Tianzun, and the others are generated […]

Python + AI: perfect cutout, change background

Looking through the old photos at home, I found a little dog. It’s very interesting, with its wide eyes~ (the background is in the kitchen). Sometimes you want to cut out the characters or protagonists in certain photos and paste them into your favorite background image. For example, you want to make a DIY avatar […]

The perfect combination of Redis and Spring Boot: the black technology of Lua scripting

Source: blog.csdn.net/Mrxiao_bo/article/details/133783127 There once was a magician who was good at combining two powerful tools, Spring Boot and Redis, into an amazing combination. His magic weapon is Redis’s Lua script. Today, we will uncover the secrets of this magician and explore how to use Lua scripts in Spring Boot projects to unlock new possibilities and […]

[GPS interference] Simulate GPS anti-interference link simulation based on matlab

?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more Matlab complete code and simulation customization […]

Nginx with load balancing and static and dynamic separation: the perfect combination for building high-performance web applications

Table of Contents Preface 1. Introduction to Nginx 1.What is Nginx 2. Characteristics of Nginx 3.Where is Nginx used? 4. How to use Nginx 5. Advantages and disadvantages of Nginx 6.Nginx application scenarios 2. Load balancing and static and dynamic separation 1. Load balancing 2. Separation of movement and static 3. Nginx is equipped with […]

Vue.js WebSocket Integration Guide: The perfect solution for real-time communication

Introduction WebSocket is a communication protocol that enables two-way communication in web applications. It allows a persistent, low-latency connection between a client and a server for real-time data transfer. Compared with traditional HTTP requests, WebSocket is more suitable for applications that require real-time and interactivity. Why do you need WebSocket? WebSocket solves some limitations of […]

Python master skills: perfect analysis of cookie acquisition and management

Article directory 1. Cookie acquisition in HTTP request 2. Cookie acquisition in Web framework 3. Use of Cookie Management Library 4. Simulated login and cookie authentication 5. Handling Cookie Expiration and Persistence Summarize In web development, cookies are a common technology used to store and transfer data between web servers and browsers. Cookies typically contain […]

Spring annotation magic: the perfect solution for uniqueness verification of object properties in collections

Spring Boot provides a powerful validation framework, but sometimes we need to create custom validation rules according to our own business needs. This article will introduce how to use Spring Boot custom annotations, validators, and reflection to check whether the value of a certain attribute of each object in the collection is unique. 1. Custom […]

The perfect fit between data and view: the intertwined charm of Vue’s responsiveness

Front-end development engineer (main job), technical blogger (side job), passed CET6 Ashan and her cat_CSDN personal homepage Senior topic writer at Niuke, creating a high-quality column “Essentials for Front-end Interviews” at Niuke The contracted author of Lanqiao Cloud Class, the front-end and back-end practical courses “Vue.js and Egg.js Develop Enterprise-level Health Management Projects” and “Take […]