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2022 Niuke winter vacation algorithm basic training camp 4 A-R Title Description: Xiao Hong gets a string of length n, which is only composed of uppercase letters. Xiao Hong likes red very much (indicated by the letter 'R'), but she hates purple very much (indicated by the letter 'P'). She wants to take a continuous substring that conta ...

  catalogue The stack is implemented as follows: Several practical applications of stack The stack is implemented as follows: Method 1: take the tail of the list as the top of the stack, and use the list method append and pop to realize the stack class Stack: def __init__(self): #Initialization class self.items=[] def isE ...

Hello, I'm architecture Jun, an architect who can write code and recite poetry. Today, let's talk about understanding the background size in CSS3 [easy to understand]. I hope it can help you make progress!!!Understand the background size in CSS3Reading catalogBasic attributes of background sizeSet a fixed width and height for the pictureFixed w ...

Article introduction Many articles on MySQL master-slave replication on the network explain how to implement and some implementation principles, and lack a comprehensive introduction to MySQL master-slave replication. For example, the mode of master-slave replication (semi synchronous mode and asynchronous synchronous mode), the principle ...

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1. Introduction to React React is a JAVASCRIPT library for building user interfaces. React is mainly used to build UI. Many people think react is the V (view) in MVC. React originated from Facebook's internal project to set up Instagram's website, and was open-source in May 2013. React has high performance and simple code logic. More and mo ...

This is a question that Xiaobai blogger encountered when brushing leetcode. This is the best question in the leetcode question bank recently, so I share this joy here. I hope I can continue to make progress and persevere in the future.   catalogue Topic introduction Problem solving ideas and codes 1. Call function - find/index 2. Viole ...

Imitation function (function object) Imitation function is the early name of C + +, and the finalization of C + + Standard Specification adopts function object Function object: an object with function characteristics. From the perspective of behavior, the use of imitation function in Chinese is more prominent From the perspective of calling, i ...

  Have you ever had time to fish In the Internet circle, it is often said that 996 work system, but there are also 965, especially 007, and 007 feels like an ICU. Therefore, everyone will sneak around and occasionally touch fish. There are many ways to fish. Have you ever fished at work? What did you do during your fishing time? If you fini ...

⭐ Preface ⭐ ️ 🍉 Blog home page: 🍁 [warm the sun like the wind]🍁 🍉 Boutique Java column [Javase],[Java data structure] 🍉 Welcome to like 👍 Collection ⭐ Message comments 📝 Private letters must be answered 😁 🍉 This article was originally written by [Rufeng Wenyang], and was first launched in CSDN 🙉 🍉 Bloggers will continue ...