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According to a certain value, the unidirectional linked list can be divided into small on the left, equal in the middle and large on the right [title] Given the head node of a one-way linked list, the value type of the node is integer, and then given an integer pivot Realize a function to adjust the linked list. The left part o ...

Many friends may encounter the following problems when using spring cloud gateway How to read Post request body in spring cloudgateway private BodyInserter getBodyInserter(ServerWebExchange exchange) { ServerRequest serverRequest = new DefaultServerRequest(exchange); Mono<String> modifiedBody = serverRequest.bodyToMono ...

Copy Taobao back to top effect Requirement: when the scroll bar reaches a certain position, the sidebar is fixed at a certain position, and then when it slides down to a certain position, the back to top button will be displayed. After clicking the button, the page will slide to the top dynamically, from fast to slow. Train of thought: 1. js co ...

1. Find the maximum or minimum depth of binary tree public int maxDepth(Tree root){ if(root == null) return 0; return 1 + Math.max(maxDepth(root.left), maxDepth(root.right)); } public int minDepth(Tree root){ if(root == null) return 0; return 1 + Math.min(max ...

High precision multiplication High precision multiplication refers to the multiplication of large integers that cannot be represented by ordinary data types (such as longint). step High precision multiplication mainly includes the following requirements and processes 1. In order to obtain the value of each bit of the input n ...

Preface To save you time, let me briefly introduce this article.This article is divided into three main parts: the implementation of Lock, the origin of AQS (through evolution), the use and principle analysis of three major JUC tool classes. Lock implementation: Briefly introduce the implementation of classic Lock under ReentrantLock and Reent ...

Shared memory for nginx is one of the main reasons it can achieve high performance, mainly for file caching.This article first explains how shared memory is used, then how nginx manages shared memory. 1. Use examples nginx declares that the instructions for shared memory are: proxy_cache_path /Users/Mike/nginx-cache levels=1:2 keys_zone=one:10m ...

Make progress every day. When you are free recently, learn about Flutter, occasionally record the learning content and problems. Here is a simple form validation. import 'package:flutter/material.dart'; class FormRoute extends StatefulWidget { final String _title; FormRoute(this._title); @override State<Statefu ...

Problem description A few days ago, I was helping my colleagues to troubleshoot the occasional thread pool errors on the production line The logic is simple, and the thread pool performs an asynchronous task with results. However, there have been occasional errors recently: java.util.concurrent.RejectedExecutionException: Task java.util.concurr ...

This section mainly introduces the in-depth learning of spring boot application class related source code. It mainly includes: Spring boot application custom boot configuration Spring boot application life cycle, as well as customized configuration in various stages of the life cycle. This section uses springboot 2.1.10.release. The correspon ...