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XSI IPC  There are three kinds of IPCs we call XSI IPC, namely message queues, semaphores, and shared memory. There are many similarities between them. Specific can be seen The same characteristics of XSI IPC This blog focuses on their differences: Message queue Message queues are linked lists o ...

Thread is a very important part of JDK. All application services are inseparable from the relevant operations of threads. Thread pools are recommended for operation and management of a large number of threads. Thread pools provided by JDK itself are often used in services. Executors are often used to create them in the past, but Ali The specifi ...

2019.7.28 # Written Test Requirements for Programmers # LeetCode Organizes Personal Notes from Zero Single Brush (Continuous Update) To verify whether a tree is a binary search tree is essentially to examine the middle order traversal (only the verification method of middle order traversal is the least ...

A key Search algorithms focus on: sequential search, binary search, hash table search, binary sort tree search. The sorting algorithm focuses on bubble sorting, insertion sorting, merge sorting and fast sorting. Sequential lookup Algorithmic description Sequential lookup of linear tables suitable for sequential or linked storage. Algorith ...

Preface This is the last thread pool implementation provided by Java concurrent packages, and also the most complex thread pool. For this part of the code is too complex, due to limited time, can only be briefly introduced. The Fork/Join framework is actually a task scheduling mechanism consisting of Fork Join Pool as thread pool, Fork Join Ta ...

Why Choose Jump TableAt present, the commonly used balanced data structures are: B tree, red-black tree, AVL tree, Splay Tree, Treep and so on. Imagine giving you a sketch paper, a pen, an editor. Can you instantly implement a red-black tree, or an AVL tree? It's hard. It takes time. It takes a lot of details. It's a lot of trouble to refer to ...

1. Deformation transform: element objects can be rotate d, scale d, moved translate, skew, matrix deformations.Example: transform: rotate(90deg) scale(1.5,0.8) translate(100px,50px) skew(45deg,45deg); /*Matrix Deformation*/ matrix(<number>,<number>,<number>,<number>,<number>,<number>); /*perspective*/ persp ...

Locks are one of the most common synchronization methods. In high concurrent environments, intense lock competition can cause performance degradation of programs. Therefore, it is necessary to discuss some performance issues related to locks and some considerations, such as avoiding deadlocks.In order to reduce the competition for locks and cau ...

Links to the original text: http://www.cnblogs.com/riasky/p/3478384.html There are many applications of backtracking. Here's an interesting horse tour problem. Horse Jumping Day: On an 8*8 chessboard (as shown below), a horse starts at ...

Prepare 1: OpenCV Common Picture Conversion Skills Before computer vision model training, we often use image enhancement techniques to obtain more samples, but some methods in depth learning framework may not meet our needs for image transformation, so we still have a lot of common image processing techniques in OpenCV. Help. Image Channel Se ...