Programmer Group

Device driver model of linux kernel Preface 1, The cornerstone of equipment model -- kobject subsystem Two. General framework of device model -- bus, device and driver model 3, About the drive's virtual memory file system -- Sysfs system Preface At the end of the day, LDD3 was basically finish ...

(1) . summary 1, Classification of loop statements 1. while loop The while cycle first checks the cycle continuation condition. If the condition is true, the loop body is executed; if the condition is false, the loop ends   2. do - while loop Similar to the while loop, only the do ...

Simple use of C++ STL heap correlation function A brief introduction to the use of heap related functions Heap is not a container, but a special way to organize container elements. Only the scope of the heap can be determined, that is, the scope specified by the start and end iterators. This means th ...

From the pool technology to the bottom layer implementation, an article takes you through the thread pool technology. 1. Introduction to pool technology In the process of system development, we often use pooling technology to reduce system consumption and improve system performance. In the field of prog ...

Solve the problem: Find the k th smallest number in an unordered array Fast Solution: Randomly select a number and use the Dutch flag problem to divide the data into less than or equal to more than three pieces Calculate the length with a well-differentiated array to see if it hit or not, or in whi ...

Recently, I was brushing some questions of PAT with algorithm notes, and I was going to take a CSP test with JAVA. I found that there are not many JAVA players in algorithm questions, and there are few online guides for JAVA players, so I sorted out some skills I found and learned these days If you have ...

We saw ReentrantLock earlier. In fact, this lock is only applicable to write more and read less, that is, when multiple threads modify a data, it is suitable to use this lock. However, if multiple threads read a data and use this lock, it will reduce efficiency, because only one thread can read at the same time! This time, let's look at the Ree ...

As you know, the CTP interface of futures is provided by the technology company of the previous period. The source code and examples it provides are written in C + + language, which is not convenient to use. For example, I need a database, a program, a K-line chart, and functions like this. I need to do ...

Article directory 5.2 definition of string 5.3 comparison of strings 5.4 abstract data types of strings 5.5 storage structure of string 5.5.1 sequential storage structure of strings 5.5.2 chain storage structure of string 5.6 simple pattern matching algorithm 5.7 KMP pattern matching algorithm 5.7 ...

Binary sort tree (BST) Introduction of topics Requirements: efficient query and addition of sequence {7, 3, 10, 12, 1, 5, 9}. Analysis: Use array: the array is unsorted, and the advantages are added directly at the end. It is fast and slow to find: the array is sorted, and binary search is fast, ...