Programmer Think

Who's in the Middle(poj2388) Original question link Method 1: Wrong solution: use set, but ignore that there are no duplicate elements in set!!! The error code is as follows: #include<iostream> #include<set> using namespace std; #define NMAX 10004 set<int> cow; int N; int main() { cin >> N; for (int i = 0;i < N;i+ ...

1, Introduction to chaotic system 0 Introduction With the rapid development of communication technology, more and more fields need to transmit digital image signals, so the security of information transmission is becoming more and more important. Two kinds of protection technologies commonly used in digital image communication are digital wate ...

In this paper, the bypass technology of SQL injection for web security is explained in detail, and the principle and application method of SQL injection bypass technology are more deeply mastered through the content in this paper, so as to be better used in penetration testing; The contents of the article are all compiled by personal understand ...

catalogue Creation of one-dimensional array Initialization of one-dimensional array Use of one-dimensional array Storage of one-dimensional array in memory Creation of two-dimensional array Initialization of two-dimensional array Use of two-dimensional arrays Storage of two-dimensional array in memory Array out of bounds Array as fu ...

A.R thinking Suppose there is a string containing k k k r strings [L,R], the left and right first P is L,R, then the contribution of this paragraph is ( l − L ...

1. Read the contents of the directory through the program The procedure is as follows: /********************************************************************** Project name / Project: Internet of things for zero foundation introduction Program name: esp8266 flash folder read Team: Taiji maker team / Taichi maker (www.taichi-maker. Com) Autho ...

preface When it comes to robbing red envelopes, you must be very familiar with it, especially wechat robbing red envelopes, which we contact almost every day. Although the amount of red envelopes we grab each time varies from big to small, we are deeply immersed in the happiness of grabbing red envelopes 😄. But then again, I wonder if you gu ...

Today I want to share 10 great JavaScript shorthand methods, which can speed up the development speed and get twice the result with half the effort. Let's go! 1. Merge arrays Common writing: We usually use the concat() method in Array to combine two arrays. Using the concat() method to merge two or more arrays does not change the existing A ...

Multithreading 1.1 basic concepts: program, process and thread Program: a set of instructions written in a certain language to complete a specific task. It refers to a piece of static code, static objectProcess: it is an execution process of a program or a running program. It is a dynamic process: it has its own process of emergence, existenc ...

1. Why do you need to use design patterns? Using design patterns to reconstruct the whole code can improve the reusability and scalability of the code and reduce code redundancy. 2. Talk about the six principles of design mode? Open Close Principle: the Open Close Principle is open to extensions and closed to modifications. When the prog ...