Programming VIP

Experimental environment We write index.html in/usr/local/nginx/html on a virtual machine with nginx configured. We can access the web successfully and the size of the web page is more than 200 k configuration file Nginx compresses web pages and needs to modify niginx's configuration file.Let's fi ...

Previous remarks HZ people seem to have learnt Splay, and the lecturers often say Splay, so do the gods of our school. Every time they say Splay, I say that I won't be too embarrassed. After learning Splay, I really feel that it is a very beautiful data structure. Summary Pre-cheese: Binary Search Tree A binary sorting tree is either an empty t ...

Catalog @Data @NonNull @Getter & @Setter @ToString @EqualsAndHashCode @NoArgsConstructor, @RequiredArgsConstructor, @AllArgsConstructor lombok It is a very magical java class library. It can use annotations to automatically generate annoying Getter s and Sett ...

Topic link: https://www.lydsy.com/JudgeOnline/problem.php?id=2157 This question gives us a boundary right, so we need to convert it into a point right. Topic Requirements Operation: 1. Query the sum of all bridge pleasure values between u and V in scenic spots. 2. Query the maximum value of brid ...

Watch Blog is a function that supports the creation of columns, that is, a series of related articles can be archived into columns, to facilitate user management and access to articles. Here we mainly explain the creation, modification and deletion of columns. As for the columns, there are other functions involved, such as attention columns, wh ...

Problems encountered with successful connection but denial of login Premise to say, I configure the reverse proxy of nginx on my own server, so I will write my ip address directly when requesting. To configure nginx, you can see my notes of nginx. When the code feels okay, but it still can't be uploaded, first ask yourself if you have been refu ...

Today it's very autistic...Continue Pot+. Title Link: http://acm.hdu.edu.cn/contests/contest_show.php?cid=850 A: Convex hull + interval dp. B: Graph Thesis. C: Spot division.For a reference blog: https://www.cnblogs.com/uid001/p/11266021.html D: Title maximum minimum, obviously two points. Set each answer to x, how can I determin ...

Prototype pattern - A prototype instance specifies the type of object created and creates new objects by copying these prototypes. The caller does not need to know any creation details and does not call the constructor! It belongs to the creation mode. It does not create other objects by new, but by using existing objects in memory as template ...

I. THE CONCEPT OF POLYMORPHISM 1. What is polymorphism? A thing has a variety of forms, that is, to face the various states of the object. Official Interpretation: Multiple different classes of objects can respond to the same method and produce different results It is emphasized that polymorphism is not a special grammar, but a state and ch ...

polymorphic Concept: A thing has many different forms. For example, water is solid and gaseous. Bumblebee: Autobots, Cars, Airplanes Official Interpretation: Multiple different classes of objects can respond to the same method and produce different results First of all, it is emphasized that polymorphism is not a special grammar, but a state, a ...