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1. GeneralAVL tree is the first self balanced binary tree proposed. In AVL tree, the maximum difference between the two subtrees of any node is one, so it is also called height balanced tree. The AVL tree is named after its inventors G.M. Adelson velsky and E.M. Landis. AVL tree species search, insertion and deletion are O (log n) on average an ...

Vue 3.X using Vue router 4 X for routing configuration, let's study how to use Vue router 4 x. All usage methods in this article are using the Composition API. This paper introduces Vue router 4 step by step Let your new version of Vue router build a simple system X has a complete understanding, and then can easily drop Vue router 4 X is appli ...

The introduction of vant UI into the uniapp project and the pit it stepped on The uniapp framework can write multi terminal projects and generate multi terminal code. When introducing vant UI, make sure to write the project at that end. The introduction of vant components in applet side and H5 project is different. This is very unfriendly to b ...

This article was first published in Floating finch language:https://www.yuque.com/17singeditiondateremarks1.02022.3.8Article launchThis paper analyzes the code based on Flink 1.14.0. PrefaceA while ago, I encountered a strange phenomenon in production: the full-scale operation cannot be carried out normally, and the log is full of Java util. co ...

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At present, the development environment is managed by the front-end team. There are more and more version distribution projects. I decided to develop a set of jinkens automatic packaging and deployment. After searching online, they are too old or unavailable. After three days of research, I finally completed it and wrote it down and shared it w ...

1, Foreword IdentityServer4 has shared some practical application articles. From the architecture to the landing application of the authorization center, it has also mastered some use rules of IdentityServer4, but it still knows a little about many principles. Therefore, I will continue to take you to read its relevant source code, This articl ...

Article catalogue AspNetCore3. 1_ Security source code analysis_ 1_ catalogueAspNetCore3. 1_ Security source code analysis_ 2_Authentication_ Core projectAspNetCore3. 1_ Security source code analysis_ 3_Authentication_CookiesAspNetCore3. 1_ Security source code analysis_ 4_Authentication_JwtBearAspNetCore3. 1_ Security source code analysis_ 5_ ...

-Catalogue 1. Aggregate function + over2. partition by clause3. order by clause4. ★ window clause (included) - predicting: forward - FOLLOWING: backward - CURRENT ROW: CURRENT ROW - UNBOUNDED: starting point5. ★ sequence function in window function: including NTILE(n), row_number,rank,dense_rank   brief introduction The hive function in this ...

26. Polar map (Nightingale Rose) 27. Venn diagram 28. Area chart 29. Tree map 26. Polar map (Nightingale Rose) The polar map (also known as Nightingale Rose) is radially extended, and each piece will occupy a certain angle. Its radius represents the size of a certain type of data it represents. Its angle size indicates its proportion in the t ...