Programmer Group

Although lz is still a master of laboratory brick moving, with the ambition of becoming an excellent programmer ape and the idea of "stupid birds fly first", I decided to start my journey of LeetCode (sprinkle flowers ★, °: ☆ (￣▽ ￣) / $:. ° ★.) I measured my level rationally. After some selection, I decided to start wit ...

Vue_UI and Vuex UI Library element-ui Official website: https://element.eleme.cn/#/zh-CN/component/installationhttps://element.eleme.cn/#/zh-CN/component/installation Element, a desktop component library based on Vue 2.0 for developers, designers and product managers Element UI is a third-party PC side component library based on vue box I ...

E. Height All the Same General idea of the topic Given the grid of \ (n * m \), cubes can be placed on each grid. Initially, there are \ (a_{i,j} \) cubes on the grid with coordinates of \ ((i,j) \). Now there are two operations: Select two adjacent squares and place a cube on top of each Select a person's Square and place two cubes on it It ...

Spring version 3.1 introduces the annotation based cache technology and provides a set of abstract cache implementation scheme. It uses the cache through annotation and flexibly uses different cache components based on configuration. The code is quite flexible and extensible. This paper analyzes the code art of Spring Cache based on the Spring ...

edition: Centos7.6 JDK1.8 Scala2.11 Python2.7 Git1.8.3.1 Apache Maven3.6.3 CDH6.3.2 Apache Flink1.12.0 The above software needs to be installed in advance!!! 1, Compile Flink 1 download the flink source code git clone https://github.com/apache/flink.git git checkout release-1.12.0 2. Add maven image Add the following mirrors in the m ...

Transferred from: Qt - drag the mouse to adjust the window size - remove ice and sugar - blog Garden (cnblogs.com) Requirement: when the mouse moves to the corner of the interface, the mouse style changes accordingly. Implementation method 1: Override mouseMoveEvent. If the mouse is not pressed, set the mouse style according to the positio ...

Expected score: 100 + 30 + 0 = 130 Actual score: 70 + 30 + 0 = 100 summary Set of test follies: T1 uses the line segment tree to write the maximum and minimum values of a monotonic sequence. T1 thinks that \ (mlog^2n \) can run over the data of \ (10 ^ 6 \). The initial value of T2 \(dp \) is incorrectly assigned. Fortunately, there is a large ...

Spring MVC overview Spring MVC is a web framework based on MVC design concept officially provided by spring. (equivalent to Servlet) Spring MVC is a framework for MVC control based on Servlet encapsulation. Realize the data interaction between the front end and the server. Comparative advantages of Spring MVC and Servlet Strictly abid ...

Codeforces problem plane portal & Luogu problem plane portal Obviously, the points we choose to delete together with \ (u \) will form a connected block. Otherwise, if we choose not to delete the points that are not in the same connected block with \ (u \), the answer must be better. Note that if we choose to delete a son \ (V \) of \ (u \) ...

Design pattern - abstract factory pattern meet Simple factory mode,Factory method model In the factory method mode in the previous chapter, a factory only produces one product, which has good scalability, but in reality, factories are diversified. A factory can create a series of products. At this time, the factory method mode is not applicab ...