Transformations Block Conversion USACO Analog Array Mathematics Patience
1006: 1.2.2 Transformations Block Conversion
Time limit: 1 Sec Memory limit: 128 MBSubmission: 10. Solution: 7[Submission] [state] [Discussion Edition ] [Proposer: External Import]
Topic Description
1.2.2 Transformations Block Conversion
(transform.pas/c/cpp)
A black-and-white tile pattern of a square of N x N (1<=N<=10) is conver ...
Posted by rajb on Sat, 03 Aug 2019 00:57:54 -0700
The Drawing Process and Principle of Android UI
Drawing process source path
1. Activity loads ViewRootImpl
ActivityThread.handleResumeActivity()
--> WindowManagerImpl.addView(decorView, layoutParams)
--> WindowManagerGlobal.addView()
2. ViewRootImpl starts traversal of View tree
ViewRootImpl.setView(decorView, layoutParams, parentView)
-->ViewRootImpl.requestLayout()
-->schedul ...
Posted by BoltZ on Sat, 03 Aug 2019 00:56:15 -0700
Vue Basic Syntax (Style Binding, Event Processing, Forms, Vue Components)
Style binding
event processing
form
Vue Component
Style binding
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="https://cdn.bootcss.com/vue/2.6.10/vue.js"></script>
<title>vue Style binding</title>
<style&g ...
Posted by robertsamanek on Fri, 02 Aug 2019 20:51:06 -0700
Design mode and python implementation
Design Patterns and Python Implementation
What is the design pattern?
Christopher Alexander: "Each pattern describes a problem that is recurring around us and the core of the solution to that problem.This allows you to use the program again and again without having to repeat your work."
Design patterns are summarized a ...
Posted by artied on Fri, 02 Aug 2019 19:40:21 -0700
Installation and Verification of x210 Cross-compilation Tool Chain
I am using the board of s5pv210 directly here. According to the method of Mr. Zhu's lecture, install the cross-compilation tool chain according to the installation package provided by the government (also installed with source code, this is a high quality, temporarily press the table)
arm-2009q3.tar.bz2
Put this installation package mv in ...
Posted by ludjer on Fri, 02 Aug 2019 11:56:27 -0700
Infix expression to suffix expression, Java implementation
Infix expression is a general arithmetic or logical formula representation. Operators are in the middle of operands in the form of infix (example: 3+4). Infix expression is a common arithmetic representation.
Compared with prefix expressions (example: +34) or suffix expressions (example: 34+), infix expressions are not easily parsed by compute ...
Posted by gernot on Fri, 02 Aug 2019 11:49:14 -0700
Centos 7 minimizes deployment of zabbix
Preface
The content of the article is written by the author himself. It has been put in the word document before. Suddenly, the leisure has shifted to the blog. Follow-up viewers are welcome to have questions to discuss with me.~~~
Don't talk too much nonsense. Let's talk about the principle first.
Summary
Working principle
Collecting d ...
Posted by Hiro on Fri, 02 Aug 2019 04:19:21 -0700
Implementation of Zabbix Monitoring mysql Service
1. Add mysql monitoring items to zabbix-server
It is far from enough to find that there are few monitors and trigger graphics in the enterprise.
2. Import your own monitoring template for mysql services
Go to the agent directory and view the configuration file
[root@server1 ~]# cd /etc/zabbix/zabbix ...
Posted by Poolie on Fri, 02 Aug 2019 03:30:56 -0700
Probability of Constituting Triangle by HDU 4609 3-idiots
http://acm.hdu.edu.cn/showproblem.php?pid=4609
The meaning of the question is to give you n line segments and ask you to choose three arbitrarily to form the probability of a triangle.
Firstly, the overall selection scheme is easy to obtain, and the direct combination number formula can be obtained ...
Posted by knowNothing on Thu, 01 Aug 2019 23:32:32 -0700
Wannafly Challenge 22C Polynomial (Large Number, Polynomial Limit)
Links: https://ac.nowcoder.com/acm/contest/160/C
Source: Niuke.com
polynomial
Time limit: C/C++ 1 second, 2 seconds for other languages
Spatial constraints: C/C++ 262144K, other languages 524288K
64bit IO Format: %lld
Topic Description
Seek Lim limits {x to + infty} frac {f (x)} {g (x)}
x→+∞
lim
g(x)
f(x)
Where f and g are polynomials a ...
Posted by karldesign on Thu, 01 Aug 2019 21:50:17 -0700