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://learner.video/series/php-tips-and-tricks/episodes/14), blog (http://rrylee.github.io/2015/11/26/quick-start-linux-php) Homestead-laravel project development environment Nvm-node version management tool, which is easy to install. github-> nvm Terminator-command line tool, see https://github.com/RryLee/.dotfiles/blob/master/terminator/config Fish + oh-my-fish-Configuration Reference https://github.com/RryLee/.dotfiles/blob/master/fish/config.fish Php php -v // PHP 7.0
translation) Back end SSH simplified configuration (circlelove translation) Python3.5 principle (Yushneng translation) JQuery Tips for Everyone (yves-x translation) OAuth2 Authentication with Lua (BOBO translation) HTTP/2 for Web Developers (Zhongyi Tong translation) Tutorial Chrome Devtools Tips Tricks (chemzqm translation) Development of a simple desktop application via Electron (zhangdroid translati
The method for generating exe executable files on the web front-end page. With the rise of HTML5 and the unification of JavaScript, a technology called [cross-platform] is becoming increasingly popular. Why is it so hot? Software developers only need to write a program once to run on Windows, Linux, Mac, IOS, Android, and other platforms. This greatly reduces the workload of programmers and enables fast reading and iteration of the company's products. Previously, cross-platform technology was no
The optimal matching of a bipartite graph. Find the minimum billing flow. The minimum cost for matching all vertices is required. simply apply the KM algorithm .. The following is the 1853 AC code:[Cpp]# Include # Include Using namespace std;Const int maxn = 305;Const int INF = (1 Int g [maxn] [maxn];Int lx [maxn], ly [maxn];Int match [maxn];Bool visx [maxn], visy [maxn];Int slack [maxn];Int n;Bool dfs (int cur ){Visx [cur] = true;For (int y = 1; y If
samples, the two are different electron imaging, the former is transmission electron imaging, the latter is scattering electron imaging.In transmission electron microscope, not only the specific image area can be selected for electron diffraction (selective
tube are sequentially connected to each point under the scanning of electron beam, and their brightness changes are continuously converted into electrical signals; the scanned signal is transmitted through a single channel, and then an electron beam is used to scan a fluorescent screen with electro-optic conversion characteristics, which is converted from an electrical signal into a light image.The princip
is also an independent system, so it is called a video subsystem. Due to hardware design, the CPU can access the video memory of the video subsystem through the bus, but the display coprocessor cannot access the system memory on the motherboard. However, the speed of the bus is far from enough. When the CPU and display coprocessor perform a large amount of data throughput, the bus becomes abnormal and congested. To solve this problem, the AGP structure is generated. This structure connects the
Term:molecular Orbital theory, MO"Starting point" Schrodinger equation: operator/Hamiltonian – Orbital/wave function – intrinsic valueThe "Hamiltonian" energy operator, in the absence of external field, is written into two parts of kinetic energy and potential energy, the total atomic energy (negative), the kinetic energy (negative) of the electron monomer, the repulsion potential energy (positive) between the nuclei, the repulsion potential energy (p
follows:Data Required time = Clock arrival Time-tsu (Equation 2-4)(hold) The data demand time formula is calculated as follows:Data Required time = Clock arrival time + Th (Formula 2-5) 2.5 Setup slackSet up time allowance (Setup slack): When the data demand time is greater than the data arrival time, say time surplus, Slack is a designation that indicates whether the design satisfies the timing.Figure 3.8
Guide to graphic display settings for game players (7) Translated by Koroush Ghazi 7. Graphics settings-refreshing Rate Update Rate The refresh rate and the number of frames per second are not confused. FPS indicates how fast your video card can output independent frames per second. The refresh rate is a separate attribute of the CRT display: the number of refresh times per second, no matter how many frames the video card has or what type of images will be displayed on the screen. Most of the t
compilers to compile and run functions. Let's take a look at the working principle of the Computer Monitor and the structure of the display card. I. Working Principle of the monitor Currently, grating scanning displays using cathode ray tube (CRT) are widely used in personal computers, the color we see on the screen is formed by the point of the electron beam emitted by the electron gun on the fluorescent
1, "an electron will pass through two slits at the same time." "Electronic double-slit interference experiment has been nearly hundred years, its behind the microscopic world of physics has been well known, quantum mechanics has also undergone a variety of other experimental tests, the current expansion and application of it is endless. However, because ordinary people's so-called "intuitive understanding" of the deviation and physics itself on the in
decimal places. Sample Input 3 3 4100 100 100 199 99 99 198 98 98 1 3 41 100 100 10099 1 99 9998 98 1 98 3 41 100 100 1001 99 9998 1 98 98Sample Output 2.0000001.0000001.333333 Source POJ Founder Monthly Contest-2008.08.31, windy7926778[Cpp]/*************************************** ************************> File Name: poj1_6.cpp> Author: SDUT_GYX> Mail: 2272902662@qq.com> Created Time: 0:16:38**************************************** **********************/# Include # Include # Include # Include
Online a bunch of people to write km algorithm, have not found out which speak better.KM algorithm approximate process:(1) Initializes an LX array to the one of the boy's most weighted edges. Initialize the LY array to 0.(2) For each boy, find a Girl object with DFS, record the S and T sets on the way, and update the slack value for each girl. If the object cannot be found, go to 3.(3) Finding the minimum slack
HDU_1853 First, if you want to ensure that a graph has a ring and there is no intersection between the rings, the outbound and inbound degrees of each vertex must be 1. Therefore, we can split a vertex into two vertices, represent the degree of exit and inbound respectively, and then find the perfect match of the Bipartite Graph after the split point. I have come up with two ideas on how to determine whether the source image can constitute a perfect match: ① Before using the KM algorithm, use
clock. 4.Input to Output Path The design can has a combinational path going from an input port to an output port. This path can is constrained and timed just like the input andOutput paths we saw earlier. Figure 8-7 shows an example of such a path. Virtual clocks is used to specify constraints on both input and outputPorts. Here is the input and output delay specifications.Set_input_delay-clock virtual_clkm \-max 3.6 [Get_ports INB]Set_output_delay-clock virtual_clkm \-max 5.8 [Get_p
the software to support plugins Google a bit, search a few, finally feel the katana this software is good.Although the function is simple point, but the interface does the comparison specialized, and supports the service, above Imgur is a foreign free graph bed service. All right, all right, here it is.Research packagingThis software is written in JavaScript, just know with Javascrpit can also make Mac app, development tools choose to use Webstorm. Research the source of the time is genera
KM algorithm can be achieved o (n3). We give each y vertex a "slack" function slack, which is initialized to infinity each time we start looking for an augmented path. While looking for an augmented path, when checking for edges (i,j), if it is not in the equal sub-graph, let slack[j] be the smaller value of the original value and a[i]+b[j]-w[i,j]. This way, whe
this layer. Of course, although we have excellent process management tools such as pm2 to help us, we will automatically restart the service after it crashes... But we need to get the error message immediately .... Even if an exception is retained in the errpr. log of pm2, who will be able to stare at the error log. To solve this problem, I wrote a piece of code to collect error logs, hoping to help you. Var pm2 = require ('pm2'); var Slack = require
modification, in this way, the complexity of modifying the top mark is O (n ^ 2), and the total complexity is O (n ^ 4. For each element YJ of not t, define the relaxation variable slack (YJ) = min {L (xi) + L (YJ)-W (XI, YJ ), | XI in S}, it is obvious that Delta = min {slack (YJ), | YJ in not t} each time, O (N ^ 2) is used after each expansion) the calculation of the time is a bit of the initial
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