Tutorial by Examples: g

Let's discuss with an example. From n items, in how many ways you can choose r items? You know it is denoted by . Now think of a single item. If you don't select the item, after that you have to take r items from remaining n-1 items, which is given by . If you select the item, after that you hav...

No matter how many problems you solve using dynamic programming(DP), it can still surprise you. But as everything else in life, practice makes you better. Keeping these in mind, we'll look at the process of constructing a solution for DP problems. Other examples on this topic will help you understan...

A public gist can be almost anything. A simple example of a Javascript function: function randomInt(min, max) { return Math.floor((max - min + 1) * Math.random()) + min; }

A secret gist should be used for anything that you don't want to appear publicly on GitHub. Secret gists can be used when you don't want private keys to be accessible to the public, or for and private code in general. A simple example of JSON code that would be better fit for a secret gist: { &qu...

If you click on export icon, you will given options to choose like on which format you need to export the data. Just click on anything you wish. You can see that the data is being send to the server http://export.highcharts.com/ in the top left side. exporting: { chartOptions: { ...

You need to add a reference of the file called offline-exporting.js to make the client side exporting available. Please be noted this feature is not supported in browser IE 8, So if you load this chart in any unsupported browser, the module will fall back to the export server. This can be handled wi...

If you are using RVM(Ruby Version Manager) then using a gemset for each project is a good idea. A gemset is just a container you can use to keep gems separate from each other. Creating a gemset per project allows you to change gems (and gem versions) for one project without breaking all your other p...

Import the namespace System.Runtime.Caching(Make sure that you have added System.Runtime.Caching DLL to your project reference). Create an instance of MemoryCache class. MemoryCache memCache = MemoryCache.Default; Add values to MemoryCache public IQueryable<tblTag> GettblTags() ...

Email clients use different rendering engines to render HTML emails: Apple Mail, Outlook for Mac, Android Mail and iOS Mail use WebKit Outlook 2000/02/03 use Internet Explorer 6 Outlook 2007/10/13 use Microsoft Word Web clients use their browser’s respective engine (e.g. Safari uses WebKit, Ch...

XmlView: <mvc:View controllerName="sap.ui.demo.wt.controller.App" xmlns="sap.m" xmlns:mvc="sap.ui.core.mvc" displayBlock="true"> <App> <pages> <Page content="{path:'Tiles>/Tiles',fact...

The IE=Edge meta tag is for telling the destination rendering engine to use the latest (edge) version of IE rendering engine, which enables responsive behavior in Windows phones. <meta http-equiv="X-UA-Compatible" content="IE=edge"> Occasionally this breaks images in Li...

Most Rx operators take an optional scheduler on which to schedule their future iterations. If not supplied they will use their default configured scheduler. Supplying a scheduler can be useful for testing purposes in which we like to talk about virtual time instead of real time for speed of test exe...

YAML supports three styles of escape notation: Entity Escapes a. space: " " b. colon: ":" c. ampersand: "&" Unicode Escapes a. space: "\u0020" b. single quote: "\u0027" c. double quote: "\u0022" ...

Create a folder where you would like to have your game live, and move into that mkdir my-new-game cd my-new-game Initialize the directory using npm. npm init -y Install phaser as a node package. npm install phaser Install http-server as a global module, to be used on the...

With the Tap Gesture, you can make any UI-Element clickable (Images, Buttons, StackLayouts, ...): (1) In code, using the event: var tapGestureRecognizer = new TapGestureRecognizer(); tapGestureRecognizer.Tapped += (s, e) => { // handle the tap }; image.GestureRecognizers.Add(tapGestureR...

We have a set of jobs J={a,b,c,d,e,f,g}. Let j in J be a job than its start at sj and ends at fj. Two jobs are compatible if they don't overlap. A picture as example: The goal is to find the maximum subset of mutually compatible jobs. There are several greedy approaches for this problem: Earli...

Open a raster that covers the globe and extract a subset of the raster. import gdal # Path to a tiff file covering the globe # http://visibleearth.nasa.gov/view.php?id=57752 tif_name = "/path_name/land_shallow_topo_21600.tif" # Open raster in read only mode ds = gdal.Open(tif_n...

The HTML <p> element defines a paragraph: <p>This is a paragraph.</p> <p>This is another paragraph.</p> Display- You cannot be sure how HTML will be displayed. Large or small screens, and resized windows will create different results. With HTML, you cannot chang...

In the view file In the base html (index.html) where we usually include the angular scripts or the html that is shared across the app, leave an empty div element, the flash messages will be appearing inside this div element <div class="flashmessage" ng-if="isVisible"> ...