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Why does Dijkstra's algorithm use decrease-key?
...es and 'n' to denote the number of vertices of our graph:
If you want the best possible worst-case complexity, you would go with a Fibonacci heap that supports decrease-key: you'll get a nice O(m + nlogn).
If you care about the average case, you could use a Binary heap as well: you'll get O(m + nl...
How to concatenate columns in a Postgres SELECT?
...r. Details:
Any downsides of using data type "text" for storing strings?
Best way to check for "empty or null value"
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Responsive css background images
...size whatever your div size change , good for small , big , normal sizes , best for all , i use it for my projects where my background size or div size can change
background-repeat:no-repeat;
-webkit-background-size:cover;
-moz-background-size:cover;
-o-background-size:cover;
background-size:cover;...
Regular expressions in an Objective-C Cocoa application
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RegexKit is the best I've found yet. Very Cocoa:y. I'm using the "Lite" version in several of our iPhone apps:
sourceforge
lingonikorg
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Resizing SVG in html?
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I have found it best to add viewBox and preserveAspectRatio attributes to my SVGs. The viewbox should describe the full width and height of the SVG in the form 0 0 w h:
<svg preserveAspectRatio="xMidYMid meet" viewBox="0 0 700 550">&l...
How to reset AUTO_INCREMENT in MySQL?
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yeah this is the best solution, but you might want to lock tables if there is data being writen eg production tables
– wavvves
May 9 '18 at 14:58
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Resizing an Image without losing any quality [closed]
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As rcar says, you can't without losing some quality, the best you can do in c# is:
Bitmap newImage = new Bitmap(newWidth, newHeight);
using (Graphics gr = Graphics.FromImage(newImage))
{
gr.SmoothingMode = SmoothingMode.HighQuality;
gr.InterpolationMode = InterpolationMode...
Is there a JavaScript MVC (micro-)framework? [closed]
...to make that design choice yourself.
However, JavaScriptMVC is simply the best general purpose JavaScriptMVC library because of its powerful event delegation based controllers.
Event delegation lets you escape having to attach event handlers, and simply create rules for your page.
Finally, JMVC i...
How do I update a Python package?
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The best way I've found is to run this command from terminal
sudo pip install [package_name] --upgrade
sudo will ask to enter your root password to confirm the action.
Note: Some users may have pip3 installed instead. In th...
Label Alignment in iOS 6 - UITextAlignment deprecated
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majorl3oat: It is NOT best practice to use a constant number instead of enum. The enum helps with the readability of the code which is an extremely important factor. That it might break in the future is just bad design from Apple, and if they brea...