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When should I use Kruskal as opposed to Prim (and vice versa)?
...in a very straightforward way : http://www.thestudentroom.co.uk/showthread.php?t=232168.
Kruskal's algorithm will grow a solution from the cheapest edge by adding the next cheapest edge, provided that it doesn't create a cycle.
Prim's algorithm will grow a solution from a random vertex by adding ...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
...olumes attached when you launch an Amazon EBS-backed instance are automatically deleted when the instance terminates" but you can modify that via configuration.
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How to generate sample XML documents from their DTD or XSD?
... tutorial is available here:
http://www.oasis-open.org/committees/download.php/29661/XSD%20and%20jCAM%20tutorial.pdf
And more information on the tool - which is using the OASIS Content Assembly Mechanism (CAM) standard to refactor your XSD into a more XSLT friendly structure - can be found from the...
File content into unix variable with newlines
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The assignment does not remove the newline characters, it's actually the echo doing this. You need simply put quotes around the string to maintain those newlines:
echo "$testvar"
This wil give the result you want. See the following transcript for a demo:
pax> cat num1.txt ; x=$(cat...
Setting up FTP on Amazon Cloud Server [closed]
...ce created and have associated an Elastic IP Address to it.
Step #1: Install vsftpd
SSH to your EC2 server. Type:
> sudo yum install vsftpd
This should install vsftpd.
Step #2: Open up the FTP ports on your EC2 instance
Next, you'll need to open up the FTP ports on your EC2 server. Log...
What is Java Servlet?
...a particular type of network request - most commonly an HTTP request. Basically servlets are usually used to implement web applications - but there are also various frameworks which operate on top of servlets (e.g. Struts) to give a higher-level abstraction than the "here's an HTTP request, write to...
Inserting HTML into a div
...t;/li></ol>';
Keep in mind that innerHTML is not accessable for all types of tags when using IE. (table elements for example)
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Semantic Diff Utilities [closed]
...bove approximation.
EDIT Jan 2010: Versions available for C++, C#, Java, PHP, and COBOL.
The website shows specific examples for most of these.
EDIT May 2010: Python and JavaScript added.
EDIT Oct 2010: EGL added.
EDIT Nov 2010: VB6, VBScript, VB.net added
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How to place and center text in an SVG rectangle
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An easy solution to center text horizontally and vertically in SVG:
Set the position of the text to the absolute center of the element in which you want to center it:
If it's the parent, you could just do x="50%" y ="50%".
If it's another element, x would be th...
Maximum Year in Expiry Date of Credit Card
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<?php
$y = gmdate("Y");
$x = 20;
$max = ($y + $x);
while ($y <= $max) {
echo "<option value='$y'>$y</option>";
$y = $y + 1;
}
?>
sh...