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What's the difference between backtracking and depth first search?
...ing is a more general purpose algorithm.
Depth-First search is a specific form of backtracking related to searching tree structures. From Wikipedia:
One starts at the root (selecting some node as the root in the graph case) and explores as far as possible along each branch before backtracking....
JSON datetime between Python and JavaScript
I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
...
Strange \n in base64 encoded string in Ruby
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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Convert SVG image to PNG with PHP
...g
);
}
$im->readImageBlob($svg);
/*png settings*/
$im->setImageFormat("png24");
$im->resizeImage(720, 445, imagick::FILTER_LANCZOS, 1); /*Optional, if you need to resize*/
/*jpeg*/
$im->setImageFormat("jpeg");
$im->adaptiveResizeImage(720, 445); /*Optional, if you need to resi...
Using an HTML button to call a JavaScript function
...:
if(navigator.appName == 'Netscape')
{
vesdiameter = document.forms['Volume'].elements['VesDiameter'].value;
// more stuff snipped
}
else
{
vesdiameter = eval(document.all.Volume.VesDiameter.value);
// more stuff snipped
}
I'm on Chrome, so navigator...
Is there XNOR (Logical biconditional) operator in C#?
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$window.unbind('scroll', onScroll);
}
};
...
Https Connection Android
...ements javax.net.ssl.X509TrustManager, yet none of the methods actually perform any work, get a sample here.
Good Luck!
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Test if a class has an attribute?
...
@Marc- I agree about that the difference in performance would probably not be noticeable in a unit test. I'd get the attribute if I needed to use it, which as you say is the scenario in most cases. I recently used IsDefined in a framework I was writing to exclude a column...
iOS 7: UITableView shows under status bar
...ibrary.
I disagree with everyone who is trying to solve this by using any form of "Magic Numbers" e.g. "use a delta of 20px". This kind of tightly coupled programming is definitely not what Apple wants us to do here.
I have discovered two solutions to this problem:
Preserving the UITableViewCont...
String concatenation vs. string substitution in Python
...itution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
...