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How to trace the path in a Breadth-First Search?
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You should have look at http://en.wikipedia.org/wiki/Breadth-first_search first.
Below is a quick implementation, in which I used a list of list to represent the queue of paths.
# graph is in adjacent list representation
graph = {
'1': ...
Opening Android Settings programmatically
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vagrant up failed, /dev/vboxnetctl: no such file or directory
Can be useful, I found this error. The common solution is reinstall virtualbox but there are a better way.
8 Answers
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NPM cannot install dependencies - Attempt to unlock something which hasn't been locked
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As per photusenigma at: https://github.com/npm/npm/issues/4815
Run these commands in a terminal window (note - DON'T replace the $USER part...thats a linux command to get your user!):
sudo chown -R $USER ~/.npm
sudo chown -R $USER /usr/local/lib/node_modules
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How do you add an in-app purchase to an iOS application?
...r is written in Objective-C
App Store Connect
Go to appstoreconnect.apple.com and log in
Click My Apps then click the app you want do add the purchase to
Click the Features header, and then select In-App Purchases on the left
Click the + icon in the middle
For this tutorial, we are going to be addi...
What is an MvcHtmlString and when should I use it?
...t syntax <%: %>. Essentially, <%: foo %> translates to <%= HttpUtility.HtmlEncode(foo) %>. The team is trying to get developers to use <%: %> instead of <%= %> wherever possible to prevent XSS.
However, this introduces the problem that if a code nugget already encode...
Test if a variable is set in bash when using “set -o nounset”
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Structs in Javascript
...a retyping is still an issue, as there are more jumps than copying the new ___ ( , , , ) archetype. Also, there is no readability. Once you get used to coding, new READABLE_PART(ignore everything in here) becomes very scannable and self documenting, as opposed to {read: "ignore", everything: "igno...
PHP PDO returning single row
...ase reponse.
You can do more optimizing by setting the fetching type, see http://www.php.net/manual/de/pdostatement.fetch.php. If you access it only via column names you need to numbered array.
Be aware of the ORDER clause. Use ORDER or WHERE to get the needed row. Otherwise you will get the first...
Applying function with multiple arguments to create a new pandas column
...eUploader: {
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