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Fast permutation -> number -> permutation mapping algorithms
...he solution after these years. LOL, I just join this site, so ...
Check my Java Permutation Class. You can base on an index to get a symbol permutation, or give a symbol permutation then get the index.
Here is my Premutation Class
/**
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Where is Android Studio layout preview?
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Select MainActivity.java file from the left pane, as shown in the red colored rectangle.
Left click the XML Tag icon as shown in the red colored circle.
Select the "activity_main.xml(layout)" option shown highlighted in the below figure.
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In a URL, should spaces be encoded using %20 or +? [duplicate]
...f using URLEncoder which encodes to application/x-www-form-urlencoded, use java.net.URI, which encodes in the true percent encoding.
– Su Zhang
Mar 25 '14 at 18:04
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How to delete a workspace in Eclipse?
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Just go to the \eclipse-java-helios-SR2-win32\eclipse\configuration.settings directory and change or remove org.eclipse.ui.ide.prefs file.
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Subclipse svn:ignore
...t adding src, subclipse was not allowing me to do so. But when I added the java folder to version control, the "add to svn:ignore..." was enabled for webapp.
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Calculate difference between two dates (number of days)?
I see that this question has been answered for Java , JavaScript , and PHP , but not C#. So, how might one calculate the number of days between two dates in C#?
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How do I get the n-th level parent of an element in jQuery?
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A faster way is to use javascript directly, eg.
var parent = $(innerdiv.get(0).parentNode.parentNode.parentNode);
This runs significantly faster on my browser than chaining jQuery .parent() calls.
See: http://jsperf.com/jquery-get-3rd-level-pa...
How do I cancel a build that is in progress in Visual Studio?
... stop a build again and forget keyboard shortcut. Some devs switch between Java/.NET worlds every couple yrs. @igbogtiz said it better than I.
– Skychan
Feb 12 '16 at 19:59
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Coarse-grained vs fine-grained
...which allows them to apply finer grain communication mechanisms.
Source: Java concurrency in practice
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How can I round down a number in Javascript?
How can I round down a number in JavaScript?
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