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Solving “Who owns the Zebra” programmatically?
... pip install python-constraint
To install manually:
download:
$ wget https://pypi.python.org/packages/source/p/python-constraint/python-constraint-1.2.tar.bz2#md5=d58de49c85992493db53fcb59b9a0a45
extract (Linux/Mac/BSD):
$ bzip2 -cd python-constraint-1.2.tar.bz2 | tar xvf -
extract (Windows, ...
Can I mask an input text in a bat file?
...:: Hidden.cmd
::Tom Lavedas, 02/05/2013, 02/20/2013
::Carlos, 02/22/2013
::https://groups.google.com/forum/#!topic/alt.msdos.batch.nt/f7mb_f99lYI
@Echo Off
:HInput
SetLocal EnableExtensions EnableDelayedExpansion
Set "FILE=%Temp%.\T"
Set "FILE=.\T"
Keys List >"%File%"
Set /P "=Hidden text endin...
Invalidating JSON Web Tokens
...es with regards to attacks using tokens, this post addresses the question: https://github.com/dentarg/blog/blob/master/_posts/2014-01-07-angularjs-authentication-with-cookies-vs-token.markdown
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How can I declare and use Boolean variables in a shell script?
...en
echo 'Be careful not to fall off!'
fi
Original Answer
Caveats: https://stackoverflow.com/a/21210966/89391
the_world_is_flat=true
# ...do something interesting...
if $the_world_is_flat ; then
echo 'Be careful not to fall off!'
fi
From: Using boolean variables in Bash
The reason th...
How to make Twitter Bootstrap menu dropdown on hover rather than click
...ransparent;
left: 10px;
top: 11px;
left: -6px;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet" />
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container-flu...
What does O(log n) mean exactly?
...t, you'll want to have a general idea of Logarithm, which you can get from https://en.wikipedia.org/wiki/Logarithm . Natural science use e and the natural log. Engineering disciples will use log_10 (log base 10) and computer scientists will use log_2 (log base 2) a lot, since computers are binary ba...
How do popular apps authenticate user requests from their mobile app to their server?
...Username and passwords can be safe when placed in SharedPreferences.
Using https in connecting to a server should be good enough as well.
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What does Docker add to lxc-tools (the userspace LXC tools)?
...ture projects. And so on.
Sharing. Docker has access to a public registry (https://registry.hub.docker.com/) where thousands of people have uploaded useful containers: anything from redis, couchdb, postgres to irc bouncers to rails app servers to hadoop to base images for various distros. The regist...
Conveniently Declaring Compile-Time Strings in C++
...t: " << (str_hello * str_world).chars << std::endl;
}
https://ideone.com/8Ft2xu
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Fastest way to iterate over all the chars in a String
...is ever in a production environment (not advised), read this first: http://www.javaspecialists.eu/archive/Issue237.html
Starting from Java 9, the solution as described won't work anymore, because now Java will store strings as byte[] by default.
SECOND UPDATE: As of 2016-10-25, on my AMDx64 8core an...