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Can I do a synchronous request with volley?
...ead is blocked by the future.get() then the app will stall or run into timeout for sure if set so.
– r00tandy
Jun 1 '16 at 5:11
...
Representing and solving a maze given an image
...questions? Items 1-4 from my list are the manual processing I was asking about. Item 5 is a BFS - the very basic algorithm for graphs, but it can be applied to image directly, without converting pixels to vertices and neighbors to edges.
– Mikhail
Oct 21 '12 at...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
... floating
point computation in integer - it took
a long time to figure out how and why
this works, and I can't remember the
details anymore.
A slightly better constant, developed by an expert mathematician (Chris Lomont) trying to work out how the original algorithm worked is:
float InvSq...
Why does my 'git branch' have no master?
I'm a git newbie and I keep reading about a "master" branch. Is "master" just a conventional name that people used or does it have special meaning like HEAD ?
...
The simplest way to resize an UIImage?
... caution that my code that uses this generates malloc errors elsewhere without an additional retain, which is clearly my fault somehow :-).
– Paul Lynch
May 23 '10 at 6:29
26
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Reverting a single file to a previous version in git [duplicate]
... do is this:
# get the version of the file from the given commit
git checkout <commit> path/to/file
# and commit this modification
git commit
(The checkout command first reads the file into the index, then copies it into the work tree, so there's no need to use git add to add it to the inde...
How can I sort a dictionary by key?
... 3:0}
In [3]: od = collections.OrderedDict(sorted(d.items()))
In [4]: od
Out[4]: OrderedDict([(1, 89), (2, 3), (3, 0), (4, 5)])
Never mind the way od is printed out; it'll work as expected:
In [11]: od[1]
Out[11]: 89
In [12]: od[3]
Out[12]: 0
In [13]: for k, v in od.iteritems(): print k, v
...
How to benchmark efficiency of PHP script
... server are you using? As an example, I can make nginx + PHP-FPM seriously out perform mod_php + Apache, which in turn gets trounced for serving static content by using a good CDN.
The next thing to consider is what you are trying to optimise for?
Is the speed with which the page renders in the...
Read whole ASCII file into C++ std::string [duplicate]
...
Update: Turns out that this method, while following STL idioms well, is actually surprisingly inefficient! Don't do this with large files. (See: http://insanecoding.blogspot.com/2011/11/how-to-read-in-file-in-c.html)
You can make a stream...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
...
I had the same error and it turned out to be a circular dependency between a module or class loaded by the settings and the settings module itself. In my case it was a middleware class which was named in the settings which itself tried to load the settings.
...