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NullPointerException accessing views in onCreate()
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How is set() implemented?
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@ClaudiuCreanga this is an old comment, but just to clarify: big-O notation tells you upper bounds on the growth rate of things, but you can upper bound the growth of average case performance and you can separately upper bound the growth of worst case perf...
Streaming a video file to an html5 video player with Node.js so that the video controls continue to
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Propagate all arguments in a bash shell script
...me Is it possible to have shell script that can see the true original command line complete with quotes or escaped strings?
– Mark Edington
Nov 24 '13 at 1:33
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
...y running other versions of your code. Consider explicitly writing out the computations, instead of using a function in your loop
tic
Soln3 = ones(T, N);
for t = 1:T
for n = 1:N
Soln3(t, n) = 3*x(t, n)^2 + 2*x(t, n) - 1;
end
end
toc
Time to compute on my computer:
Soln1 1.158446...
Using scanf() in C++ programs is faster than using cin?
...ream version: 24.3 seconds
scanf version: 6.4 seconds
Changing the compiler's optimization settings didn't seem to change the results much at all.
Thus: there really is a speed difference.
EDIT: User clyfish points out below that the speed difference is largely due to the iostream I/O fu...
Turn a number into star rating display using jQuery and CSS
...png and star_gray.png. But as the stars have a fixed height, we can easily combine them into one image. This utilizes the CSS sprite technique.
Now, as the spans are nested, they are automatically overlayed over each other. In the default case, when the width of both spans is 80px, the yellow stars...
Difference between len() and .__len__()?
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66
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Can you call Directory.GetFiles() with multiple filters?
...s => s.EndsWith(".mp3") || s.EndsWith(".jpg"));
edit: Please read the comments. The improvement that Paul Farry suggests, and the memory/performance issue that Christian.K points out are both very important.
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Decode HTML entities in Python string?
...gt; print(h.unescape('£682m'))
£682m
You can also use the six compatibility library to simplify the import:
>>> from six.moves.html_parser import HTMLParser
>>> h = HTMLParser()
>>> print(h.unescape('£682m'))
£682m
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