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Why is my program slow when looping over exactly 8192 elements?
...rogram in question. The matrix img[][] has the size SIZE×SIZE, and is initialized at:
2 Answers
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How Drupal works? [closed]
Could someone provide a architectural overview of the Drupal 7 control flow? Perhaps in the sense of a flowchart about how a page gets generated. What additional resources would you suggest consulting with regards to how Drupal works?
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Should you ever use protected member variables?
...ough.
If a developer comes along and subclasses your class they may mess it up because they don't understand it fully. With private members, other than the public interface, they can't see the implementation specific details of how things are being done which gives you the flexibility of changing...
Why is “final” not allowed in Java 8 interface methods?
...esign goal is interface evolution, not "turn interfaces into (mediocre) traits". While there's some overlap between the two, and we tried to be accommodating to the latter where it didn't get in the way of the former, these questions are best understood when viewed in this light. (Note too that cl...
If strings are immutable in .NET, then why does Substring take O(n) time?
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UPDATE: I liked this question so much, I just blogged it. See Strings, immutability and persistence
The short answer is: O(n) is O(1) if n does not grow large. Most people extract tiny substrings from tiny strings, so how the complexity grows asymptotically is completely irr...
Can you call Directory.GetFiles() with multiple filters?
...e types, such as mp3 's and jpg 's. I have tried both of the following with no luck:
26 Answers
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Should I use multiplication or division?
...0m7.997s
user 0m7.516s
sys 0m0.036s
=> no real difference
LuaJIT:
time luajit -O -e 'for i=1,1e8 do t=12341234234.234 / 2.0 end'
real 0m1.921s
user 0m1.668s
sys 0m0.004s
time luajit -O -e 'for i=1,1e8 do t=12341234234.234 * 0.5 end'
real 0m1.843s
user 0m1.676s
sys ...
How do servlets work? Instantiation, sessions, shared variables and multithreading
...ServletContext
When the servlet container (like Apache Tomcat) starts up, it will deploy and load all its web applications. When a web application is loaded, the servlet container creates the ServletContext once and keeps it in the server's memory. The web app's web.xml and all of included web-frag...
Shortest distance between a point and a line segment
... the shortest distance between a point and a line segment. Feel free to write the solution in any language you want; I can translate it into what I'm using (Javascript).
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Ajax success event not working
I have a registration form and am using $.ajax to submit it.
16 Answers
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