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Why is inserting in the middle of a linked list O(1)?
According to the Wikipedia article on linked lists , inserting in the middle of a linked list is considered O(1). I would think it would be O(n). Wouldn't you need to locate the node which could be near the end of the list?
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How to tell which version of a gem a rails app is using
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This will only work if the gem as been specified in the environment.rb file. If the developer just required it somewhere, rake gems won't work.
– John Hyland
Oct 26 '09 at 19:36
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Simulate airplane mode in iPhone Simulator
Is there any way to simulate airplane mode in the iPhone Simulator?
4 Answers
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How do you handle multiple submit buttons in ASP.NET MVC Framework?
Is there some easy way to handle multiple submit buttons from the same form? For example:
35 Answers
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Test if a vector contains a given element
How to check if a vector contains a given value?
7 Answers
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HttpWebRequest using Basic authentication
... mimics the "basic auth request" we're used to seeing when setting up IIS for this behavior.
9 Answers
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Why is the asterisk before the variable name, rather than after the type?
...iable2;
it may seem obvious that both are of type int*, but that is not correct as myVariable2 has type int.
Therefore, the first programming style is more intuitive.
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Difference between abstraction and encapsulation?
...at related, types of data. The classical example of abstraction is C’s qsort function to sort data:
The thing about qsort is that it doesn't care about the data it sorts — in fact, it doesn’t know what data it sorts. Rather, its input type is a typeless pointer (void*) which is just C’s way...
Is there a performance gain in using single quotes vs double quotes in ruby?
...know if using double quotes instead of single quotes in ruby decreases performance in any meaningful way in ruby 1.8 and 1.9.
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Detecting a redirect in ajax request?
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The AJAX request never has the opportunity to NOT follow the redirect (i.e., it must follow the redirect). More information can be found in this answer https://stackoverflow.com/a/2573589/965648
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