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Memoization in Haskell?
... f does what you mean for small values of f by calling, for example: fix f 123 = 144
We could memoize this by defining:
f_list :: [Int]
f_list = map (f faster_f) [0..]
faster_f :: Int -> Int
faster_f n = f_list !! n
That performs passably well, and replaces what was going to take O(n^3) time...
What does PermGen actually stand for?
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Which answer was the accepted one at the time you posted this comment? The currently accepted answer (this one, by "Tom Hawtin - tackline") looks accurate to me. Might make sense to edit your comment so it doesn't lead people to mistrust the current accepted answer?
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How to handle both a single item and an array for the same property using JSON.net
... "email" :[ "a@b.de","a@c.de"],
"name": "Andre",
"something" :["232","123"]
}
My Class i defined:
[JsonConverter(typeof(AnonyObjectConverter))]
public class AnonymObject
{
public AnonymObject()
{
fields = new Dictionary<string, string>();
list = new List<st...
Use of Finalize/Dispose method in C#
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123
The official pattern to implement IDisposable is hard to understand. I believe this one is bet...
How can I indent multiple lines in Xcode?
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Note that these are commonly used Mac OS X key bindings thus you can indent using CMD-] and CMD-[ in, for example, Mail.app.
– Gregory Cosmo Haun
Jun 15 '10 at 23:57
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What are the differences between a pointer variable and a reference variable in C++?
...e of that object becomes the lifetime of the reference.
std::string s1 = "123";
std::string s2 = "456";
std::string s3_copy = s1 + s2;
const std::string& s3_reference = s1 + s2;
In this example s3_copy copies the temporary object that is a result of the concatenation. Whereas s3_reference in...
Problems with entering Git commit message with Vim
OS: Windows
5 Answers
5
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Missing styles. Is the correct theme chosen for this layout?
...library in the manifest file. I even created style is styles.xml, I have chosen Google Apis build target as well.
21 Answ...
Android Studio: Default project directory
... a generic default folder at a location something similar to (dependent on OS - Ubuntu here):
10 Answers
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How does the ARM architecture differ from x86? [closed]
...SC (Complex Instruction Set Computing) one.
The core difference between those in this aspect is that ARM instructions operate only on registers with a few instructions for loading and saving data from / to memory while x86 can operate directly on memory as well. Up until v8 ARM was a native 32 bit ...