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Memoization in Haskell?
... `div` 2) +
mf (n `div` 3) +
mf (n `div` 4)
You can get an unmemoized f by using fix f
This will let you test that 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 = m...
Build.scala, % and %% symbols meaning
... Jonik
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answered Jul 4 '13 at 3:48
MingyuMingyu
24.2k1212 gold bad...
Check if a given Type is an Enum
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Ry-♦Ry-
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D3.js: How to get the computed width and height for an arbitrary element?
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edited Feb 4 '15 at 11:50
answered Feb 24 '14 at 15:04
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how to configure apache server to talk to HTTPS backend server?
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194
Your server tells you exactly what you need : [Hint: SSLProxyEngine]
You need to add that direc...
how to permit an array with strong parameters
...ses has_many :through associations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
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Why can I create a class named “var”?
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edited Apr 16 '16 at 9:45
answered May 11 '12 at 9:43
Sa...
What is “Linting”?
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edited Dec 14 '11 at 11:21
answered Dec 14 '11 at 11:16
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What is the difference between 'content' and 'text'
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147
The developer interface has more details:
r.text is the content of the response in Unicode, an...
How can I save an image to the camera roll?
I am new to Xcode (using 4.3) and am not sure how to save an image to the device's camera roll. All that I have done so far is set up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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