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How is this fibonacci-function memoized?
...e re-writes:
fib1 = f fib2 n = f n fib3 n = f n
where where where
f i = xs !! i f i = xs !! i f i = xs !! i
xs = map fib' [0..] xs = map fib...
Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
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132
So why isn't that called "using the stack to trigger cleanup" (UTSTTC:)?
RAII is telling y...
Can't find the PostgreSQL client library (libpq)
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348
$ sudo su
$ env ARCHFLAGS="-arch x86_64" gem install pg
Building native extensions. This co...
MySQL error 2006: mysql server has gone away
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32
It may be easier to check if the connection and re-establish it if needed.
See PHP:mysqli_ping...
How do I create a namespace package in Python?
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TL;DR:
On Python 3.3 you don't have to do anything, just don't put any __init__.py in your namespace package directories and it will just work. On pre-3.3, choose the pkgutil.extend_path() solution over the pkg_resources.declare_namespace() o...
Rails: Using build with a has_one association in rails
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361
The build method signature is different for has_one and has_many associations.
class User &l...
Variable is accessed within inner class. Needs to be declared final
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133
If you don't want to make it final, you can always just make it a global variable.
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get client time zone from browser [duplicate]
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edited Mar 21 '17 at 12:53
Murali
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answered Jan 24 '12 at 10:00
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How can you set class attributes from variable arguments (kwargs) in python
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answered Nov 18 '11 at 18:39
fqxpfqxp
5,67333 gold badges1818 silver badges3636 bronze badges
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Diff output from two programs without temporary files
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213
Use <(command) to pass one command's output to another program as if it were a file name. Bas...