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What optimizations can GHC be expected to perform reliably?
... Haskell I could find on my computer:
Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version 7.4.1
Using binary package database: /usr/lib/ghc-7.4.2/package.conf.d/package.cache
wired-in package ghc-prim mapped to ghc-prim-0.2.0.0-7d3c2c69a5e8257a04b2c679c40e2fa7
wired-in package in...
How to sort a list of lists by a specific index of the inner list?
...>>> from operator import itemgetter
>>> L=[[0, 1, 'f'], [4, 2, 't'], [9, 4, 'afsd']]
>>> sorted(L, key=itemgetter(2))
[[9, 4, 'afsd'], [0, 1, 'f'], [4, 2, 't']]
It is also possible to use a lambda function here, however the lambda function is slower in this simple case
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What is the difference between ? and Object in Java generics?
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answered Mar 24 '09 at 19:19
Johannes WeissJohannes Weiss
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What would cause an algorithm to have O(log n) complexity?
...mber less than or equal to one? For 16, we have that
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
Notice that this ends up taking four steps to complete. Interestingly, we also have that log2 16 = 4. Hmmm... what about 128?
128 / 2 = 64
64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
8 / 2 = 4
4 / ...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
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How to redirect output of an entire shell script within the script itself?
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answered Nov 24 '08 at 19:11
Jonathan LefflerJonathan Leffler
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AngularJS - how to get an ngRepeat filtered result reference
...in (filteredItems = (items | orderBy:'order_prop' | filter:query | limitTo:4))">
{{item}}
</div>
Then $scope.filteredItems is accessible.
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Visual Studio, debug one of multiple threads
I have an application with 4 threads working the same code. However, when I step it jumps between the different threads. How can I lock it to one thread so the other threads are ignored for debugging?
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