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How do I find the duplicates in a list and create another list with them?
...yields [1, 2, 5]
Just in case speed matters, here are some timings:
# file: test.py
import collections
def thg435(l):
return [x for x, y in collections.Counter(l).items() if y > 1]
def moooeeeep(l):
seen = set()
seen_add = seen.add
# adds all elements it doesn't know yet to...
How can I add reflection to a C++ application?
...__declspec(dllexport) and you can retrieve the information from a the .map file if you enable creation of such during build.
– Orwellophile
Oct 10 '17 at 13:17
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How to read contacts on Android 2.0
...name="android.permission.READ_CONTACTS"/>
to your AndroidManifest.xml file, then you can loop through your phone contacts like this:
Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null);
while (cursor.moveToNext()) {
String contactId = ...
What does “Memory allocated at compile time” really mean?
...at address x, and all the hard coded addresses contained in the executable file will be incremented by x bytes, so that variable a in the example will be at address x, b at address x+33 and so on.
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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...fun！），有一个 App Inventor 扩展，它提供了一个带有 TaifunFile.copy 操作的组件 TaifunFile。可以从此处下载扩展。您应该在构建 Expeditions 和 Virtuality 演示之前安装扩展。有关如何使用 App Inventor 扩展，请参阅 App Inventor 扩展文档。
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How to implement a rule engine?
...\System.dll");
param.ReferencedAssemblies.Add(@"C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll");
var compileResults = provider.CompileAssemblyFromSource(param, source);
var output = compileResults.Output;
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...xtension module _euler12.pyx, which I import and call from a normal python file. The _euler12.pyx is essentially the same as your version, with some additional static type declarations. The setup.py has the normal boilerplate to build the extension, using python setup.py build_ext --inplace.
# _eul...
Learning assembly [closed]
...ecimal or ASCII), make changes, and selectively execute COM, EXE and other file types.
It also has several subcommands which are used to access specific disk
sectors, I/O ports and memory addresses. MS-DOS Debug runs at a
16-bit process level and therefore it is limited to 16-bit computer prog...
Optional Parameters with C++ Macros
...that debugging via trace output gets quite a bit easier with things like __FILE__ and __LINE__ and such...
– Christian Severin
Mar 25 '15 at 14:21
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Best Practices: Salting & peppering passwords?
... application server), that hiding pepper in the source code (in our config file) would provide additional security.
– Glitch Desire
Jun 3 '13 at 7:38
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