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Finding all cycles in a directed graph
... 1 then there is an infinite number of those. For example A-B-A, A-B-A-B-A etc. Or it may be possible to join together 2 cycles into an 8-like cycle etc., etc... The meaningful approach is to look for all so called simple cycles - those that do not cross themselves except in the start/end point. The...
What is the difference between supervised learning and unsupervised learning? [closed]
...is (round skin-like-colored disk, with dark area where you expect the eyes etc). A machine learning algorithm would not have such coded definition, but would "learn-by-examples": you'll show several images of faces and not-faces and a good algorithm will eventually learn and be able to predict wheth...
Strip HTML from strings in Python
When printing a line in an HTML file, I'm trying to find a way to only show the contents of each HTML element and not the formatting itself. If it finds '<a href="whatever.com">some text</a>' , it will only print 'some text', '<b>hello</b>' prints 'hello', etc. How would o...
psycopg2: insert multiple rows with one query
...bulk inserts by far. Here's a gist I made containing a class named IteratorFile which allows an iterator yielding strings to be read like a file. We can convert each input record to a string using a generator expression. So the solution would be
args = [(1,2), (3,4), (5,6)]
f = IteratorFile(("{}\t{...
Getting only Month and Year from SQL DATE
... want the result to be a date
- But you want to 'discard' the Days, Hours, etc
- Leaving a year/month only date field
SELECT
DATEADD(MONTH, DATEDIFF(MONTH, 0, <dateField>), 0) AS [year_month_date_field]
FROM
<your_table>
This gets the number of whole months from a base date (0...
What is a segmentation fault?
...
With shared memory/memory mapped files it is possible for someone else to mess with your memory. In WIN32 there are nasty API's like 'WriteProcessMemory' too!
– paulm
Feb 17 '14 at 23:46
...
Junit: splitting integration test and Unit tests
...ps>
</configuration>
</plugin>
If you wrap this in a profile with id IT, you can run only the fast tests using mvn clean install. To run just the integration/slow tests, use mvn clean install -P IT.
But most often, you will want to run the fast tests by default and all tests with...
What is the difference between min SDK version/target SDK version vs. compile SDK version?
...eans of compiling I suppose) uses to make your app when you publish a .apk file. This is useful for testing your application as it is a common need to compile your app as you develop it. As this will be the version to compile to an APK, it will naturally be the version of your release. Likewise, it ...
How well is Unicode supported in C++11?
...still valid, right? If I "just" want my users to be able to open and write files no matter their system settings I can ask them the file name, store it in a std::string and everything should work properly, even on Windows? Sorry to ask that (again)...
– Uflex
J...
Python, remove all non-alphabet chars from string
...apostrophe might be okay in your input...)
regex = re.compile('[,\.!?]') #etc.
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