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What is pseudopolynomial time? How does it differ from polynomial time?
...ng TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
Pagination in a REST web application
...something there shouldn't be something else on the same URI. If you delete all products of page X - page X may still be valid but contains now the products from page X + 1. So the URI for page X has become the URI for page X + 1 if you see it in "product resource view".
– Fionn...
PHP script - detect whether running under linux or Windows?
...TH_SEPARATOR>":" returns true for Windows too (PATH_SEPARATOR is ":" on all other OSs).
– Titus
Jan 8 '17 at 12:45
...
Static nested class in Java, why?
...ike any other top-level class. In effect, a static nested class is behaviorally a top-level class that has been nested in another top-level class for packaging convenience.
There is no need for LinkedList.Entry to be top-level class as it is only used by LinkedList (there are some other interface...
require file as string
...ondering how I can import any file as a string. Lets say I have a txt file all I want is to load it into a variable as such.
...
Making heatmap from pandas DataFrame
...t instead of %matplotlib inline and finish with plt.show() in order to actually see the plot.
– tsveti_iko
Jul 23 '19 at 15:19
...
Use 'import module' or 'from module import'?
...eadability: Any name conflicts will show themselves in (unit) testing. But all the names you use from the imported module will be bare, with nary a hint were they come from. I absolutely loathe "import *".
– Jürgen A. Erhard
Dec 26 '09 at 19:59
...
How do I mock an open used in a with statement (using the Mock framework in Python)?
...ager (from the examples page in the mock documentation):
>>> open_name = '%s.open' % __name__
>>> with patch(open_name, create=True) as mock_open:
... mock_open.return_value = MagicMock(spec=file)
...
... with open('/some/path', 'w') as f:
... f.write('something')
...
Using Mockito's generic “any()” method
...e able to compile lambda expressions, but it improves type inferences generally.
Primitive types
This doesn't work with primitive types, unfortunately:
public interface IBar {
void doPrimitiveStuff(int i);
}
verify(bar).doPrimitiveStuff(any()); // Compiles but throws NullPointerException
v...
Python list iterator behavior and next(iterator)
...n't work if n is odd - StopIteration excepetio nis raised when next(a) is called after the list is exausted.
– Raf
Mar 1 '19 at 8:55
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