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How is set() implemented?
...ython source code for set which, according to Achim Domma, is mostly a cut-and-paste from the dict implementation.
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stdlib and colored output in C
...which requires colored output. How can I make my output colored like emacs and bash do?
7 Answers
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Find kth smallest element in a binary search tree in Optimum way
...(log n) in the worst case on a balanced BST, or O(log n) on average for a random BST.
A BST requires O(n) storage, and it takes another O(n) to store the information about the number of elements. All BST operations take O(depth of node) time, and it takes O(depth of node) extra time to maintain the...
how to exclude null values in array_agg like in string_agg using postgres?
... non_canonical_users
FROM groups g
GROUP BY g.id
) s
Or, simpler and may be cheaper, using array_to_string which eliminates nulls:
SELECT
g.id,
array_to_string(
array_agg(CASE WHEN g.canonical = 'Y' THEN g.users ELSE NULL END)
, ','
) canonical_users,
array...
Extracting text from HTML file using Python
...ssentially the same output I would get if I copied the text from a browser and pasted it into notepad.
32 Answers
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How to pretty-print a numpy.array without scientific notation and with given precision?
...printoptions to set the precision of the output:
import numpy as np
x=np.random.random(10)
print(x)
# [ 0.07837821 0.48002108 0.41274116 0.82993414 0.77610352 0.1023732
# 0.51303098 0.4617183 0.33487207 0.71162095]
np.set_printoptions(precision=3)
print(x)
# [ 0.078 0.48 0.413 0.83 ...
Replace line break characters with in ASP.NET MVC Razor view
...espace.html has a good explanation of pre-line (I was only aware of nowrap and pre).
– James Skemp
Aug 12 '12 at 16:24
9
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Why is the gets function so dangerous that it should not be used?
...hat.)
It remained an official part of the language up to the 1999 ISO C standard, but
it was officially removed by the 2011 standard. Most C implementations still support it, but at least gcc issues a warning for any code that uses it.
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ZeroMQ的学习和研究(PHP代码实例) - C/C++ - 清泛网 - 专注C/C++及内核技术
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* Weather update server
* Binds PUB socket to tcp://*:5556
* Publishes random weather updates
* @author Ian Barber <ian (dot) barber (at) gmail (dot) com>
*/
// Prepare our context and publisher
$context = new ZMQContext ();
$publisher = $context->getSocket (ZMQ::SOCKET_PUB);
$publisher-...
Rebasing a branch including all its children
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Doesn't the "git branch" command output a star before the current branch, screwing up this script if one of the branches to rebase is currently checked out?
– Mark Lodato
Dec 20 '12 at 21:38
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