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List of Big-O for PHP functions
...e noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
...
What is the best way to compute trending topics or tags?
...t is abnormally falling. So once you calculate the z-score for all the candidate trends the highest 10 z-scores will relate to the most abnormally increasing z-scores.
Please see Wikipedia for more information, about z-scores.
Code
from math import sqrt
def zscore(obs, pop):
# Size of popula...
- how to allow only one item selected?
... select multiple, but set a size to it, such as:
<select name="user" id="userID" size="3">
<option>John</option>
<option>Paul</option>
<option>Ringo</option>
<option>George</option>
</select>
Working example:
https://...
Could not instantiate class named MKMapView
I may be doing something really stupid here as I've done it before and it worked and now...
9 Answers
...
How to use Sphinx's autodoc to document a class's __init__(self) method?
...
@MichaelMrozek: I am wondering about that, too... Did you understand the high upvote rate of this answer? At first, it looks like an answer that should be purged.
– lpapp
Sep 8 '14 at 17:34
...
Microsecond timing in JavaScript
...ll be most probably using Date.now(), so this is still the best option considering the IE9 and it's millions of users, why mixing third-party library then
– Vitaliy Terziev
Aug 28 '16 at 13:54
...
What algorithm gives suggestions in a spell checker?
...ement a spelling corrector. It's basicly a brute force approach trying candidate strings with a given edit distance. (Here are some tips how you can improve the spelling corrector performance using a Bloom Filter and faster candidate hashing.)
The requirements for a spell checker are weaker. You ha...
What is “rvalue reference for *this”?
..." of the function†:
// t.cpp
#include <iostream>
struct test{
void f() &{ std::cout << "lvalue object\n"; }
void f() &&{ std::cout << "rvalue object\n"; }
};
int main(){
test t;
t.f(); // lvalue
test().f(); // rvalue
}
Output:
$ clang++ -std=c++0x -stdlib...
How to correctly close a feature branch in Mercurial?
...esults back to the default branch and close feature-x in order to get rid of it in the output of hg branches .
4 Answe...
RSA Public Key format
...1 a9 9b
60 5a 0e e5 4f 2d e6 5f 2e 71 f3 7e 92 8f fe 8b
The closest validation of my theory i can find it from RFC 4253:
The "ssh-rsa" key format has the following specific encoding:
string "ssh-rsa"
mpint e
mpint n
Here the 'e' and 'n' parameters form the signature k...