select avg(reputation) from users returns 130 in 77ms on SEDE, for Stack Overflow.
The Stack Exchange Data Explorer lets you write some pretty complicated queries, too, and if you select certain patterns of column data types, the thing can really help you dissect how your favorite beta site is d...
Im new to html and all the other web stuff. I am starting to learn the basics of html but I have a idea for a website I want to create just to practice and it omegle has exactly what I want but im not sure how to do it. Omegle has the video cam chat and where you can type to each other and im not...
There's a lot of good info in the tag synonym announcement on the Stack Overflow blog.
What are tag synonyms?
A tag synonym is usually a tag that has exactly the same meaning as some other tag, such as algorithm and algorithms. In some cases, tags that are subsets of other tags will also be con...
I have written a java class to replace text in file, the file contains database configurations and is as follows:
test.properties
#local
db.url=jdbc:oracle:thin:@localhost:test
#db.user=testa
#db.password=testa
db.user=testb
db.password=testb
#db.user=testc
#db.password=testc
# is a commen...
I am trying to process an audio library file which is about 350 KB. My application processes each song on the file gets its meta-data and displays it in a List Box.
The problem is that it takes too much time (about 1-2 mins). I need to make it faster like in the Windows Media Player. I tried to...
I am trying to install Festival onto my Macbook Pro running Mavericks. I tried installing it on my own, but that didn't work.
Unfortunately, I can't seem to find any up-to-date instructions out there on how to do this properly. There are these dated instructions from 2007, and these slightly le...
At the moment is my code secure for SQL injections and so fourth? I still need to hash passwords and make sure fields are valid and so fourth.
<?php
try{
$handler = new PDO('mysql:host=localhost;dbname=s','root', '*');
$handler->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRM...
I am not sure if I should be using recursion or not or if it even helps in increasing the performance of my algorithm. I feel as though I am creating and replacing too many arrays by calling my inner rotate() function.
Please refer to the JSFiddle I have provided for details and clarification o...
$$
\begin{aligned}
M &= \text{All term frequencies}
\\
f(x) &= \text{Frequency of term }x
\\
f(y) &= \text{Frequency of term }y
\\
f(x,y) &= \text{Frequency of combined } x \text{ and } y
\\
NGD(x,y) &= \frac
{max(\log{f(x)}, \log{f(x)}) - log{f(x,y)}}
{log{M} - min(\log{f(x)}, ...
A function that takes a double as input and returns a char pointer would look like this:
char * foo(double arg);
Where arg is your input double, foo is the name of the function, and char * is the return type, a char pointer.
char (*foo)(double arg);
Declares a function pointer to a function...
I implement the following nub' or give distinct elements of list function:
nub' :: (Eq a) => [a] -> [a]
nub' [] = []
nub' xs = nubHelper xs []
nubHelper :: (Eq a) => [a] -> [a] -> [a]
nubHelper [] acc = acc
nubHelper (y:ys) acc = if(contains y acc)
then nubHelper ...
I've created a spec that how a user confirms his account. It tests the following scenarios:
While this code is completely untested (wrote it all in the browser) I don't see why it wouldn't work. However, these are my concerns:
It gets pretty hard to follow. I'm just testing a few scenarios her...
This code basically saves an uploaded file to the server. I am wandering is there anything that I can do to tighten this code up. I am very new to F# so I'm still having trouble breaking away from the c# way of doing things. Here's the code:
/// Create file paths
/// Returns a tuple (server pat...
I'm trying to implement a template that takes a container as parameter. The template has a getnext method that cycles through the elements in the parameter. Take note I'm not using C++ 11.
Here's my code:
header >>>
#pragma once
template<template<class, class> class TContainer, class TObject>
...
I had bunch of images and when i click on each image i need to play a diffrent sound,and iam stuggling a lot to get it.kindly help me out.`
$(document).on("pageinit","#pageone" ,function(){
$('#pageone').append('');
addDotEvents();
}
function addD...
There are quite a few FizzBuzz solutions being Code Reviewed here, but I'd still like to see expert opinion on this one:
for x in range(1, 101): print 'Fizz'[x%3*4:] + 'Buzz'[x%5*4:] or x
Or, if you prefer:
for x in range(1, 101):
print 'Fizz'[x%3*4:] + 'Buzz'[x%5*4:] or x
Credits: t...
Resharper complain if you have code like this:
border-width: 0px 1px 1px 0px;
and insists that units should be removed from zeroes as they are redundant. They are redundant, that is absolutely true, but I don't like inconsistency that is introduced by removal of units. You get code like this
...
I am sending header in the capital case
X-Authorization: fehfehfehfiu
but in the java code when i am doing
HttpServletRequest request
String xAuthorization = request.getHeader("x-authorization");
I am successfully able to get the header value fehfehfehfiu.This behaviour is not clear to me.
A...
Problem link. This is some rough code -- this one was a lot harder than I expected it to be. Please help me optimize!
from timeit import default_timer as timer
start = timer()
fractions_that_work = []
def a_common_element(list_a, list_b):
count = 0
common = 0
for m in list_a:
...
