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What is pseudopolynomial time? How does it differ from polynomial time?
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To understand the difference between polynomial time and pseudopolynomial time, we need to start off by formalizing what "polynomial time" means.
The common intuition for polynomial time is "time O(nk) for some k." For example, select...
Get generated id after insert
I'm using the SQLite with Android, and I want to know the best way to get the generated id of the row I inserted.
5 Answers...
Visual Studio: Relative Assembly References Paths
... directory, is there any way to add it relatively, so that when checked in and out of a repository it is referenced in projects correctly?
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Index on multiple columns in Ruby on Rails
...:user_id, :article_id], you can perform a fast query on user_id or user_id AND article_id, but NOT on article_id.
Your migration add_index line should look something like this:
add_index :user_views, [:user_id, :article_id]
Question regarding 'unique' option
An easy way to do this in Rails ...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...pplications, the synchronously multithreaded one (based on HttpWebRequest) and asynchronous I/O one (based on HTTP client) produced similar results: about 10 seconds to execute using around 3% of the CPU and 30 MB of memory. The only difference between the two testers was that the multithreaded one ...
git push to specific branch
...am still having difficulty figuring out how I should write my git push command. As mentioned in the question link, it's not clear from the documentation.
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Change Bootstrap tooltip color
...Tooltip on bottom"
class="red-tooltip">Tooltip on bottom</a>
And in the CSS:
.tooltip-arrow,
.red-tooltip + .tooltip > .tooltip-inner {background-color: #f00;}
jsFiddle
Moeen MH: With the most recent version of bootstrap, you may need to do this in order to get rid of black ar...
Why do Objective-C files use the .m extension?
Since I started learning Objective-C and Cocoa, I've been wondering why they have chosen the extension .m for the implementation files - was it supposed to mean something, or was it just a random letter?
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Python OpenCV2 (cv2) wrapper to get image size?
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cv2 uses numpy for manipulating images, so the proper and best way to get the size of an image is using numpy.shape. Assuming you are working with BGR images, here is an example:
>>> import numpy as np
>>> import cv2
>>> img = cv2.imread('foo.jpg')
&g...
How to check the version of GitLab?
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I have updated my server to GitLab 6.6.4 and finally found the way to get version of GitLab remotely without SSH access to server.
You should be logged in to access the following page:
https://your.domain.name/help
It shows something similar to:
GitLab 6.6.4 42e34a...