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Best algorithm for detecting cycles in a directed graph [closed]
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has the pseudo-code for one algorithm, and a brief description of another from Tarjan. Both have O(|V| + |E|) time complexity.
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Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
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I had the same problem with slowness in IntelliJ 13 after upgrading from 12.
What worked for me was editing the idea64.vmoptions in the bin folder and setting the max heap to 8 GB (was 512 MB) and the Max PermGen to at least 1GB (was 300MB).Example below:
-Xms128m
-Xmx8192m
-XX:MaxPermSize=1...
Logging Clientside JavaScript Errors on Server [closed]
...t part of any specification, support is somewhat flaky.
Here's an example from Using XMLHttpRequest to log JavaScript errors:
window.onerror = function(msg, url, line)
{
var req = new XMLHttpRequest();
var params = "msg=" + encodeURIComponent(msg) + '&url=' + encodeURIComponent(url) + ...
How can I make a time delay in Python? [duplicate]
... the time module. It can take a float argument for sub-second resolution.
from time import sleep
sleep(0.1) # Time in seconds
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Cleanest way to get last item from Python iterator
What's the best way of getting the last item from an iterator in Python 2.6? For example, say
14 Answers
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Android Reading from an Input stream efficiently
...%28java.io.InputStream%29
The Apache Commons IO library can be downloaded from here:
http://commons.apache.org/io/download_io.cgi
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How to calculate time elapsed in bash script?
...tf '%(%H:%M:%S)T\n' "$elapsedseconds"
06:12:24
For the lovers of detail, from bash-hackers.org:
%(FORMAT)T outputs the date-time string resulting from using FORMAT
as a format string for strftime(3). The associated argument is the
number of seconds since Epoch, or -1 (current time) or -2 (...
Concurrent vs serial queues in GCD
...le: you have a block that takes a minute to execute. You add it to a queue from the main thread. Let's look at the four cases.
async - concurrent: the code runs on a background thread. Control returns immediately to the main thread (and UI). The block can't assume that it's the only block running ...
How can I determine whether a 2D Point is within a Polygon?
...ay casting. The idea of the algorithm is pretty simple: Draw a virtual ray from anywhere outside the polygon to your point and count how often it hits a side of the polygon. If the number of hits is even, it's outside of the polygon, if it's odd, it's inside.
The winding number algorithm would be...
Standard way to embed version into python package?
...laced after the module docstring but before any import
statements except from __future__ imports.
You should also make sure that the version number conforms to the format described in PEP 440 (PEP 386 a previous version of this standard).
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