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How to automatically generate N “distinct” colors?
...lable by next month)
An Algorithm for the Selection of High-Contrast Color Sets (the authors offer a free C++ implementation)
High-contrast sets of colors (The first algorithm for the problem)
The last 2 will be free via most university libraries / proxies.
N is finite and relatively small
In t...
How to add an extra column to a NumPy array
...ightforward than the answer by @JoshAdel, but when dealing with large data sets, it is slower. I'd pick between the two depending on the importance of readability.
– dvj
Aug 22 '15 at 22:08
...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...data;
// oh crap, now we read the end and *only* now the eof bit will be set (as well as the fail bit)
// do stuff with (now uninitialized) data
}
Against this:
int data;
while(inStream >> data){
// when we land here, we can be sure that the read was successful.
// if it wasn't, the...
Big-O summary for Java Collections Framework implementations? [closed]
...) O(1)
CopyOnWrite-ArrayList O(1) O(n) O(n) O(1) O(n) O(n)
Set implementations:
add contains next notes
HashSet O(1) O(1) O(h/n) h is the table capacity
LinkedHashSet O(1) O(1) O(1)
CopyOnWriteArraySet O(n) ...
How can I use PHP to dynamically publish an ical file to be read by Google Calendar?
...:19970715T035959Z
SUMMARY:Bastille Day Party
END:VEVENT
END:VCALENDAR";
//set correct content-type-header
header('Content-type: text/calendar; charset=utf-8');
header('Content-Disposition: inline; filename=calendar.ics');
echo $ical;
exit;
That's essentially all you need to make a client think th...
How to get the first line of a file in a bash script?
...onents in a pipe will run in separate subshells. Meaning that $VAR will be set in subshell (that cease to exist as soon as the pipeline has finished executing) rather than in the invoking shell. You can get around this with read VAR <<EOF\n$(cat ...)\nEOF (where each \n is a newline).
...
How to sort a file, based on its numerical values for a field?
...turns just the same results for this example
Edit:
Looks like the locale settings affect how the minus sign affects the order (see here). In order to get proper results I just did:
LC_ALL=C sort -n filename.txt
share
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How do I revert my changes to a git submodule?
...nto the submodule's directory, then do a git reset --hard to reset all modified files to their last committed state. Be aware that this will discard all non-committed changes.
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improve this a...
What are the complexity guarantees of the standard containers?
... elements from begin to end. O(n)
Accessors
v[i] Return (or set) the I'th element. O(1)
v.at(i) Return (or set) the I'th element, with bounds checking. O(1)
v.size() Return current number of elements. O(1)
v.empty() Return t...
How do I limit the number of results returned from grep?
...
You can set in "code formatting" by clicking the icon like "{}" in the editor.
– peterh - Reinstate Monica
Mar 11 '15 at 19:45
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