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Fast permutation -> number -> permutation mapping algorithms
...you have n possibilities, so you can describe this with a number between 0 and n-1. For the position that the next element ends up at, you have n-1 remaining possibilities, so you can describe this with a number between 0 and n-2.
Et cetera until you have n numbers.
As an example for n = 5, consid...
What does an exclamation mark mean in the Swift language?
...ome/None), not the value itself (T). So john isn't an instance of Person, and it doesn't have an apartment member:
john.apartment
// 'Person?' does not have a member named 'apartment'
The actual Person value can be unwrapped in various ways:
"forced unwrapping": john! (gives the Person value i...
Rolling median algorithm in C
...ial window of values, then perform a binary search to insert the new value and remove the existing one at each iteration.
1...
What is the X-REQUEST-ID http header?
... this subject, read various articles about this header, its use in Heroku, and projects based on Django.
4 Answers
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Send POST data using XMLHttpRequest
...ossible to pass data "like jQuery". I mentioned how I think jQuery does it and thus, how you could achieve this.
– Dan Pantry
Apr 16 '15 at 14:33
...
How do I delete specific lines in Notepad++?
I'm cleaning up some code files (C#) and want to remove the regions. And I would like to delete all the lines that have the string '#region'. That's just an example, and I can think of several more uses, but is that even possible?
...
List all tables in postgresql information_schema
...asterisk).(asterisk) thing, sorry. I just ran the select query in postgres and it listed information about all the tables in it. Try running the select statement (on your blank db) and see what it returns.
– RodeoClown
Feb 16 '10 at 22:15
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jQuery: serialize() form and other parameters
...t possible to send form elements (serialized with .serialize() method) and other parameters with a single AJAX request?
...
How to read and write INI file with Python3?
I need to read, write and create an INI file with Python3.
6 Answers
6
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Remove secure warnings (_CRT_SECURE_NO_WARNINGS) from projects by default in Visual Studio
...ts in solution explorer.
Press Alt-F7 or right click in solution explorer and select "Properties"
Configurations:All Configurations
Click on the
Preprocessor Definitions line to invoke its editor
Choose
Edit...
Copy "_CRT_SECURE_NO_WARNINGS" into the Preprocessor Definitions white box on the ...