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Algorithm to calculate the number of divisors of a given number
... of O(N / log(log(N))) at best. Brute-force checking all possible divisors from 1 ... Sqrt(n) has a runtime complexity of O(Sqrt(N)) which is far superior. How come this answer has been accepted?
– le_m
Mar 13 '17 at 15:57
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What does “Content-type: application/json; charset=utf-8” really mean?
... charset=utf-8 in the message header. Without this header, I get an error from the service. I can also successfully use Content-type: application/json without the ;charset=utf-8 portion.
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HTML5 Canvas Resize (Downscale) Image High Quality?
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Ok, so i watched the code : you were very near from solution. Two mistakes : your indexes were off by one for tX+1 (they were +3,+4,+5,+6 instead of +4, +5, +6, +7), and changing line in rgba is a mul by 4, not 3. I just tested 4 random values to check (0.1, 0.15, 0.33, 0...
Serialize an object to XML
...lize(writer, this);
writer.Flush();
}
}
To create the object from the saved file, add the following function and replace [ObjectType] with the object type to be created.
/// <summary>
/// Load an object from an xml file
/// </summary>
/// <param name="FileName">Xml f...
How do I make a textbox that only accepts numbers?
...mp; !char.IsControl(e.KeyChar);
}
NOTE: This DOES NOT prevent a user from Copy / Paste into this textbox. It's not a fail safe way to sanitize your data.
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Copy the entire contents of a directory in C#
I want to copy the entire contents of a directory from one location to another in C#.
22 Answers
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Source unreachable when using the NuGet Package Manager Console
We are moving our package management from manually updating files to NuGet. I am trying to install older versions of packages to match the one we already have in source control. There is no way to do this from the UI so I use the command line to get the proper version.
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Can dplyr package be used for conditional mutating?
...mark might not be quite fair - in addition to not receiving the same input from the 2nd iteration forward (which might affect timing since DT$g is already allocated?), the result also propagates back to ans1 and therefore might (if R's optimizer deems it necessary? Not sure on this...) avoid another...
What's the cleanest way of applying map() to a dictionary in Swift?
...Values:) and init(_:uniquingKeysWith:) initializers to create a Dictionary from an arbitrary sequence of tuples. That means that, if you want to change both the keys and values, you can say something like:
let newDict = Dictionary(uniqueKeysWithValues:
oldDict.map { key, value in (key.uppercase...
Why is it said that “HTTP is a stateless protocol”?
...e" (see dimo414's answer below listing options for state within HTTP cited from Wikipedia), and if we view each protocol strictly by itself and not based upon the layers below it, then yes, I can agree that HTTP is "stateless".
– Andrew
Dec 24 '19 at 2:05
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