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How should I ethically approach user password storage for later plaintext retrieval?

...sing a dictionary of 7776 words (as Diceware uses) which could be randomly selected for a six word passphrase, the passphrase would have an entropy of 77.4 bits. See the Diceware FAQ for more info. a passphrase with about 77 bits of entropy: "admit prose flare table acute flair" a password with ab...
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Why should I use a pointer rather than the object itself?

...m (especially when using IDEs or text editors that show the signature of a selected functions). Also, const&. – JAB Mar 3 '14 at 16:04  |  ...
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How to get first N elements of a list in C#?

... Except that you're now ordering only the first 5 elements after you've selected them. It may be faster, but it also has different semantics, which are less likely to be what people actually want to achieve. – Greg Beech Nov 26 '08 at 9:01 ...
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A simple explanation of Naive Bayes Classification

...d be Democrats or Republicans. They are also either male or female. If we select one senator completely randomly, what is the probability that this person is a female Democrat? Conditional Probability can help us answer that. Probability of (Democrat and Female Senator)= Prob(Senator is Democrat) ...
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Check whether a path is valid in Python without creating a file at the path's target

...rno.ERANGE. (This appears to be an OS-level bug, otherwise referred to as "selective interpretation" of the POSIX standard.) Under all other OSes, errno.ENAMETOOLONG. Crucially, this implies that only pathnames residing in existing directories are validatable. The os.stat() and os.lstat() functi...
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Alternatives to gprof [closed]

...lways found profilers not so useful for fixing slow code, and instead used selective bits of debugging code to measure the time taken by a group of statements of my choosing, often aided by some trivial little macros or whatever. It's never taken me too long to find the culprit, but I've always bee...
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Parse string to DateTime in C#

...w[] { "dd-MM-yyyy", "dd.MM.yyyy" }; (new[] { "15-01-2019", "15.01.2019" }).Select(s => s.ToDate(patterns)).Dump(); which will convert the dates in the array on the fly by using the patterns and dump them to the console. Some background about TryParseExact Finally, Here are some comments ab...
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SVG: text inside rect

... Programmatically using D3: body = d3.select('body') svg = body.append('svg').attr('height', 600).attr('width', 200) rect = svg.append('rect').transition().duration(500).attr('width', 150) .attr('height', 100) .attr('x', 40) ...
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How to see which flags -march=native will activate?

I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using? ...
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Should I use px or rem value units in my CSS? [closed]

...u have to press Alt, and go to View, Text Size.) It's much easier to just select the Zoom option in the browser's main menu (or use Ctrl++/-/mouse wheel). 1 - within statistical error, naturally If we assume most users scale pages using the zoom option, I find relative units mostly irrelevant. I...