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How to create the most compact mapping n → isprime(n) up to a limit N?
...are lists of the first N primes on the internet with N stretching up to at least fifty million. Download the files and use them, it's likely to be much faster than any other method you'll come up with.
If you want an actual algorithm for making your own primes, Wikipedia has all sorts of good stuff...
Downloading Java JDK on Linux via wget is shown license page instead
...r would disconnect, leaving me with a truncated download. The CLI tool at least retries from where it left off, and eventually one of the runs will complete without time-out / rejection.
– Roboprog
Oct 6 '15 at 22:42
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Why does this Java code compile?
...s all four conditions is illegal, but a forward reference that fails on at least one condition is OK.
int a = a = 1; compiles because it violates (b): the reference a is being assigned to, so it's legal to refer to a in advance of a's complete declaration.
int b = this.b + 1 also compiles because ...
Is there any async equivalent of Process.Start?
...pport, but it'll gather the standard output and standard error for you, at least. github.com/jamesmanning/RunProcessAsTask
– James Manning
Dec 3 '12 at 5:54
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Why maven? What are the benefits? [closed]
...uired, control the converge across modules, etc. There is no magic. But at least you have support.
And don't forget that dependency management is only a small part of what Maven offers, there is much more (not even mentioning the other tools that integrates nicely with Maven, e.g. Sonar).
Slow ...
Real World Example of the Strategy Pattern
...e many things (most views, most subscribers, creation date, most activity, least amount of comments, etc), and in case management doesn't yet know exactly how to order, and may want to experiment with different orderings at a later date. You make an interface (IOrderAlgorithm or something) with an o...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
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Update: This process is the same for upgrading 9.5 through at least 11.5; simply modify the commands to reflect versions 9.6 and 10, where 9.6 is the old version and 10 is the new version. Be sure to adjust the "old" and "new" directories accordingly, too.
I just upgraded PostgreSQL ...
Is there a performance difference between i++ and ++i in C?
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First, it is far from obvious that ++i is more efficient than i++, at least where integer variables are concerned.
And :
So the question one should be asking is not which of these two operations is faster, it is which of these two operations expresses more accurately what you are trying t...
Why have header files and .cpp files? [closed]
...es "ease" of parsing have to do with it? If Java had a grammar that was at least as complex as C++, it could still just use java files. In either case, what about C? C is easy to parse, yet uses both headers and c files.
– Thomas Eding
Dec 2 '11 at 21:18
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Converting between datetime, Timestamp and datetime64
...2-05-01T01:00:00.000000+0100') returns Timestamp('2012-05-01 00:00:00') at least in pandas 0.17.1.
– Anton Protopopov
Jan 21 '16 at 10:15
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