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How do I create a list of random numbers without duplicates?
...ignificantly cheaper. For ranges of size N, if you want to generate on the order of N unique k-sequences or more, I recommend the accepted solution using the builtin methods random.sample(range(N),k) as this has been optimized in python for speed.
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# Return a randomized "range" using a Linear Co...
Is there a concise way to iterate over a stream with indices in Java 8?
...llel stream could break as the items would not necesarily be processed "in order".
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Fastest Way to Find Distance Between Two Lat/Long Points
... @Quassnoi: A couple corrections: You'll probably want to switch the order of the coordinates to lat, long. Also, longitudinal distances are proportional the cosine of the latitude, not longitude. And you'll want to change it from multiplication to division, so your first coordinate would b...
Confused about stdin, stdout and stderr?
...me library functions and interfaces (printf,
scanf, read, write, select, etc.) without worrying about whether the I/O stream
is connected to a keyboard, a disk file, a socket, a pipe, or some other I/O abstraction.
Most programs need to read input, write output, and log errors, so stdin, stdout...
Finding current executable's path without /proc/self/exe
... SunOS, Solaris, SYSV, HPUX, Concentrix, SCO, Darwin, AIX, OS X, Nextstep, etc. And with a little modification probably VMS, VM/CMS, DOS/Windows, ReactOS, OS/2, etc. If a program was launched directly from a GUI environment, it should have set argv[0] to an absolute path.
Understand that almos...
How to return dictionary keys as a list in Python?
... Note that if you use list(newdict.keys()) that the keys are not in the order you placed them due to hashing order!
– Nate M
Jan 30 '19 at 3:28
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Multiple INSERT statements vs. single INSERT with multiple VALUES
...ried a query consisting entirely of duplicate rows and neither affects the order of the output of the table of the constants (and as you are inserting into a heap time spent sorting would be pointless anyway even if it did).
Moreover if a clustered index is added to the table the plan still shows ...
Java LinkedHashMap get first or last entry
I have used LinkedHashMap because it is important the order in which keys entered in the map.
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Various ways to remove local Git changes
...# Discarding all local commits on this branch [Removing local commits]
In order to discard all local commits on this branch, to make the local branch identical to the "upstream" of this branch, simply run
git reset --hard @{u}
Reference: http://sethrobertson.github.io/GitFixUm/fixup.html
or do ...
ORA-00979 not a group by expression
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No, you do not need to put them in your order by clause
– Xaisoft
Oct 5 '09 at 15:10
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