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How to prove that a problem is NP complete?
...ex covers (that is, for some graph G, does it have a vertex cover set of size k such that every edge in G has at least one vertex in the cover set?) is in NP:
our input X is some graph G and some number k (this is from the problem definition)
Take our information C to be "any possible subset of ve...
How to create the branch from specific commit in different branch
...ier
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CMake output/build directory
... the_storyteller
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answered Sep 16 '13 at 12:01
Angew is no longer proud of SOAngew is no longer proud of SO
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Is there any way to put malicious code into a regular expression?
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Use of the MANIFEST.MF file in Java
...ression and require special information to be in the manifest file. Summarized below are brief descriptions of the headers that are required for some special-purpose JAR-file functions
Applications Bundled as JAR Files: If an application is bundled in a JAR file, the Java Virtual Machine needs to b...
Algorithm to calculate the number of divisors of a given number
...lly.
Essentially it boils down to if your number n is:
n = a^x * b^y * c^z
(where a, b, and c are n's prime divisors and x, y, and z are the number of times that divisor is repeated)
then the total count for all of the divisors is:
(x + 1) * (y + 1) * (z + 1).
Edit: BTW, to find a,b,c,etc you'll...
How do I byte-compile everything in my .emacs.d directory?
... Starter Kit , which sort of provides better defaults and some nice customizations to default install of Emacs.
6 Answers
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Numpy index slice without losing dimension information
...n of the array the slice came from. If you did, then things like:
a = np.zeros((100,100,10))
b = np.zeros(100,10)
a[0,:,:] = b
either wouldn't work or would be much more difficult to implement.
(Or at least that's my guess at the numpy dev's reasoning behind dropping dimension info when slici...
Database design for audit logging
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answered Jan 7 '10 at 12:55
Josh AndersonJosh Anderson
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Get last element of Stream/List in a one-liner
... [..]" and "a properly constructed reduce operation is inherently parallelizable, so long as the function(s) used to process the elements are associative and stateless."
The documentation for the closely related Collectors is even more explicit: "To ensure that sequential and parallel executions p...