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Algorithm to return all combinations of k elements from n
...rs covering the topic:
An Efficient Implementation of the Eades, Hickey, Read Adjacent Interchange Combination Generation Algorithm (PDF, with code in Pascal)
Combination Generators
Survey of Combinatorial Gray Codes (PostScript)
An Algorithm for Gray Codes
Chase's Twiddle (algorithm)
Phillip J...
When should I use git pull --rebase?
...orks on it
Alice does git checkout master && git pull. Master is already up to date.
Bob does git checkout master && git pull. Master is already up to date.
Alice does git merge topic-branch-A
Bob does git merge topic-branch-B
Bob does git push origin master before Alice
Alice does g...
Java 8 Streams - collect vs reduce
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@Jimhooker2002 reread it. If you are, say, calculating the product then the reduction function can simply be applied to the split streams in parallel and then combined together at the end. The process of reducing always results in the the typ...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...s being boasted about for normal boxes are around 80K for example single threaded Jabber messaging servers.
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Adding a regression line on a ggplot
... your original dataframe (in your case data).
It would look like this:
# read dataset
df = mtcars
# create multiple linear model
lm_fit <- lm(mpg ~ cyl + hp, data=df)
summary(lm_fit)
# save predictions of the model in the new data frame
# together with variable you want to plot against
predi...
How to unit test a Node.js module that requires other modules and how to mock the global require fun
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I suggest you read up on sinon.js. If you're using sinon (as in the example above) you would either innerLib.toCrazyCrap.restore() and restub, or call sinon via sinon.stub(innerLib, 'toCrazyCrap') which allows you to change how the stub b...
NTFS performance and large volumes of files and directories
...ntig.exe on a regular basis to keep your big folder's index defragmented.
Read below only if you're bored.
The actual limit isn't on the # of fragment, but on the number of records of the data segment that stores the pointers to the fragment.
So what you have is a data segment that stores pointer...
How does the “final” keyword in Java work? (I can still modify an object.)
...be overridden. (This method is in superclass)
final methods can override. (Read this in grammatical way. This method is in a subclass)
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Adding a new array element to a JSON object
I have a JSON format object I read from a JSON file that I have in a variable called teamJSON, that looks like this:
6 Answ...
How can I save my secret keys and password securely in my version control system?
...box or whoever is storing your files under VC does not have the ability to read the information in plaintext.
Tutorial on Transparent Encryption/Decryption during Push/Pull
This gist https://gist.github.com/873637 shows a tutorial on how to use the Git's smudge/clean filter driver with openssl to ...