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How to find common elements from multiple vectors?

... but intersect(intersect(a,b),c) will do the job. EDIT: More cleverly, and more conveniently if you have a lot of arguments: Reduce(intersect, list(a,b,c)) share | improve this answer ...
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Why am I getting “undefined reference to sqrt” error even though I include math.h header? [duplicate

I'm very new to C and I have this code: 5 Answers 5 ...
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What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version

... 12345AB). This is shown in the About window for Mac OS X apps for example and is often more a "Build Number" than a "Version Number". Bundle Version String (CFBundleShortVersionString) This value is used as the "real" version number. This must be the same string as used for the version in iTunes Co...
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How to import CSV file data into a PostgreSQL table?

How can I write a stored procedure that imports data from a CSV file and populates the table? 18 Answers ...
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Python Requests throwing SSLError

... If you have a self-signed certificate, then download it and set verify to its filename. There is no excuse whatsoever for setting verify=False. verify='/path/to/cert.pem' – Matthias Urlichs Oct 9 '13 at 6:30 ...
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How to create Android Facebook Key Hash?

I do not understand this process at all. I have been able to navigate to the folder containing the keytool in the Java SDK. Although I keep getting the error openssl not recognised as an internal or external command. The problem is even if I can get this to work, what would I do and with what afterw...
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Where is Python's sys.path initialized from?

... The site module loads and parses the contents of any .pth files in your site-packages directory. These .pth files contain additions to your PYTHONPATH – ASk May 22 '09 at 21:03 ...
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Programmatically retrieve memory usage on iPhone

... not interested in those, only to know if it's possible to write some code and get the amount of bytes being used and report it via NSLog. ...
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Difference between API and ABI

I am new to linux system programming and I came across API and ABI while reading Linux System Programming . 9 Answers ...
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Making macOS Installer Packages which are Developer ID ready

... Our example project has two build targets: HelloWorld.app and Helper.app. We make a component package for each and combine them into a product archive. A component package contains payload to be installed by the OS X Installer. Although a component package can be installed on ...