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MySQL “NOT IN” query
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Thanks for the comment @Basti! Spent a lot of time trying to understand why the query wasn't working as expected.
– gvas
Mar 23 '16 at 2:17
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Why is the time complexity of both DFS and BFS O( V + E )
The basic algorithm for BFS:
8 Answers
8
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Sum a list of numbers in Python
...f numbers such as [1,2,3,4,5...] , and I want to calculate (1+2)/2 and for the second, (2+3)/2 and the third,
(3+4)/2 , and so on. How can I do that?
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Spring @PropertySource using YAML
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Spring-boot has a helper for this, just add
@ContextConfiguration(initializers = ConfigFileApplicationContextInitializer.class)
at the top of your test classes or an abstract test superclass.
Edit: I wrote this answer five years ago. It doesn't wo...
JavaScript: replace last occurrence of text in a string
... @Ruth no prob! @TJ yes, indeed that's true: Ruth if you end up with "words" you're looking for that include the special characters used for regular expressions, you'd need to "escape" those, which as TJ says is a little tricky (not impossible though).
– Pointy
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Get a specific bit from byte
...m a byte array which came in via UDP sent from another device. This byte stores the on/off state of 8 relays in the device.
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IOS7 : UIScrollView offset in UINavigationController
I'm currently migrating my app on ios 7 and I've been stuck for hours on the new navigationcontroller/bar management.
8 Ans...
Find out how much memory is being used by an object in Python [duplicate]
How would you go about finding out how much memory is being used by an object? I know it is possible to find out how much is used by a block of code, but not by an instantiated object (anytime during its life), which is what I want.
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What's the simplest way to test whether a number is a power of 2 in C++?
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(n & (n - 1)) == 0 is best. However, note that it will incorrectly return true for n=0, so if that is possible, you will want to check for it explicitly.
http://www.graphics.stanford.edu/~seander/bithacks.html has a large collection of clever bit-twiddling algorithms, including thi...
“Unable to find remote helper for 'https'” during git clone
I am unable to clone HTTPS repositories. I can clone SSH repos fine, but not HTTPS repos. I cannot test the GIT protocol since I am behind a corporate firewall.
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