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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
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Thanks to Soren for this, even we know the APIs and some idea on it but you did really good Soren, thanks again.
– ind79ra
Jan 19 '16 at 10:17
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design a stack such that getMinimum( ) should be O(1)
...raints mentioned (constant time operations) and constant extra space.
The idea is to store the difference between min value and the input number, and update the min value if it is no longer the minimum.
The code is as follows:
public class MinStack {
long min;
Stack<Long> stack;
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
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I've no idea why the other two answers are so popular!
I believe you were right in assuming the ORM framework should handle it - after all, that is what it promises to deliver. Otherwise your domain model gets corrupted by persiste...
When to add what indexes in a table in Rails
...use them for every foreign key. Is there a situation where it's not a good idea to index it?
– Trip
Oct 23 '14 at 18:30
1
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Setting PayPal return URL and making it auto return?
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I think that the idea of setting the Auto Return values as described above by Kevin is a bit strange!
Say, for example, that you have a number of websites that use the same PayPal account to handle your payments, or say that you have a numbe...
Wrap a delegate in an IEqualityComparer
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Very interesting, thanks for the info. I had no idea GetHashCode had these LINQ implications until seeing these answers. Great to know for future use.
– Justin Morgan
May 10 '12 at 14:51
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App.Config Transformation for projects which are not Web Projects in Visual Studio?
...things there's
multiple ways in XSLT to do this, but you get the general idea. XSLT
is a generalized tree transformation language, while this deployment
one is optimized for a specific subset of common scenarios. But, the
cool part is that each XDT transform is a .NET plugin, so you can make...
What's the difference between design patterns and architectural patterns?
...particles of applications.
For more information:
https://www.oreilly.com/ideas/contrasting-architecture-patterns-with-design-patterns
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How does BLAS get such extreme performance?
...r Justicle's suggestion, didn't see much improvement, I like the blockwise idea. Out of curiosity, without knowing the CPU's cache size how would one right optimal code?
– DeusAduro
Aug 21 '09 at 6:25
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Make git automatically remove trailing whitespace before committing
...itespace=fix HEAD~ && \
git reset --soft HEAD~ ; \
fi"
The idea is to run git fixws before git commit if you have
whitespace errors in the index.
Fix the index and the tree
The following fixws-global-tree-and-index Git alias fixes all whitespace
errors in the index and the tree, if...