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Search for executable files using find command
...ameter/flag can I use with the Unix find command so that I search executables?
10 Answers
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OAuth secrets in mobile apps
When using the OAuth protocol, you need a secret string obtained from the service you want to delegate to. If you are doing this in a web app, you can simply store the secret in your data base or on the file system, but what is the best way to handle it in a mobile app (or a desktop app for that mat...
What are the differences between Abstract Factory and Factory design patterns?
I know there are many posts out there about the differences between these two patterns, but there are a few things that I cannot find.
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
I'm working on a balloon project with a Raspberry Pi. When we potentially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
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How do I measure time elapsed in Java? [duplicate]
...ar are quite right.
If you are measuring elapsed time, and you want it to be correct, you must use System.nanoTime(). You cannot use System.currentTimeMillis(), unless you don't mind your result being wrong.
The purpose of nanoTime is to measure elapsed time, and the purpose of currentTimeMillis ...
Set every cell in matrix to 0 if that row or column contains a 0
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Ok, so I'm tired as it's 3AM here, but I have a first try inplace with exactly 2 passes on each number in the matrix, so in O(NxN) and it is linear in the size of the matrix.
I use 1rst column and first row as markers to know where are rows/cols with only 1's...
C# vs C - Big performance difference
I'm finding massive performance differences between similar code in C anc C#.
13 Answers
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Is Fortran easier to optimize than C for heavy calculations?
From time to time I read that Fortran is or can be faster then C for heavy calculations. Is that really true? I must admit that I hardly know Fortran, but the Fortran code I have seen so far did not show that the language has features that C doesn't have.
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Websocket API to replace REST API?
I have an application whose primary function works in real time, through websockets or long polling.
10 Answers
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How to use concerns in Rails 4
...y "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers or models.
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