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This down side of this solution is that it gives you the answer multiple times (for each combination of column_1, column_2, column_3, column_4). This may or may not be a significant side-effect, depending on how you process the results.
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Visual studio compiles fine but still shows red lines
I am using VS 2012 and it was working all fine until I started observing some funny behavior. When I open my code it shows red Underlines which we usually see when there is an error in our code. Surprisingly, code compiles all fine. I have made following observations that are not normal at all.
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What does int argc, char *argv[] mean?
In many C++ IDE's and compilers, when it generates the main function for you, it looks like this:
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Are static class variables possible in Python?
Is it possible to have static class variables or methods in Python? What syntax is required to do this?
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...o get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated in the original problem.
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How can I represent an 'Enum' in Python?
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Enums have been added to Python 3.4 as described in PEP 435. It has also been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4 on pypi.
For more advanced Enum techniques try the aenum library (2.7, 3.3+, same author as enum34. Code is not perfectly compatible between py2 and py3,...
Detect when browser receives file download
...have a page that allows the user to download a dynamically-generated file. It takes a long time to generate, so I'd like to show a "waiting" indicator. The problem is, I can't figure out how to detect when the browser has received the file, so I can hide the indicator.
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How can I remove a specific item from an array?
... an array of numbers and I'm using the .push() method to add elements to it.
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How to elegantly check if a number is within a range?
How can I do this elegantly with C# and .NET 3.5/4?
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Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
...Object allocation spikes and I assign the data accordingly. When I finish with the data, I free it up accordingly - however instruments doesn't show any data to have been freed!
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