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Fast permutation -> number -> permutation mapping algorithms
... In general, the k'th digit will have base b[k] = k + 2. The highest value allowed for digit k is h[k] = b[k] - 1 = k + 1.
Our rule about the weights w[k] of digits requires that the sum of h[i] * w[i], where i goes from i = 0 to i = k, is equal to 1 * w[k+1]. Stated recurrently, w[k+1] = w[k] + h[...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
...ain can become nested, and it quickly becomes unwieldy to wire them up manually. Even with factories, the duplication of your code is just not worth it.
IoC containers can be complex, yes. But for this simple case I've shown it's incredibly easy.
Okay, let's justify this even more. Let's say ...
Sequelize.js delete query?
Is there a way to write a delete/deleteAll query like findAll?
9 Answers
9
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Why am I getting ibtool failed with exit code 255?
All of a sudden I can't build my project. I get the following compiler error:
33 Answers
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ASP.NET MVC Performance
...ing potential perf targets. As we move towards Beta and RTM, we will internally be doing more perf testing. However, I'm not sure what our policy is on publishing results of perf tests.
In any case, any such tests really need to consider real world applications...
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Best way to store time (hh:mm) in a database
...e, but what's the best way to do this without storing more info than I actually need?
15 Answers
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How do I configure Maven for offline development?
...ection to the internet at some point to be able to use it? Meaning specifically getting the internal maven plugins for compiling, cleaning, packaging, etc?
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Are global variables bad? [closed]
...s to these, it becomes increasingly hard to figure out which functions actually read and write these variables.
To understand how the application works, you pretty much have to take into account every function which modifies the global state. That can be done, but as the application grows it will ...
Emacs mode for Stack Overflow's markdown
I am using Org-mode in Emacs to handle all my technical documentation. I would like to use Emacs to prepare questions that I have for Stack Overflow. Is there an Emacs mode for that, or even better, an extension for Org-mode to handle Stack Overflow formatting? Ideally it should include all formatti...
How to remove duplicate white spaces in string using Java?
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Like this:
yourString = yourString.replaceAll("\\s+", " ");
For example
System.out.println("lorem ipsum dolor \n sit.".replaceAll("\\s+", " "));
outputs
lorem ipsum dolor sit.
What does that \s+ mean?
\s+ is a regular expression. \s matches a space, tab...