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Unique (non-repeating) random numbers in O(1)?

...od to achieve this. I've experimented with some basic Python code which is based on the AES-FFX idea, although not fully conformant--see Python code here. It can e.g. encrypt a counter to a random-looking 7-digit decimal number, or a 16-bit number. Here is an example of radix 10, width 3 (to give a ...
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HTML 5 tag vs Flash video. What are the pros and cons?

...our argument was heard some time ago when people started moving from table based layout to divs and css. – hannson Jul 7 '09 at 2:54 2 ...
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What are good grep tools for Windows? [closed]

... Based on recommendations in the comments, I've started using grepWin and it's fantastic and free. (I'm still a fan of PowerGREP, but I don't use it anymore.) I know you already mentioned it, but PowerGREP is awesome. Some of...
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How to wait for a keypress in R?

... @milia, that is correct. Code based on tcltk needs to run on the local machine and will not run on RStudio-Server. – Greg Snow Jun 20 '16 at 17:35 ...
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Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved
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Input size vs width

...n tell, no CSS attribute does this. Setting a width in em, for example, is based off the height, not the width, and thus is not very precise if you want to display a known number of characters. Of course, this logic doesn't always apply - a name entry field, for example, could contain any number of...
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How to find gaps in sequential numbering in mysql?

We have a database with a table whose values were imported from another system. There is an auto-increment column, and there are no duplicate values, but there are missing values. For example, running this query: ...
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How can I add reflection to a C++ application?

...ations. You would need to tell the framework all methods, the class-names, base-classes and everything it needs. C++ is made with speed in mind. If you want high-level inspection, like C# or Java has, then I'm afraid i have to tell you there is no way without some effort. ...
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Why does string::compare return an int?

...once. But sure, someone dealing with a string containing a MPEG encoded as Base64 or some such may well run into that problem... – Mats Petersson Mar 11 '13 at 21:36 ...
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How are feature_importances in RandomForestClassifier determined?

...at they sum to one. You can circumvent this by looping over the individual base estimators and calling tree_.compute_feature_importances(normalize=False). – Gilles Louppe Jul 31 '14 at 7:13 ...