This article show that there开发者_StackOverflow is some regexp that is O(2^n) when backtracking. The example is (x+x+)+y.
I\'ve encountered an interesting problem while programming a random level generator for a tile-based game. I\'ve implemented a brute-force solver for it but it is exponentially slow and definitely unf
I\'m principally interested in case studies on code metrics, relating code readability to defect reduction, that justify taking seriously cyclomatic complexity or some similar metric.Wikipedia has thi
This question already has an answer here: Oracle query that will list of the database objects referenced by a view
I ran into the following algorithmic problem while experimenting with classification algorithms. Elements are classified into a polyhierarchy, what I understand to be a poset with a single root. I hav
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This question already has answers here: Closed 12 years ago. Possible Duplicate: Are there any O(1/n) algorithms?
High-level:Can I do this order by, group by based on sum any faster?(PG 8.4, fwiw., on a non-tiny table .... think O(millions of rows) )
As the title suggests, what is 开发者_开发技巧the runtime complexity (eg, big-O) of the Sprite.contains method?According to the documentation, it\'s available in any version of Flash Player 9. Have yo
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