A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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a famous special case of the boolean satisfiability problem (SAT).
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Questions about the science and art of determining properties of algorithms, often including correctness, runtime and space usage. Use the [runtime-analysis] tag for questions about the runtime of al…
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Questions related to general, high level, techniques for the design of algorithms.
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a sequence of well-defined steps that defines an abstract solution to a problem. Use this tag when your issue is related to design and analysis of algorithms.
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A method in analysis of algorithms that considers the overall cost of a sequence of operations.
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a form of declarative programming oriented towards NP-hard search problems
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Theoretical results and techniques applied in practical settings.
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Questions about algorithms that solve problems up to some bounded error.
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A sequential random-access data structure whose size can typically not be changed after creation.
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Questions about design and properties of agents that act in a dynamic environment and make decisions towards some goal without user control.
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For questions about the [assignment problem](https://en.wikipedia.org/wiki/Assignment_problem) in combinatorial optimization, **not** for problems that you've been set as a homework assignment.
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Questions about asymptotic notations and analysis
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Questions about mathematical devices that read an input stream symbol by symbol and use a state transition map to produce an output stream, maybe using secondary storage.
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Machine-checked, machine-generated or machine-verified proofs