An optimisation problem requires minimising some function $f(x)$, where $x$ is a vector of integers. What is the corresponding decision version of the problem?

  • $\begingroup$ what are the steps of creating decision versions? $\endgroup$ – Princeps Tairu Aug 22 '12 at 15:25

"Given $f(x)$, what is $\min(f(x))$?" becomes "Given $f(x)$, and $k$, decide if there is an $x$ such that $f(x)< k$?"

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  • $\begingroup$ I see from the edit @blk that a decision must be a yes or no answer question? $\endgroup$ – Princeps Tairu Aug 22 '12 at 15:32
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    $\begingroup$ Indeed. Your question is very basic. Please consult some introductory books on computability or complexity theory. $\endgroup$ – blk Aug 22 '12 at 15:42

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