Definition: A problem for which no algorithm can exist which computes all instances of it in polynomial time.
See also tractable, undecidable problem, unsolvable problem.
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Entry modified 17 December 2004.
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Cite this as:
Paul E. Black, "intractable", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/intractable.html