computational complexity, strong NP-completeness is a property of computational problems that is a special case of NP-completeness. A general computational...
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problems in NP in polynomial time. The concept of NP-completeness was introduced in 1971 (see Cook–Levin theorem), though the term NP-complete was introduced...
30 KB (3,618 words) - 08:25, 21 May 2025
In computational complexity, an NP-complete (or NP-hard) problem is weakly NP-complete (or weakly NP-hard) if there is an algorithm for the problem whose...
2 KB (429 words) - 23:56, 28 May 2022
Pseudo-polynomial transformation (category Strongly NP-complete problems)
allows to derive strong NP-completeness from existence of a transformation: If Π 1 {\displaystyle \Pi _{1}} is a strongly NP-complete decision problem...
6 KB (1,044 words) - 17:57, 13 July 2021
3-partition problem (category Strongly NP-complete problems)
The 3-partition problem is a strongly NP-complete problem in computer science. The problem is to decide whether a given multiset of integers can be partitioned...
15 KB (2,261 words) - 12:19, 6 August 2025
To attack the P = NP question, the concept of NP-completeness is very useful. NP-complete problems are problems that any other NP problem is reducible...
63 KB (7,797 words) - 07:17, 31 July 2025
Pseudo-polynomial time (section Strong and weak NP-hardness vs. strong and weak polynomial-time algorithms)
NP-complete problem with known pseudo-polynomial time algorithms is called weakly NP-complete. An NP-complete problem is called strongly NP-complete if...
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29, ISBN 9780199233212. Garey, M. R.; Johnson, D. S. (1978), "'Strong' NP-completeness results: Motivation, examples, and implications", Journal of the...
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Bin packing problem (category Strongly NP-complete problems)
{\displaystyle j} . The bin packing problem is strongly NP-complete. This can be proven by reducing the strongly NP-complete 3-partition problem to bin packing....
53 KB (7,098 words) - 23:25, 26 July 2025
Numerical 3-dimensional matching (category Strongly NP-complete problems)
a reduction from 3-dimensional matching via 4-partition. To prove NP-completeness of the numerical 3-dimensional matching, the proof should be similar...
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Gödel's completeness theorem establishes semantic completeness for first-order logic. A formal system S is strongly complete or complete in the strong sense...
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Knapsack problem (category NP-complete problems)
004. ISSN 1572-5286. S2CID 8820628. Wojtczak, Dominik (2018). "On Strong NP-Completeness of Rational Problems". Computer Science – Theory and Applications...
49 KB (7,744 words) - 16:05, 3 August 2025
Independent set (graph theory) (category NP-complete problems)
Royle (2001), p. 3. Garey, M. R.; Johnson, D. S. (1978-07-01). ""Strong" NP-Completeness Results: Motivation, Examples, and Implications". Journal of the...
30 KB (3,564 words) - 07:50, 15 July 2025
Clique problem (category NP-complete problems)
JSTOR 2289017, MR 0860518. Garey, M. R.; Johnson, D. S. (1978), ""Strong" NP-completeness results: motivation, examples and implications", Journal of the...
84 KB (9,905 words) - 16:01, 10 July 2025
Longest path problem (category NP-complete problems)
cannot be solved in polynomial time for arbitrary graphs unless P = NP. Stronger hardness results are also known showing that it is difficult to approximate...
22 KB (2,662 words) - 06:47, 12 May 2025
Integer programming (category NP-complete problems)
(other than the integer constraints) are linear. Integer programming is NP-complete. In particular, the special case of 0–1 integer linear programming, in...
30 KB (4,226 words) - 01:54, 24 June 2025
Not-all-equal 3-satisfiability (category NP-complete problems)
3-satisfiability (NAE3SAT) is an NP-complete variant of the Boolean satisfiability problem, often used in proofs of NP-completeness. Like 3-satisfiability, an...
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Retrieved October 3, 2011. Manyem, Prabhu (2010). "Duality Gap, Computational Complexity and NP Completeness: A Survey". arXiv:1012.5568 [math.OC]....
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Strip packing problem (category Strongly NP-complete problems)
minimize the wasted material. This problem was first studied in 1980. It is strongly-NP hard and there exists no polynomial-time approximation algorithm with...
48 KB (7,808 words) - 00:28, 17 December 2024
cases. Usually for P-completeness, NC-reduction is meant by default, though many results in the literature concerning P-completeness still holds even under...
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Thus, in a sense, there is a different completeness theorem for each deductive system. A converse to completeness is soundness, the fact that only logically...
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"Section 7.4: Polynomial Space Completeness", Computers and Intractability: A Guide to the Theory of NP-Completeness, W.H. Freeman, pp. 170–177, ISBN 0-7167-1045-5...
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experts in the field disagree about proposed solutions. P versus NP problem – The P vs NP problem is a major unsolved question in computer science that asks...
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Multi-commodity flow problem (category NP-complete problems)
satisfying all demands is NP-complete, even for only two commodities and unit capacities (making the problem strongly NP-complete in this case). If fractional...
7 KB (1,172 words) - 22:53, 19 November 2024
Planar SAT (category NP-complete problems)
of the formula. This problem is NP-complete. Reduction from Planar SAT is a commonly used method in NP-completeness proofs of logic puzzles. Examples...
16 KB (2,166 words) - 23:33, 3 June 2025
brute-force attacks. The term was coined by Fanya Montalvo by analogy with NP-complete and NP-hard in complexity theory, which formally describes the most famous...
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Dominating set (category NP-complete problems)
S. (1979). Computers and Intractability: A Guide to the Theory of NP-Completeness. Series of Books in the Mathematical Sciences (1st ed.). New York:...
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APX (redirect from APX-complete)
{\displaystyle f(n)} -APX-complete classes; some such classes contain well-known optimization problems. Log-APX-completeness and poly-APX-completeness are defined in...
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Feedback arc set (category NP-complete problems)
algorithms. It was one of Richard M. Karp's original set of 21 NP-complete problems; its NP-completeness was proved by Karp and Eugene Lawler by showing that inputs...
54 KB (6,116 words) - 02:17, 25 June 2025
Graph isomorphism problem (redirect from GI-complete)
position of the problem in the class NP as well as in other complexity classes.) Johnson, David S. (2005), "The NP-Completeness Column", ACM Transactions on Algorithms...
41 KB (4,233 words) - 01:47, 25 June 2025