np-hard

Fetched 2026-10-26 (cache).

Synonyms: np, nip, nap, no, n, ne, up, op, sp, pp, nep

Antonyms: np, nip, nap, no, n, ne, up, op, sp, pp, nep

Related words from Datamuse; suggestions, not definitions.

Adjective

1. {{lb|en|computing theory}} A problem H is NP-hard if and only if there is an [[NP-complete]] problem L that is polynomial time Turing-reducible to H.
2. {{lb|en|computing theory}} An alternative definition restricts NP-hard to decision problems and then uses polynomial-time many-one reduction instead of Turing reduction.

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