e/Exact cover

Information
has gloss	eng: In mathematics, given a collection \mathcalS} of subsets of a set X, an exact cover is a subcollection \mathcalS}^* of \mathcalS} such that each element in X is contained in exactly one subset in \mathcalS}^. One says that each element in X is covered by exactly one subset in \mathcalS}^. An exact cover is a kind of cover.
lexicalization	eng: exact cover
instance of	e/NP-complete

Meaning
German
has gloss	deu: Das Problem der exakten Überdeckung (englisch Exact Cover) ist ein Entscheidungsproblem der Kombinatorik.
lexicalization	deu: Problem der exakten Überdeckung
French
has gloss	fra: Le problème de la couverture exacte est un problème d'optimisation combinatoire NP-complet qui fait partie des 21 problèmes NP-complets de Karp.
lexicalization	fra: Probleme de la couverture exacte
lexicalization	fra: problème de la couverture exacte

Media
media:img	Exact cover.png
media:img	Exact-cover-bigraph-highlighted.svg
media:img	Pentomino Puzzle Solution 8x8 Minus Center.svg