EntityQ1400910· pop 6· linked from 24 articlesFeedback arc setSign in to savea subset of the edges in a directed graph that includes at least one edge from each cycleConnectionstime complexityEntitystrongly connected componentEntityNP-completeEntityapproximation algorithmEntitytournamentEntityAPXEntityparameterized complexityEntitystatisticsEntityoperating systemEntityInternational Standard Book NumberEntityWayback MachineEntitydigital object identifierEntityethologyEntitychemical engineeringEntitygraph theoryEntityQ180686EntitygraphEntityJSTOREntitypermutationEntitybibcodeEntityCategoriesComputational problems in graph theoryDirected graphsGraph theory objectsNP-complete problems