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Problem set. Graph Theory Problems


IDTitleSourceAuthorsDifficulty

1022Genealogical TreeAutumn School Contest 200010802140

1119MetroAutumn School Contest 2001683871

1080Map ColoringWinter Mathematical Festival Varna 20016709199

1106Two TeamsTetrahedron Team Online Contest May 2001652874

1033LabyrinthUral Championship 19996461233

1837Isenbaev's NumberUral Championship 2011556559

1136ParliamentNEERC 2001 Central Subregional493299

1008Image EncodingUSTU PhysTech Cup 20004204360

1280Topological SortingNEERC 2003 Central Subregional3514142

1272Non-Yekaterinburg SubwayUSU Championship 20033362149

1210Kind SpiritsAutumn School Contest 20023029163

1160NetworkNEERC 2001 Northern Subregional3007164

1450Russian PipelinesTimus Top Coders: Second Challenge2914168

1045Funny GameUSU Local Contest. March 20002849516

1242WerewolfUSU Personal Contest 20032763179

1072RoutingUSU Personal Contest 20012742492

1056Centers of the NetNEERC 2000 Central Subregional2693544

1004Sightseeing TripCentral European Olympiad in Informatics 19992612580

1069Prufer CodeUSU Personal Contest 20012609517

1709Penguin-AviaUral Championship 20092536153

1208Legendary Teams ContestUSU Local Contest. March 20022304212

1085MeetingSpring School Contest 20012145616

1162Currency ExchangeNEERC 2001 Northern Subregional2121230

1205By the Underground or by Foot?USU Local Contest. March 20022068236

1982Electrification PlanUral FU Championship 20131970132

1109ConferenceBulgarian Online Contest September 20011956248

1076Trash1911701

1016Cube on the WalkUSU Local Contest. 19991868805

1096Get the Right Route Plate!USU Local Contest. March 20011792700

1930Ivan's CarUral Regional School Programming Contest 20121729165

1320Graph DecompositionUral Championship 2004. Round 21720291

1227Rally ChampionshipNEERC 2002 Central Subregional1642300

1124MosaicUSU Championship 20011633297

1218Episode N-th: The Jedi TournamentUSU Championship 20021533321

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1505226

1040Airline CompanyUSU Championship 20001494992

1156Two RoundsUral Championship 2001. Round 21489326

1137Bus RoutesNEERC 2001 Central Subregional1476329

1176HyperchannelsUSU Personal Contest 20021436339

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 20011343361

1291Gear-wheelsSpring School Contest 20041296385

1416ConfidentialUSU Championship 20051275396

1077Travelling Tours1221396

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest1198303

1128Partition into GroupsUSU Championship 20011182410

1651Shortest SubchainNEERC 2008 Eastern Subregional1159345

1129Door PaintingUSU Championship 20011128429

1035Cross-stitchUral Championship 199911191331

1329Galactic HistoryAutumn School Contest 20041084463

1198Jobbery1035488

1065FrontierNEERC 20009941388

1099Work Scheduling9931138

1643Attack of the Dark FortressAutumn School Contest 2008951421

1182Team Them Up!NEERC 2001941516

1400Cellular CharactersAutumn School Contest 2005928544

1325DirtUral Championship 2004. Round 2927538

1358CablesSpring School Contest 2005927543

1421Credit OperationsTimus Top Coders: First Challenge913539

1314Chase in SubwayUral Championship 2004. Round 1843591

1934Black SpotUral FU Championship 2012830341

2034CaravansUral Regional School Programming Contest 2014811287

1641DutiesAutumn School Contest 2008807495

1379Cups TransportationUral Championship 2005. Round 1790638

1254Die HardUSU Local Contest. March 2003770638

1500Pass LicensesNEERC 2006 Eastern Subregional734634

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional698444

1250Sea BurialUSU Local Contest. March 2003677724

1301Cube in LabyrinthUral Championship 1998671739

1392Dreaming of Stars663759

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional649568

1277Cops and ThievesNEERC 2003 Central Subregional626788

1323ClassmatesUral Championship 2004. Round 2605819

1339BabiesUSU Championship 2004580861

1434Buses in VasyukiUSU Personal Contest 2006501972

1237Evacuation PlanNEERC 2002499975

1575Yekaterinburg Subway 2Autumn School Contest 2007498863

1580Dean's DebtsAutumn School Contest 2007490876

1447Portkey NetworkUral Championship 2006488991

2030Awesome Backup SystemUral Regional School Programming Contest 2014476486

1569Networking the “Iset”USU Championship 2007454946

1533Fat HobbitsUSU Personal Contest 20074411019

1441From the History of Gringotts BankUral Championship 20064231140

1980Road to InvestorUral Championship 2013422619

1419Maps of the Island WorldsUSU Championship 20054081218

1630TalismanUSU Championship 20083931006

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest3881157

1966Cycling RoadsUral FU Personal Contest 2013387681

1487Chinese FootballUSU Championship 20063651263

1544Classmates 3Ural Championship 20073591232

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest3551074

1281River BasinNEERC 2003 Central Subregional3491396

2113Survive the floodUniversity academic school olympiad in informatics 2019329388

1449Credit Operations 2Timus Top Coders: Second Challenge3241469

1337BureaucracyAutumn School Contest 20043171549

1338AutomobilesUSU Championship 20042751783

1315MDPAR and MIIARUral Championship 2004. Round 12551901

1361Spaceology vs. ChronisticsUral Championship 2005. Round 22551921

1905Travel in TimeUral Championship 20122531097

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional251908

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2361789

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2281210

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest2191735

1610CactusesUral Championship 20082061957

1770The Party of Ural ChampionsUral Championship 20102041678

1270UnicubeUSU Championship 20032022363

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1951947

2017Best of a bad lotNEERC 2014 Eastern Subregional1731295

1367Top SecretUral Championship 2005. Round 21563067

1505Oil TransferNEERC 2006 Eastern Subregional1532894

1833Hopes of RowingUral Championship 20111512041

2055Urban GeographyUral Championship 20151421468

1652Banking CrisisNEERC 2008 Eastern Subregional1392708

2093All Roads Lead to SnowdriftUral FU Personal Contest 20141381315

2128Rubina's SolitaireLater is better than never130893

1199Mouse1273396

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest1223108

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest1133187

1882Old NokiaUral Regional School Programming Contest 20111082671

2140BitMazeCraftUral School Programming Contest 20191031062

1271Sailing DirectionsUSU Championship 2003974683

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest954524

2155QuadrocopterUral School Programming Contest 202095886

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest832522

2132Graph Decomposition. Version 2Later is better than never641689

1847ZamkadyePetrozavodsk Summer 2010. USU Contest634353

2147City BuildingUral School Programming Contest 2019571791

1399Economical Director3410573

2127Determinant of a GraphPetrozavodsk Summer 2018. umnik_team Contest273502

2159EssayUral School Programming Contest 2021211363

2169City Building 2Ural School Programming Contest 2022121916