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Problem set. Graph Theory Problems


IDTitleSourceAuthorsDifficulty

1837Isenbaev's NumberUral Championship 2011581159

1119MetroAutumn School Contest 2001715870

1106Two TeamsTetrahedron Team Online Contest May 2001674374

1136ParliamentNEERC 2001 Central Subregional5012100

1982Electrification PlanUral FU Championship 20132122131

1022Genealogical TreeAutumn School Contest 200010963141

1280Topological SortingNEERC 2003 Central Subregional3620141

1160NetworkNEERC 2001 Northern Subregional3455146

1272Non-Yekaterinburg SubwayUSU Championship 20033479147

1450Russian PipelinesTimus Top Coders: Second Challenge3273153

1709Penguin-AviaUral Championship 20092633153

1210Kind SpiritsAutumn School Contest 20023103163

1930Ivan's CarUral Regional School Programming Contest 20121828166

1242WerewolfUSU Personal Contest 20032873177

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1889189

1080Map ColoringWinter Mathematical Festival Varna 20017230190

1162Currency ExchangeNEERC 2001 Northern Subregional2534197

1208Legendary Teams ContestUSU Local Contest. March 20022350213

1033LabyrinthUral Championship 19996555235

1205By the Underground or by Foot?USU Local Contest. March 20022112237

1109ConferenceBulgarian Online Contest September 20011992250

2034CaravansUral Regional School Programming Contest 2014883285

1320Graph DecompositionUral Championship 2004. Round 21788287

1124MosaicUSU Championship 20011668298

1227Rally ChampionshipNEERC 2002 Central Subregional1671302

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest1227308

1137Bus RoutesNEERC 2001 Central Subregional1545322

1218Episode N-th: The Jedi TournamentUSU Championship 20021557323

1156Two RoundsUral Championship 2001. Round 21519328

1176HyperchannelsUSU Personal Contest 20021491335

1651Shortest SubchainNEERC 2008 Eastern Subregional1207343

1934Black SpotUral FU Championship 2012852352

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 20011400355

1008Image EncodingUSTU PhysTech Cup 20004259364

1291Gear-wheelsSpring School Contest 20041329385

1416ConfidentialUSU Championship 20051309395

1077Travelling Tours1252396

1129Door PaintingUSU Championship 20011220407

1128Partition into GroupsUSU Championship 20011202413

2113Survive the floodUniversity academic school olympiad in informatics 2019356416

1643Attack of the Dark FortressAutumn School Contest 2008976424

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional711459

1329Galactic HistoryAutumn School Contest 20041117460

1198Jobbery1057489

1072RoutingUSU Personal Contest 20012763501

1641DutiesAutumn School Contest 2008823502

2030Awesome Backup SystemUral Regional School Programming Contest 2014495503

1182Team Them Up!NEERC 2001970513

1069Prufer CodeUSU Personal Contest 20012685515

1045Funny GameUSU Local Contest. March 20002901520

1325DirtUral Championship 2004. Round 2950537

1358CablesSpring School Contest 2005949542

1421Credit OperationsTimus Top Coders: First Challenge927544

1056Centers of the NetNEERC 2000 Central Subregional2738549

1400Cellular CharactersAutumn School Contest 2005940549

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional662579

1004Sightseeing TripCentral European Olympiad in Informatics 19992670582

1314Chase in SubwayUral Championship 2004. Round 1867588

1379Cups TransportationUral Championship 2005. Round 1845611

1085MeetingSpring School Contest 20012174623

1980Road to InvestorUral Championship 2013438635

1500Pass LicensesNEERC 2006 Eastern Subregional748639

1254Die HardUSU Local Contest. March 2003783642

1966Cycling RoadsUral FU Personal Contest 2013413680

1096Get the Right Route Plate!USU Local Contest. March 20011821706

1076Trash1939708

1250Sea BurialUSU Local Contest. March 2003688729

1301Cube in LabyrinthUral Championship 1998681746

1392Dreaming of Stars671767

1277Cops and ThievesNEERC 2003 Central Subregional638792

1016Cube on the WalkUSU Local Contest. 19991885818

1323ClassmatesUral Championship 2004. Round 2613828

1339BabiesUSU Championship 2004594861

1575Yekaterinburg Subway 2Autumn School Contest 2007514862

1580Dean's DebtsAutumn School Contest 2007494896

1434Buses in VasyukiUSU Personal Contest 2006557897

1569Networking the “Iset”USU Championship 2007473936

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional261941

1237Evacuation PlanNEERC 2002505986

2128Rubina's SolitaireLater is better than never137991

1533Fat HobbitsUSU Personal Contest 2007466992

1447Portkey NetworkUral Championship 2006498995

1040Airline CompanyUSU Championship 200015191001

2155QuadrocopterUral School Programming Contest 20201031013

1630TalismanUSU Championship 20084021018

2174Dualism of NumbersUral School Programming Contest 2023251046

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest3631089

1905Travel in TimeUral Championship 20122601131

1441From the History of Gringotts BankUral Championship 20064311146

1099Work Scheduling10101147

2140BitMazeCraftUral School Programming Contest 20191111164

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest3941172

1419Maps of the Island WorldsUSU Championship 20054171219

1544Classmates 3Ural Championship 20073621257

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2301270

1487Chinese FootballUSU Championship 20063721273

2017Best of a bad lotNEERC 2014 Eastern Subregional1801342

2093All Roads Lead to SnowdriftUral FU Personal Contest 20141481352

1035Cross-stitchUral Championship 199911211363

1281River BasinNEERC 2003 Central Subregional3621379

1065FrontierNEERC 200010051407

2159EssayUral School Programming Contest 2021351442

2192My GrandfatherICPC Ural Regional Contest Qualifier 2022151466

2132Graph Decomposition. Version 2Later is better than never881486

1449Credit Operations 2Timus Top Coders: Second Challenge3281487

2055Urban GeographyUral Championship 20151511500

1337BureaucracyAutumn School Contest 20043231556

2198Deep UnderstandingICPC Ural Regional Contest Qualifier 2024131589

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest2281730

1770The Party of Ural ChampionsUral Championship 20102061733

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2441785

1338AutomobilesUSU Championship 20042801793

2180Need More TasksUral School Programming Contest 2023101830

2147City BuildingUral School Programming Contest 2019661853

1315MDPAR and MIIARUral Championship 2004. Round 12681854

2195Binary TreesICPC Ural Regional Contest Qualifier 202391929

1361Spaceology vs. ChronisticsUral Championship 2005. Round 22551965

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1991978

1833Hopes of RowingUral Championship 20111612015

1610CactusesUral Championship 20082062020

2169City Building 2Ural School Programming Contest 2022202160

2187Need More GoldUral School Programming Contest 202462287

1270UnicubeUSU Championship 20032042397

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest942430

1652Banking CrisisNEERC 2008 Eastern Subregional1432729

1882Old NokiaUral Regional School Programming Contest 20111102761

1505Oil TransferNEERC 2006 Eastern Subregional1562917

1367Top SecretUral Championship 2005. Round 21633010

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest1253142

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest1183175

1199Mouse1303414

2127Determinant of a GraphPetrozavodsk Summer 2018. umnik_team Contest283952

1847ZamkadyePetrozavodsk Summer 2010. USU Contest664393

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest984513

1271Sailing DirectionsUSU Championship 20031014620

1399Economical Director3610388