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Problem set. Graph Theory Problems


IDTitleSourceAuthorsDifficulty

1022Genealogical TreeAutumn School Contest 200010036137

1119MetroAutumn School Contest 2001604574

1033LabyrinthUral Championship 19995979229

1106Two TeamsTetrahedron Team Online Contest May 2001580576

1080Map ColoringWinter Mathematical Festival Varna 20015045242

1837Isenbaev's NumberUral Championship 2011478157

1136ParliamentNEERC 2001 Central Subregional450599

1008Image EncodingUSTU PhysTech Cup 20004022343

1280Topological SortingNEERC 2003 Central Subregional3149146

1210Kind SpiritsAutumn School Contest 20023068147

1272Non-Yekaterinburg SubwayUSU Championship 20033003153

1045Funny GameUSU Local Contest. March 20002632509

1072RoutingUSU Personal Contest 20012565480

1056Computer NetNEERC 2000 Central Subregional2517531

1004Sightseeing TripCentral European Olympiad in Informatics 19992453563

1069Prufer CodeUSU Personal Contest 20012363521

1242WerewolfUSU Personal Contest 20032213205

1709Penguin-AviaUral Championship 20092198154

1208Legendary Teams ContestUSU Local Contest. March 20022123211

1085MeetingSpring School Contest 20012037592

1205By the Underground or by Foot?USU Local Contest. March 20021925232

1076Trash1822671

1109ConferenceBulgarian Online Contest September 20011808245

1016Cube on the WalkUSU Local Contest. 19991769775

1450Russian PipelinesTimus Top Coders: Second Challenge1724259

1096Get the Right Route Plate!USU Local Contest. March 20011665688

1160NetworkNEERC 2001 Northern Subregional1627278

1982Electrification PlanUral FU Championship 20131626123

1320Graph DecompositionUral Championship 2004. Round 21530301

1137Bus RoutesNEERC 2001 Central Subregional1508294

1124MosaicUSU Championship 20011454305

1227Rally ChampionshipNEERC 2002 Central Subregional1452310

1218Episode N-th: The Jedi TournamentUSU Championship 20021381326

1040Airline CompanyUSU Championship 20001372985

1156Two RoundsUral Championship 2001. Round 21338332

1930Ivan's CarUral Regional School Programming Contest 20121292176

1176HyperchannelsUSU Personal Contest 20021239359

1291Gear-wheelsSpring School Contest 20041150399

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 20011148386

1416ConfidentialUSU Championship 20051122414

1077Travelling Tours1096403

1162Currency ExchangeNEERC 2001 Northern Subregional1079411

1128Partition into GroupsUSU Championship 20011059418

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest1047297

1035Cross-stitchUral Championship 199910331315

1651Shortest SubchainNEERC 2008 Eastern Subregional1013347

1329Galactic HistoryAutumn School Contest 2004989467

1129Door PaintingUSU Championship 2001983450

1065FrontierNEERC 20009051390

1099Work Scheduling8881161

1198Jobbery882527

1182Team Them Up!NEERC 2001871510

1400Cellular CharactersAutumn School Contest 2005849548

1358CablesSpring School Contest 2005825561

1421Credit OperationsTimus Top Coders: First Challenge825547

1325DirtUral Championship 2004. Round 2821558

1643Attack of the Dark FortressAutumn School Contest 2008770456

1641DutiesAutumn School Contest 2008744472

1314Chase in SubwayUral Championship 2004. Round 1728628

1934Black SpotUral FU Championship 2012720313

1254Die HardUSU Local Contest. March 2003693649

1500Pass LicensesNEERC 2006 Eastern Subregional667633

2034CaravansUral Regional School Programming Contest 2014662258

1379Cups TransportationUral Championship 2005. Round 1660702

1250Sea BurialUSU Local Contest. March 2003630713

1301Cube in LabyrinthUral Championship 1998615741

1392Dreaming of Stars612757

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional610417

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional577551

1277Cops and ThievesNEERC 2003 Central Subregional576786

1323ClassmatesUral Championship 2004. Round 2556819

1806Mobile TelegraphsNEERC 2010 Eastern Subregional531535

1339BabiesUSU Championship 2004497923

1237Evacuation PlanNEERC 2002464960

1580Dean's DebtsAutumn School Contest 2007437878

1434Buses in VasyukiUSU Personal Contest 20064281040

1447Portkey NetworkUral Championship 20064261037

1575Yekaterinburg Subway 2Autumn School Contest 2007415923

2030Awesome Backup SystemUral Regional School Programming Contest 2014400424

1533Fat HobbitsUSU Personal Contest 20073741082

1569Networking the “Iset”USU Championship 20073741024

1441From the History of Gringotts BankUral Championship 20063691193

1630TalismanUSU Championship 2008366949

1419Maps of the Island WorldsUSU Championship 20053501302

1980Road to InvestorUral Championship 2013349578

1544Classmates 3Ural Championship 20073331196

1487Chinese FootballUSU Championship 20063271278

1966Cycling RoadsUral FU Personal Contest 2013326627

1281River BasinNEERC 2003 Central Subregional3191400

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest3151054

1449Credit Operations 2Timus Top Coders: Second Challenge3011444

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2981353

1337BureaucracyAutumn School Contest 20042851581

1338AutomobilesUSU Championship 20042521787

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional250884

1315MDPAR and MIIARUral Championship 2004. Round 12241980

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional221756

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2201715

1905Travel in TimeUral Championship 20122161020

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21992244

1610CactusesUral Championship 20081921860

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1901741

1770The Party of Ural ChampionsUral Championship 20101801615

1270UnicubeUSU Championship 20031792436

2113Survive the floodUniversity academic school olympiad in informatics 2019177326

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1701946

2017Best of a bad lotNEERC 2014 Eastern Subregional1481106

1367Top SecretUral Championship 2005. Round 21423086

1505Oil TransferNEERC 2006 Eastern Subregional1332997

1652Banking CrisisNEERC 2008 Eastern Subregional1312517

2055Urban GeographyUral Championship 20151131299

1833Hopes of RowingUral Championship 20111052381

1199Mouse1033732

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest1013085

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest1003292

2093All Roads Lead to SnowdriftUral FU Personal Contest 2014941239

1882Old NokiaUral Regional School Programming Contest 2011902593

1271Sailing DirectionsUSU Championship 2003874746

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest715336

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest672236

2128Rubina's SolitaireLater is better than never59777

1847ZamkadyePetrozavodsk Summer 2010. USU Contest524228

2140BitMazeCraftUral School Programming Contest 201945877

1399Economical Director2910810

2132Graph Decomposition. Version 2Later is better than never271449

2147City BuildingUral School Programming Contest 2019241418

2127Determinant of a GraphPetrozavodsk Summer 2018. t.me/umnik_team Contest132548