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Problem set. Graph Theory Problems


IDTitleSourceAuthorsDifficulty

1004Sightseeing TripCentral European Olympiad in Informatics 19992714580

1008Image EncodingUSTU PhysTech Cup 20004280367

1016Cube on the WalkUSU Local Contest. 19991900823

1022Genealogical TreeAutumn School Contest 200011052142

1033LabyrinthUral Championship 19996598237

1035Cross-stitchUral Championship 199911311368

1040Airline CompanyUSU Championship 200015401000

1045Funny GameUSU Local Contest. March 20002933521

1056Centers of the NetNEERC 2000 Central Subregional2769550

1065FrontierNEERC 200010141413

1069Prufer CodeUSU Personal Contest 20012717516

1072RoutingUSU Personal Contest 20012793502

1076Trash1959710

1077Travelling Tours1270396

1080Map ColoringWinter Mathematical Festival Varna 20017308190

1085MeetingSpring School Contest 20012195625

1096Get the Right Route Plate!USU Local Contest. March 20011846706

1099Work Scheduling10291141

1106Two TeamsTetrahedron Team Online Contest May 2001682874

1109ConferenceBulgarian Online Contest September 20012015250

1119MetroAutumn School Contest 2001722470

1124MosaicUSU Championship 20011692298

1128Partition into GroupsUSU Championship 20011218412

1129Door PaintingUSU Championship 20011237406

1136ParliamentNEERC 2001 Central Subregional5068100

1137Bus RoutesNEERC 2001 Central Subregional1562322

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 20011435351

1156Two RoundsUral Championship 2001. Round 21546326

1160NetworkNEERC 2001 Northern Subregional3499146

1162Currency ExchangeNEERC 2001 Northern Subregional2573196

1176HyperchannelsUSU Personal Contest 20021510335

1182Team Them Up!NEERC 2001992508

1198Jobbery1074487

1199Mouse1153876

1205By the Underground or by Foot?USU Local Contest. March 20022156235

1208Legendary Teams ContestUSU Local Contest. March 20022374214

1210Kind SpiritsAutumn School Contest 20023003170

1218Episode N-th: The Jedi TournamentUSU Championship 20021581322

1227Rally ChampionshipNEERC 2002 Central Subregional1693301

1237Evacuation PlanNEERC 2002512985

1242WerewolfUSU Personal Contest 20032919176

1250Sea BurialUSU Local Contest. March 2003702724

1254Die HardUSU Local Contest. March 2003789645

1270UnicubeUSU Championship 20032182276

1271Sailing DirectionsUSU Championship 20031054513

1272Non-Yekaterinburg SubwayUSU Championship 20033513147

1277Cops and ThievesNEERC 2003 Central Subregional589867

1280Topological SortingNEERC 2003 Central Subregional3661141

1281River BasinNEERC 2003 Central Subregional2771809

1291Gear-wheelsSpring School Contest 20041354382

1301Cube in LabyrinthUral Championship 1998690745

1314Chase in SubwayUral Championship 2004. Round 1884583

1315MDPAR and MIIARUral Championship 2004. Round 12751830

1320Graph DecompositionUral Championship 2004. Round 21809287

1323ClassmatesUral Championship 2004. Round 2619829

1325DirtUral Championship 2004. Round 2967534

1329Galactic HistoryAutumn School Contest 20041139456

1337BureaucracyAutumn School Contest 20043331529

1338AutomobilesUSU Championship 20042921741

1339BabiesUSU Championship 2004605855

1358CablesSpring School Contest 2005966539

1361Spaceology vs. ChronisticsUral Championship 2005. Round 22691888

1367Top SecretUral Championship 2005. Round 21672976

1379Cups TransportationUral Championship 2005. Round 1865603

1392Dreaming of Stars682763

1399Economical Director429315

1400Cellular CharactersAutumn School Contest 2005952549

1416ConfidentialUSU Championship 20051333392

1419Maps of the Island WorldsUSU Championship 20054251210

1421Credit OperationsTimus Top Coders: First Challenge942542

1434Buses in VasyukiUSU Personal Contest 2006574881

1441From the History of Gringotts BankUral Championship 20064391139

1447Portkey NetworkUral Championship 2006514976

1449Credit Operations 2Timus Top Coders: Second Challenge3341480

1450Russian PipelinesTimus Top Coders: Second Challenge3333152

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1094150

1487Chinese FootballUSU Championship 20063841250

1500Pass LicensesNEERC 2006 Eastern Subregional756641

1505Oil TransferNEERC 2006 Eastern Subregional1612869

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest4121137

1533Fat HobbitsUSU Personal Contest 2007480977

1544Classmates 3Ural Championship 20073681255

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2511763

1569Networking the “Iset”USU Championship 2007492914

1575Yekaterinburg Subway 2Autumn School Contest 2007522862

1580Dean's DebtsAutumn School Contest 2007510881

1610CactusesUral Championship 20082102016

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest1293103

1630TalismanUSU Championship 20084161002

1641DutiesAutumn School Contest 2008832505

1643Attack of the Dark FortressAutumn School Contest 2008991425

1651Shortest SubchainNEERC 2008 Eastern Subregional1222345

1652Banking CrisisNEERC 2008 Eastern Subregional1492672

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest2051957

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest2331724

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest1292977

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest3751075

1709Penguin-AviaUral Championship 20092657155

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional678577

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest1244310

1770The Party of Ural ChampionsUral Championship 20102101737

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1913191

1833Hopes of RowingUral Championship 20111652015

1837Isenbaev's NumberUral Championship 2011589960

1847ZamkadyePetrozavodsk Summer 2010. USU Contest744074

1882Old NokiaUral Regional School Programming Contest 20111162696

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional730458

1905Travel in TimeUral Championship 20122681130

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2371269

1930Ivan's CarUral Regional School Programming Contest 20121889165

1934Black SpotUral FU Championship 2012865357

1966Cycling RoadsUral FU Personal Contest 2013429675

1980Road to InvestorUral Championship 2013454633

1982Electrification PlanUral FU Championship 20132162133

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional271941

2017Best of a bad lotNEERC 2014 Eastern Subregional1861349

2030Awesome Backup SystemUral Regional School Programming Contest 2014506510

2034CaravansUral Regional School Programming Contest 2014913285

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest992404

2055Urban GeographyUral Championship 20151611468

2093All Roads Lead to SnowdriftUral FU Personal Contest 20141541363

2113Survive the floodUniversity-Academy Olympiad 2019376422

2127Determinant of a GraphPetrozavodsk Summer 2018. umnik_team contest373421

2128Rubina's SolitaireLater is better than never149983

2132Graph Decomposition. Version 2Later is better than never941504

2140BitMazeCraftUral School Programming Contest 20191221148

2147City BuildingUral School Programming Contest 2019711871

2155QuadrocopterUral School Programming Contest 2020119973

2159EssayUral School Programming Contest 2021471344

2169City Building 2Ural School Programming Contest 2022321822

2174Dualism of NumbersUral School Programming Contest 202345885

2180Need More TasksUral School Programming Contest 2023221521

2187Need More GoldUral School Programming Contest 2024191678

2192My GrandfatherICPC Ural Regional Contest Qualifier 202240974

2195Binary TreesICPC Ural Regional Contest Qualifier 2023151948

2198Deep UnderstandingICPC Ural Regional Contest Qualifier 2024271314

2200He is not a knight for you 2University-Academy Olympiad 2020101425

2219Philosophical QuestionICPC Ural Regional Contest Qualifier 2025121292

2226County of SquirrelsUral Championship 2025161094