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Problem set. Graph Theory Problems


IDTitleSourceAuthorsDifficulty

1004Sightseeing TripCentral European Olympiad in Informatics 19992716579

1008Image EncodingUSTU PhysTech Cup 20004281367

1016Cube on the WalkUSU Local Contest. 19991901822

1022Genealogical TreeAutumn School Contest 200011052142

1033LabyrinthUral Championship 19996599237

1035Cross-stitchUral Championship 199911311369

1040Airline CompanyUSU Championship 200015401000

1045Funny GameUSU Local Contest. March 20002934521

1056Centers of the NetNEERC 2000 Central Subregional2769550

1065FrontierNEERC 200010141413

1069Prufer CodeUSU Personal Contest 20012723515

1072RoutingUSU Personal Contest 20012793502

1076Trash1959710

1077Travelling Tours1271395

1080Map ColoringWinter Mathematical Festival Varna 20017337189

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 2001722670

1124MosaicUSU Championship 20011693298

1128Partition into GroupsUSU Championship 20011219412

1129Door PaintingUSU Championship 20011237406

1136ParliamentNEERC 2001 Central Subregional5069100

1137Bus RoutesNEERC 2001 Central Subregional1562322

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 20011443349

1156Two RoundsUral Championship 2001. Round 21547326

1160NetworkNEERC 2001 Northern Subregional3502146

1162Currency ExchangeNEERC 2001 Northern Subregional2578196

1176HyperchannelsUSU Personal Contest 20021511334

1182Team Them Up!NEERC 2001993508

1198Jobbery1074487

1199Mouse1153877

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 2002513983

1242WerewolfUSU Personal Contest 20032938175

1250Sea BurialUSU Local Contest. March 2003702724

1254Die HardUSU Local Contest. March 2003789645

1270UnicubeUSU Championship 20032182277

1271Sailing DirectionsUSU Championship 20031054514

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 1884584

1315MDPAR and MIIARUral Championship 2004. Round 12751831

1320Graph DecompositionUral Championship 2004. Round 21809287

1323ClassmatesUral Championship 2004. Round 2619830

1325DirtUral Championship 2004. Round 2967534

1329Galactic HistoryAutumn School Contest 20041139456

1337BureaucracyAutumn School Contest 20043331529

1338AutomobilesUSU Championship 20042921742

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 1866603

1392Dreaming of Stars682763

1399Economical Director429318

1400Cellular CharactersAutumn School Contest 2005952549

1416ConfidentialUSU Championship 20051333392

1419Maps of the Island WorldsUSU Championship 20054251211

1421Credit OperationsTimus Top Coders: First Challenge942542

1434Buses in VasyukiUSU Personal Contest 2006574881

1441From the History of Gringotts BankUral Championship 20064391140

1447Portkey NetworkUral Championship 2006514977

1449Credit Operations 2Timus Top Coders: Second Challenge3341480

1450Russian PipelinesTimus Top Coders: Second Challenge3335152

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1094151

1487Chinese FootballUSU Championship 20063841251

1500Pass LicensesNEERC 2006 Eastern Subregional756641

1505Oil TransferNEERC 2006 Eastern Subregional1612870

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest4121138

1533Fat HobbitsUSU Personal Contest 2007480977

1544Classmates 3Ural Championship 20073681255

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2511764

1569Networking the “Iset”USU Championship 2007492915

1575Yekaterinburg Subway 2Autumn School Contest 2007522862

1580Dean's DebtsAutumn School Contest 2007510882

1610CactusesUral Championship 20082112007

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest1293104

1630TalismanUSU Championship 20084161002

1641DutiesAutumn School Contest 2008832506

1643Attack of the Dark FortressAutumn School Contest 2008992425

1651Shortest SubchainNEERC 2008 Eastern Subregional1222345

1652Banking CrisisNEERC 2008 Eastern Subregional1492673

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest2051958

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest2331725

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest1292978

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest3751075

1709Penguin-AviaUral Championship 20092659154

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional679576

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest1245310

1770The Party of Ural ChampionsUral Championship 20102101738

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1915190

1833Hopes of RowingUral Championship 20111652016

1837Isenbaev's NumberUral Championship 2011590760

1847ZamkadyePetrozavodsk Summer 2010. USU Contest744076

1882Old NokiaUral Regional School Programming Contest 20111162698

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional730459

1905Travel in TimeUral Championship 20122681130

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2371270

1930Ivan's CarUral Regional School Programming Contest 20121891165

1934Black SpotUral FU Championship 2012867356

1966Cycling RoadsUral FU Personal Contest 2013429676

1980Road to InvestorUral Championship 2013454633

1982Electrification PlanUral FU Championship 20132167133

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional271941

2017Best of a bad lotNEERC 2014 Eastern Subregional1871343

2030Awesome Backup SystemUral Regional School Programming Contest 2014506511

2034CaravansUral Regional School Programming Contest 2014913286

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest1002384

2055Urban GeographyUral Championship 20151611469

2093All Roads Lead to SnowdriftUral FU Personal Contest 20141541364

2113Survive the floodUniversity-Academy Olympiad 2019376422

2127Determinant of a GraphPetrozavodsk Summer 2018. umnik_team contest373426

2128Rubina's SolitaireLater is better than never149985

2132Graph Decomposition. Version 2Later is better than never951492

2140BitMazeCraftUral School Programming Contest 20191221150

2147City BuildingUral School Programming Contest 2019721851

2155QuadrocopterUral School Programming Contest 2020119975

2159EssayUral School Programming Contest 2021481325

2169City Building 2Ural School Programming Contest 2022331786

2174Dualism of NumbersUral School Programming Contest 202345890

2180Need More TasksUral School Programming Contest 2023231483

2187Need More GoldUral School Programming Contest 2024201631

2192My GrandfatherICPC Ural Regional Contest Qualifier 202240980

2195Binary TreesICPC Ural Regional Contest Qualifier 2023161884

2198Deep UnderstandingICPC Ural Regional Contest Qualifier 2024271321

2200He is not a knight for you 2University-Academy Olympiad 2020101438

2219Philosophical QuestionICPC Ural Regional Contest Qualifier 2025161104

2226County of SquirrelsUral Championship 2025171064