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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4432902

1074Very Short ProblemUSU Personal Contest 20015762071

1148Building TowersDSAP Vietnam Online Contest November 20012411749

1166Funny Card GameNEERC 2001 Northern Subregional1173562

1171Lost in SpaceRomanian Online Contest December 20013271304

1177Like ComparisonsUSU Personal Contest 20023231324

1199Mouse1033657

1216Two Pawns and One KingUSU Championship 20022102026

1239Ghost BustersNEERC 20021422938

1271Sailing DirectionsUSU Championship 2003854763

1312TrayUral Championship 2004. Round 11482883

1344Gigantic TurnipUSU Championship 2004924514

1369Cockroach RaceUral Championship 2005. Round 22214416

1374MisereUral Championship 2005. Round 12911866

1376Dean's Pyramid 2Ural Championship 2005. Round 1389641

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2314026

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest775320

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816531

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379848

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest795201

1394Ships. Version 2825716

1395Pascal vs. C++. Version 21582622

1399Economical Director2810873

1415Mobile LifeUSU Championship 2005399409

1432Twofold LuckUSU Personal Contest 2006448287

1438Time Limit ExceededUSU Personal Contest 20061363065

1460WiresPetrozavodsk Winter 2006. USU Contest944122

1464LightPetrozavodsk Winter 2006. USU Contest1402858

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest993890

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest695367

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212755

1536Delights of Pipe-weedUSU Personal Contest 2007506780

1548Sakura and StatisticsUral Championship 20071913850

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2311687

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest329183

1589SokobanNEERC 2007 Eastern Subregional821228

1594Aztec Treasure594719

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest605040

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest644768

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest456415

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest377507

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional406910

1653Death ConveyorNEERC 2008 Eastern Subregional406910

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest436430

1661DodecahedronPetrozavodsk Winter 2008. USU Contest724156

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest664484

1668Death Star 2Petrozavodsk Winter 2008. USU Contest466086

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2110929

1674Drunk KingPetrozavodsk Summer 2008. USU Contest485841

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308470

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2110737

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1042920

1708Sum of Digits 2Ural Championship 20091612724

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1022798

1763Expert FleaUral Championship 2010435600

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest336303

1840Victim of AdvertisingUral Championship 2011228229

1842Local RootsPetrozavodsk Summer 2010. USU Contest335846

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613541

1848Fly HuntPetrozavodsk Summer 2010. USU Contest355587

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest296433

1906The Lost CivilizationUral Championship 2012246449

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection109989

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection463568

2016Magic and ScienceNEERC 2014 Eastern Subregional166259

2076VasianaQualification of Eastern Subregional 2015106313

2082PokerUral Championship 201667394