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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4392906

1074Very Short ProblemUSU Personal Contest 20015752059

1148Building TowersDSAP Vietnam Online Contest November 20012381757

1166Funny Card GameNEERC 2001 Northern Subregional1163566

1171Lost in SpaceRomanian Online Contest December 20013251303

1177Like ComparisonsUSU Personal Contest 20023221318

1199Mouse1033628

1216Two Pawns and One KingUSU Championship 20022082030

1239Ghost BustersNEERC 20021412937

1271Sailing DirectionsUSU Championship 2003854731

1312TrayUral Championship 2004. Round 11472882

1344Gigantic TurnipUSU Championship 2004914529

1369Cockroach RaceUral Championship 2005. Round 22214322

1374MisereUral Championship 2005. Round 12911790

1376Dean's Pyramid 2Ural Championship 2005. Round 1389579

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313936

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest765347

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816424

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379785

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest785226

1394Ships. Version 2727053

1395Pascal vs. C++. Version 21582603

1399Economical Director2810787

1415Mobile LifeUSU Championship 2005399347

1432Twofold LuckUSU Personal Contest 2006448230

1438Time Limit ExceededUSU Personal Contest 20061343086

1460WiresPetrozavodsk Winter 2006. USU Contest944091

1464LightPetrozavodsk Winter 2006. USU Contest1342955

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest993860

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest675465

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212652

1536Delights of Pipe-weedUSU Personal Contest 2007496839

1548Sakura and StatisticsUral Championship 20071814225

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2311583

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest329101

1589SokobanNEERC 2007 Eastern Subregional821036

1594Aztec Treasure574804

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest604989

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest644719

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest446467

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest377430

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396976

1653Death ConveyorNEERC 2008 Eastern Subregional387121

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest436361

1661DodecahedronPetrozavodsk Winter 2008. USU Contest714162

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest664436

1668Death Star 2Petrozavodsk Winter 2008. USU Contest456130

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2110810

1674Drunk KingPetrozavodsk Summer 2008. USU Contest456093

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308378

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2110617

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1032913

1708Sum of Digits 2Ural Championship 20091612580

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1002814

1763Expert FleaUral Championship 2010425633

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest316511

1840Victim of AdvertisingUral Championship 2011228100

1842Local RootsPetrozavodsk Summer 2010. USU Contest306180

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613482

1848Fly HuntPetrozavodsk Summer 2010. USU Contest355494

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest286492

1906The Lost CivilizationUral Championship 2012236512

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection109765

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection433686

2016Magic and ScienceNEERC 2014 Eastern Subregional156323

2076VasianaQualification of Eastern Subregional 201586744

2082PokerUral Championship 201667086