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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4072894

1074Very Short ProblemUSU Personal Contest 20015192107

1148Building TowersDSAP Vietnam Online Contest November 20012011915

1166Funny Card GameNEERC 2001 Northern Subregional1143373

1171Lost in SpaceRomanian Online Contest December 20013051284

1177Like ComparisonsUSU Personal Contest 20022991314

1199Mouse953588

1216Two Pawns and One KingUSU Championship 20022001958

1239Ghost BustersNEERC 20021402747

1271Sailing DirectionsUSU Championship 2003834499

1312TrayUral Championship 2004. Round 11452720

1344Gigantic TurnipUSU Championship 2004854493

1369Cockroach RaceUral Championship 2005. Round 21914750

1374MisereUral Championship 2005. Round 12811298

1376Dean's Pyramid 2Ural Championship 2005. Round 1388944

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313012

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest725237

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1616515

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest3210224

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest764993

1394Ships. Version 2626839

1395Pascal vs. C++. Version 21372759

1399Economical Director2610462

1415Mobile LifeUSU Championship 2005388905

1432Twofold LuckUSU Personal Contest 2006437794

1438Time Limit ExceededUSU Personal Contest 20061263037

1460WiresPetrozavodsk Winter 2006. USU Contest824273

1464LightPetrozavodsk Winter 2006. USU Contest1272869

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest893920

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest605544

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2111977

1536Delights of Pipe-weedUSU Personal Contest 2007436978

1548Sakura and StatisticsUral Championship 20071415182

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2111206

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest298908

1589SokobanNEERC 2007 Eastern Subregional522907

1594Aztec Treasure534501

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest534960

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest544883

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest426009

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest337267

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional376483

1653Death ConveyorNEERC 2008 Eastern Subregional366624

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest405995

1661DodecahedronPetrozavodsk Winter 2008. USU Contest614221

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest594344

1668Death Star 2Petrozavodsk Winter 2008. USU Contest425764

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1910262

1674Drunk KingPetrozavodsk Summer 2008. USU Contest376332

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest268267

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1910044

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest932828

1708Sum of Digits 2Ural Championship 20091511565

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional952577

1763Expert FleaUral Championship 2010405060

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest285937

1840Victim of AdvertisingUral Championship 2011207247

1842Local RootsPetrozavodsk Summer 2010. USU Contest255850

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest602925

1848Fly HuntPetrozavodsk Summer 2010. USU Contest285388

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest255834

1906The Lost CivilizationUral Championship 2012186094

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection78818

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection323570

2016Magic and ScienceNEERC 2014 Eastern Subregional144607

2076VasianaQualification of eastern subregional contest 201574225

2082PokerUral Championship 201644526