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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4512876

1074Very Short ProblemUSU Personal Contest 20015902039

1148Building TowersDSAP Vietnam Online Contest November 20012421756

1166Funny Card GameNEERC 2001 Northern Subregional1183562

1171Lost in SpaceRomanian Online Contest December 20013291307

1177Like ComparisonsUSU Personal Contest 20023251326

1199Mouse1033691

1216Two Pawns and One KingUSU Championship 20022122024

1239Ghost BustersNEERC 20021432942

1271Sailing DirectionsUSU Championship 2003854801

1312TrayUral Championship 2004. Round 11512851

1344Gigantic TurnipUSU Championship 2004934504

1369Cockroach RaceUral Championship 2005. Round 22214525

1374MisereUral Championship 2005. Round 12911955

1376Dean's Pyramid 2Ural Championship 2005. Round 1399515

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2314131

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest785299

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816655

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379922

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest795240

1394Ships. Version 2825909

1395Pascal vs. C++. Version 21592628

1399Economical Director2910691

1415Mobile LifeUSU Championship 2005399480

1432Twofold LuckUSU Personal Contest 2006458201

1438Time Limit ExceededUSU Personal Contest 20061373068

1460WiresPetrozavodsk Winter 2006. USU Contest944158

1464LightPetrozavodsk Winter 2006. USU Contest1432826

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1003888

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest695414

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212874

1536Delights of Pipe-weedUSU Personal Contest 2007506844

1548Sakura and StatisticsUral Championship 20071218432

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2411460

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest329277

1589SokobanNEERC 2007 Eastern Subregional821449

1594Aztec Treasure594782

1596Knight Mare178960

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest605100

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest654760

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest456491

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest377596

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional406994

1653Death ConveyorNEERC 2008 Eastern Subregional406994

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest446390

1661DodecahedronPetrozavodsk Winter 2008. USU Contest734157

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest664540

1668Death Star 2Petrozavodsk Winter 2008. USU Contest466162

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2111066

1674Drunk KingPetrozavodsk Summer 2008. USU Contest485915

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308577

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2110876

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1052932

1708Sum of Digits 2Ural Championship 20091612890

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1022837

1763Expert FleaUral Championship 2010455479

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest336412

1840Victim of AdvertisingUral Championship 2011228377

1842Local RootsPetrozavodsk Summer 2010. USU Contest335959

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest633510

1848Fly HuntPetrozavodsk Summer 2010. USU Contest355694

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest296557

1906The Lost CivilizationUral Championship 2012246597

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1010247

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection513360

2016Magic and ScienceNEERC 2014 Eastern Subregional166467

2054AstronomyUral Championship 2015156122

2076VasianaQualification of Eastern Subregional 2015106595

2082PokerUral Championship 201686888