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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4352877

1074Very Short ProblemUSU Personal Contest 20015642059

1148Building TowersDSAP Vietnam Online Contest November 20012321768

1166Funny Card GameNEERC 2001 Northern Subregional1163504

1171Lost in SpaceRomanian Online Contest December 20013211294

1177Like ComparisonsUSU Personal Contest 20023201302

1199Mouse1033554

1216Two Pawns and One KingUSU Championship 20022072003

1239Ghost BustersNEERC 20021412884

1271Sailing DirectionsUSU Championship 2003854649

1312TrayUral Championship 2004. Round 11472833

1344Gigantic TurnipUSU Championship 2004914453

1369Cockroach RaceUral Championship 2005. Round 22114536

1374MisereUral Championship 2005. Round 12911593

1376Dean's Pyramid 2Ural Championship 2005. Round 1389419

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313703

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest765258

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816150

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379621

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest775198

1394Ships. Version 2726601

1395Pascal vs. C++. Version 21572571

1399Economical Director2710852

1415Mobile LifeUSU Championship 2005399190

1432Twofold LuckUSU Personal Contest 2006448083

1438Time Limit ExceededUSU Personal Contest 20061333052

1460WiresPetrozavodsk Winter 2006. USU Contest944013

1464LightPetrozavodsk Winter 2006. USU Contest1342898

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest983820

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest665428

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212387

1536Delights of Pipe-weedUSU Personal Contest 2007496695

1548Sakura and StatisticsUral Championship 20071813920

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2211671

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest328892

1589SokobanNEERC 2007 Eastern Subregional721754

1594Aztec Treasure564730

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest604857

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest644594

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest446295

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest357555

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396785

1653Death ConveyorNEERC 2008 Eastern Subregional386927

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest426302

1661DodecahedronPetrozavodsk Winter 2008. USU Contest694148

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest654369

1668Death Star 2Petrozavodsk Winter 2008. USU Contest446069

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2110505

1674Drunk KingPetrozavodsk Summer 2008. USU Contest416385

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest298350

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2010653

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1022854

1708Sum of Digits 2Ural Championship 20091612212

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional992750

1763Expert FleaUral Championship 2010425439

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest316257

1840Victim of AdvertisingUral Championship 2011218022

1842Local RootsPetrozavodsk Summer 2010. USU Contest296064

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613331

1848Fly HuntPetrozavodsk Summer 2010. USU Contest335500

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest276378

1906The Lost CivilizationUral Championship 2012226367

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection109193

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection403678

2016Magic and ScienceNEERC 2014 Eastern Subregional155844

2076VasianaQualification of eastern subregional contest 201586050

2082PokerUral Championship 201666298