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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4362904

1074Very Short ProblemUSU Personal Contest 20015712058

1148Building TowersDSAP Vietnam Online Contest November 20012361759

1166Funny Card GameNEERC 2001 Northern Subregional1163541

1171Lost in SpaceRomanian Online Contest December 20013241297

1177Like ComparisonsUSU Personal Contest 20023211313

1199Mouse1033599

1216Two Pawns and One KingUSU Championship 20022082016

1239Ghost BustersNEERC 20021412916

1271Sailing DirectionsUSU Championship 2003854698

1312TrayUral Championship 2004. Round 11472862

1344Gigantic TurnipUSU Championship 2004914499

1369Cockroach RaceUral Championship 2005. Round 22214226

1374MisereUral Championship 2005. Round 12911711

1376Dean's Pyramid 2Ural Championship 2005. Round 1389515

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313843

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest765312

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816315

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379719

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest785191

1394Ships. Version 2726873

1395Pascal vs. C++. Version 21572600

1399Economical Director2710988

1415Mobile LifeUSU Championship 2005399285

1432Twofold LuckUSU Personal Contest 2006448171

1438Time Limit ExceededUSU Personal Contest 20061333086

1460WiresPetrozavodsk Winter 2006. USU Contest944060

1464LightPetrozavodsk Winter 2006. USU Contest1342932

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest993830

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest675422

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212546

1536Delights of Pipe-weedUSU Personal Contest 2007496782

1548Sakura and StatisticsUral Championship 20071814103

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2311477

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest329018

1589SokobanNEERC 2007 Eastern Subregional820841

1594Aztec Treasure574746

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest604936

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest644669

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest446399

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest367511

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396900

1653Death ConveyorNEERC 2008 Eastern Subregional387044

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest436290

1661DodecahedronPetrozavodsk Winter 2008. USU Contest704167

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest664386

1668Death Star 2Petrozavodsk Winter 2008. USU Contest456061

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2110688

1674Drunk KingPetrozavodsk Summer 2008. USU Contest456024

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308284

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2110494

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1032879

1708Sum of Digits 2Ural Championship 20091612433

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional992804

1763Expert FleaUral Championship 2010425556

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest316410

1840Victim of AdvertisingUral Championship 2011227969

1842Local RootsPetrozavodsk Summer 2010. USU Contest306074

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613422

1848Fly HuntPetrozavodsk Summer 2010. USU Contest355399

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest286380

1906The Lost CivilizationUral Championship 2012226577

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection109537

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection423669

2016Magic and ScienceNEERC 2014 Eastern Subregional156132

2076VasianaQualification of Eastern Subregional 201586467

2082PokerUral Championship 201666772