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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4322865

1074Very Short ProblemUSU Personal Contest 20015562065

1148Building TowersDSAP Vietnam Online Contest November 20012291771

1166Funny Card GameNEERC 2001 Northern Subregional1163469

1171Lost in SpaceRomanian Online Contest December 20013191288

1177Like ComparisonsUSU Personal Contest 20023181296

1199Mouse1023544

1216Two Pawns and One KingUSU Championship 20022042010

1239Ghost BustersNEERC 20021412855

1271Sailing DirectionsUSU Championship 2003854602

1312TrayUral Championship 2004. Round 11462823

1344Gigantic TurnipUSU Championship 2004884545

1369Cockroach RaceUral Championship 2005. Round 22114395

1374MisereUral Championship 2005. Round 12911481

1376Dean's Pyramid 2Ural Championship 2005. Round 1389329

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313571

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest755269

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1815995

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379529

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest775148

1394Ships. Version 2726346

1395Pascal vs. C++. Version 21542591

1399Economical Director2710724

1415Mobile LifeUSU Championship 2005399101

1432Twofold LuckUSU Personal Contest 2006438152

1438Time Limit ExceededUSU Personal Contest 20061313064

1460WiresPetrozavodsk Winter 2006. USU Contest943969

1464LightPetrozavodsk Winter 2006. USU Contest1342866

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest973812

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest655438

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212238

1536Delights of Pipe-weedUSU Personal Contest 2007496614

1548Sakura and StatisticsUral Championship 20071813747

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2211516

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest328774

1589SokobanNEERC 2007 Eastern Subregional721461

1594Aztec Treasure564648

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest574996

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest624649

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest426437

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest347608

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional386817

1653Death ConveyorNEERC 2008 Eastern Subregional376961

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest416321

1661DodecahedronPetrozavodsk Winter 2008. USU Contest674187

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest644356

1668Death Star 2Petrozavodsk Winter 2008. USU Contest436083

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2010677

1674Drunk KingPetrozavodsk Summer 2008. USU Contest406406

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest288429

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2010473

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest962964

1708Sum of Digits 2Ural Championship 20091512484

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional962775

1763Expert FleaUral Championship 2010425330

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest306266

1840Victim of AdvertisingUral Championship 2011217830

1842Local RootsPetrozavodsk Summer 2010. USU Contest295909

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613246

1848Fly HuntPetrozavodsk Summer 2010. USU Contest315621

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest276214

1906The Lost CivilizationUral Championship 2012187052

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection99337

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection393621

2016Magic and ScienceNEERC 2014 Eastern Subregional145806

2076VasianaQualification of eastern subregional contest 201585658

2082PokerUral Championship 201665853