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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4772820

1074Very Short ProblemUSU Personal Contest 20016052060

1148Building TowersDSAP Vietnam Online Contest November 20012521748

1166Funny Card GameNEERC 2001 Northern Subregional1213595

1171Lost in SpaceRomanian Online Contest December 20013441295

1177Like ComparisonsUSU Personal Contest 20023551259

1199Mouse1083671

1216Two Pawns and One KingUSU Championship 20022162055

1239Ghost BustersNEERC 20021472963

1271Sailing DirectionsUSU Championship 2003924618

1312TrayUral Championship 2004. Round 11542890

1344Gigantic TurnipUSU Championship 2004974474

1369Cockroach RaceUral Championship 2005. Round 22613320

1374MisereUral Championship 2005. Round 13211451

1376Dean's Pyramid 2Ural Championship 2005. Round 1409619

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest399817

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest835172

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1916587

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest409621

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest815286

1394Ships. Version 21320916

1395Pascal vs. C++. Version 21672596

1399Economical Director3010826

1415Mobile LifeUSU Championship 2005439043

1432Twofold LuckUSU Personal Contest 2006478178

1438Time Limit ExceededUSU Personal Contest 20061472969

1460WiresPetrozavodsk Winter 2006. USU Contest974187

1464LightPetrozavodsk Winter 2006. USU Contest1472854

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1043890

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest834768

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2412593

1536Delights of Pipe-weedUSU Personal Contest 2007526885

1548Sakura and StatisticsUral Championship 20071417578

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest339452

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest349238

1589SokobanNEERC 2007 Eastern Subregional921211

1594Aztec Treasure654646

1596Knight Mare199062

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest754408

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest694743

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest605353

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest387807

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional446808

1653Death ConveyorNEERC 2008 Eastern Subregional456684

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest476370

1661DodecahedronPetrozavodsk Winter 2008. USU Contest774173

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest684655

1668Death Star 2Petrozavodsk Winter 2008. USU Contest555586

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2310944

1674Drunk KingPetrozavodsk Summer 2008. USU Contest525825

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest446688

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2310770

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1152843

1708Sum of Digits 2Ural Championship 20091912188

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1062902

1763Expert FleaUral Championship 2010535089

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest356571

1840Victim of AdvertisingUral Championship 2011238734

1842Local RootsPetrozavodsk Summer 2010. USU Contest346289

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest643739

1848Fly HuntPetrozavodsk Summer 2010. USU Contest405534

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest297082

1906The Lost CivilizationUral Championship 2012276640

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1110802

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection553490

2016Magic and ScienceNEERC 2014 Eastern Subregional177076

2054AstronomyUral Championship 2015176533

2076VasianaQualification of Eastern Subregional 2015136774

2082PokerUral Championship 2016126733