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Problem set. Hardest Problems


1058ChocolateNEERC 2000 Central Subregional5152779

1074Very Short ProblemUSU Personal Contest 20016302103

1148Building TowersDSAP Vietnam Online Contest November 20012741710

1166Funny Card GameNEERC 2001 Northern Subregional1313532

1171Lost in SpaceRomanian Online Contest December 20013721273

1177Like ComparisonsUSU Personal Contest 20023841237


1216Two Pawns and One KingUSU Championship 20022292058

1239Ghost BustersNEERC 20021513060

1271Sailing DirectionsUSU Championship 2003964700

1312TrayUral Championship 2004. Round 11573000

1344Gigantic TurnipUSU Championship 20041024513

1369Cockroach RaceUral Championship 2005. Round 22713683

1374MisereUral Championship 2005. Round 13611035

1376Dean's Pyramid 2Ural Championship 2005. Round 1429762

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest429763

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest905077

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2016923

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest439579

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855344

1394Ships. Version 21520309

1395Pascal vs. C++. Version 21962365

1399Economical Director3211004

1415Mobile LifeUSU Championship 2005459200

1432Twofold LuckUSU Personal Contest 2006537835

1438Time Limit ExceededUSU Personal Contest 20061513066

1460WiresPetrozavodsk Winter 2006. USU Contest1044179

1464LightPetrozavodsk Winter 2006. USU Contest1542905

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1084001

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest934583

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2413457

1536Delights of Pipe-weedUSU Personal Contest 2007547130

1548Sakura and StatisticsUral Championship 20071716725

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest359710

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest379297

1589SokobanNEERC 2007 Eastern Subregional1318855

1594Aztec Treasure714715

1596Knight Mare229396

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest814471

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest784623

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest695150

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest417977

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional477020

1653Death ConveyorNEERC 2008 Eastern Subregional496782

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest506597

1661DodecahedronPetrozavodsk Winter 2008. USU Contest963734

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest744712

1668Death Star 2Petrozavodsk Winter 2008. USU Contest585821

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2610944

1674Drunk KingPetrozavodsk Summer 2008. USU Contest536254

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest546156

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2411427

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1232921

1708Sum of Digits 2Ural Championship 20092411372

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1093115

1763Expert FleaUral Championship 2010575306

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest377061

1840Victim of AdvertisingUral Championship 2011288547

1842Local RootsPetrozavodsk Summer 2010. USU Contest366823

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest674076

1848Fly HuntPetrozavodsk Summer 2010. USU Contest525063

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest337288

1906The Lost CivilizationUral Championship 2012287485

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1212116

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection603808

2016Magic and ScienceNEERC 2014 Eastern Subregional188308

2054AstronomyUral Championship 2015207290

2076VasianaQualification of Eastern Subregional 2015167661

2082PokerUral Championship 2016157676

2131Open CupLater is better than never106001

2137Dynamic string complexityLater is better than never96316