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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4972803

1074Very Short ProblemUSU Personal Contest 20016232071

1148Building TowersDSAP Vietnam Online Contest November 20012641728

1166Funny Card GameNEERC 2001 Northern Subregional1283522

1171Lost in SpaceRomanian Online Contest December 20013681254

1177Like ComparisonsUSU Personal Contest 20023801218

1199Mouse1203457

1216Two Pawns and One KingUSU Championship 20022222068

1239Ghost BustersNEERC 20021493022

1271Sailing DirectionsUSU Championship 2003954631

1312TrayUral Championship 2004. Round 11552964

1344Gigantic TurnipUSU Championship 2004984571

1369Cockroach RaceUral Championship 2005. Round 22713363

1374MisereUral Championship 2005. Round 13211806

1376Dean's Pyramid 2Ural Championship 2005. Round 1419722

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest409918

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest904959

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2016530

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest419724

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest845276

1394Ships. Version 21420664

1395Pascal vs. C++. Version 21892387

1399Economical Director3210697

1415Mobile LifeUSU Championship 2005449152

1432Twofold LuckUSU Personal Contest 2006517893

1438Time Limit ExceededUSU Personal Contest 20061503009

1460WiresPetrozavodsk Winter 2006. USU Contest1004217

1464LightPetrozavodsk Winter 2006. USU Contest1502899

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1063961

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest904594

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2313472

1536Delights of Pipe-weedUSU Personal Contest 2007537036

1548Sakura and StatisticsUral Championship 20071716239

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest349624

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest359410

1589SokobanNEERC 2007 Eastern Subregional1120005

1594Aztec Treasure664830

1596Knight Mare209464

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest814315

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest744674

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest635378

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest407853

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional457014

1653Death ConveyorNEERC 2008 Eastern Subregional476767

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest496464

1661DodecahedronPetrozavodsk Winter 2008. USU Contest814191

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest734595

1668Death Star 2Petrozavodsk Winter 2008. USU Contest585608

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2411161

1674Drunk KingPetrozavodsk Summer 2008. USU Contest536023

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest526121

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2410997

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1182921

1708Sum of Digits 2Ural Championship 20092211624

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1073039

1763Expert FleaUral Championship 2010565153

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest357019

1840Victim of AdvertisingUral Championship 2011258818

1842Local RootsPetrozavodsk Summer 2010. USU Contest366466

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest653966

1848Fly HuntPetrozavodsk Summer 2010. USU Contest465312

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest317243

1906The Lost CivilizationUral Championship 2012277224

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1211318

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection593609

2016Magic and ScienceNEERC 2014 Eastern Subregional177935

2054AstronomyUral Championship 2015187143

2076VasianaQualification of Eastern Subregional 2015166923

2082PokerUral Championship 2016127843