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Problem set. Hardest Problems

Solved problems: show | hide  •  Sort by: id | authors | difficulty

IDTitleSourceAuthorsDifficulty

1177Like ComparisonsUSU Personal Contest 20023931246

1171Lost in SpaceRomanian Online Contest December 20013851269

1148Building TowersDSAP Vietnam Online Contest November 20012801726

1216Two Pawns and One KingUSU Championship 20022332085

1074Very Short ProblemUSU Personal Contest 20016482109

1395Pascal vs. C++. Version 22072313

1058ChocolateNEERC 2000 Central Subregional5272802

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1312881

1464LightPetrozavodsk Winter 2006. USU Contest1592908

1438Time Limit ExceededUSU Personal Contest 20061602989

1312TrayUral Championship 2004. Round 11613014

1239Ghost BustersNEERC 20021533113

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1113213

1199Mouse1303413

1166Funny Card GameNEERC 2001 Northern Subregional1333584

1661DodecahedronPetrozavodsk Winter 2008. USU Contest993791

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection653837

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1094095

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest694224

1460WiresPetrozavodsk Winter 2006. USU Contest1064237

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest864416

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest854463

1344Gigantic TurnipUSU Championship 20041064481

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest984512

1848Fly HuntPetrozavodsk Summer 2010. USU Contest634571

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest804592

1271Sailing DirectionsUSU Championship 20031014619

1594Aztec Treasure764648

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest945018

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest725170

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest675344

1763Expert FleaUral Championship 2010595422

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855494

2131Open CupLater is better than never155816

1668Death Star 2Petrozavodsk Winter 2008. USU Contest605904

1842Local RootsPetrozavodsk Summer 2010. USU Contest456067

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566234

2137Dynamic string complexityLater is better than never136321

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest536560

1653Death ConveyorNEERC 2008 Eastern Subregional536626

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516843

1536Delights of Pipe-weedUSU Personal Contest 2007557262

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest387316

2054AstronomyUral Championship 2015227539

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest347573

1906The Lost CivilizationUral Championship 2012297822

2076VasianaQualification of Eastern Subregional 2015187939

1432Twofold LuckUSU Personal Contest 2006547941

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest437999

2082PokerUral Championship 2016168277

1840Victim of AdvertisingUral Championship 2011318397

2016Magic and ScienceNEERC 2014 Eastern Subregional198785

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest399249

1415Mobile LifeUSU Championship 2005469290

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest389442

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest459489

1376Dean's Pyramid 2Ural Championship 2005. Round 1449664

1596Knight Mare239723

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest439847

1399Economical Director3610384

1374MisereUral Championship 2005. Round 13910650

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2810689

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2611429

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511509

1708Sum of Digits 2Ural Championship 20092511553

1369Cockroach RaceUral Championship 2005. Round 23212393

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2613144

1548Sakura and StatisticsUral Championship 20072214606

1589SokobanNEERC 2007 Eastern Subregional1915518

1394Ships. Version 22315816

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2216309
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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