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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1177Like ComparisonsUSU Personal Contest 20023931247

1171Lost in SpaceRomanian Online Contest December 20013851269

1148Building TowersDSAP Vietnam Online Contest November 20012801727

1216Two Pawns and One KingUSU Championship 20022332086

1074Very Short ProblemUSU Personal Contest 20016482110

1395Pascal vs. C++. Version 22072314

1058ChocolateNEERC 2000 Central Subregional5272804

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1312882

1464LightPetrozavodsk Winter 2006. USU Contest1592909

1438Time Limit ExceededUSU Personal Contest 20061602991

1312TrayUral Championship 2004. Round 11613015

1239Ghost BustersNEERC 20021533114

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1113215

1199Mouse1303414

1166Funny Card GameNEERC 2001 Northern Subregional1333586

1661DodecahedronPetrozavodsk Winter 2008. USU Contest993793

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection653840

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1094097

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest694227

1460WiresPetrozavodsk Winter 2006. USU Contest1064239

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest864419

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest854465

1344Gigantic TurnipUSU Championship 20041064482

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest984514

1848Fly HuntPetrozavodsk Summer 2010. USU Contest634574

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest804594

1271Sailing DirectionsUSU Championship 20031014621

1594Aztec Treasure764651

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest945020

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest725173

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest675347

1763Expert FleaUral Championship 2010595425

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855496

2131Open CupLater is better than never155830

1668Death Star 2Petrozavodsk Winter 2008. USU Contest605907

1842Local RootsPetrozavodsk Summer 2010. USU Contest456072

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566238

2137Dynamic string complexityLater is better than never136336

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest536563

1653Death ConveyorNEERC 2008 Eastern Subregional536629

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516847

1536Delights of Pipe-weedUSU Personal Contest 2007557265

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest387321

2054AstronomyUral Championship 2015227548

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest347579

1906The Lost CivilizationUral Championship 2012297830

1432Twofold LuckUSU Personal Contest 2006547944

2076VasianaQualification of Eastern Subregional 2015187950

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest438003

2082PokerUral Championship 2016168289

1840Victim of AdvertisingUral Championship 2011318403

2016Magic and ScienceNEERC 2014 Eastern Subregional198795

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest399253

1415Mobile LifeUSU Championship 2005469294

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest389446

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest459493

1376Dean's Pyramid 2Ural Championship 2005. Round 1449667

1596Knight Mare239731

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest439851

1399Economical Director3610389

1374MisereUral Championship 2005. Round 13910654

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2810695

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2611436

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511520

1708Sum of Digits 2Ural Championship 20092511560

1369Cockroach RaceUral Championship 2005. Round 23212398

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2613150

1548Sakura and StatisticsUral Championship 20072214613

1589SokobanNEERC 2007 Eastern Subregional1915525

1394Ships. Version 22315822

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2216315
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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