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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5502739

1074Very Short ProblemUSU Personal Contest 20016612107

1148Building TowersDSAP Vietnam Online Contest November 20012851729

1166Funny Card GameNEERC 2001 Northern Subregional1423432

1171Lost in SpaceRomanian Online Contest December 20013991248

1177Like ComparisonsUSU Personal Contest 20024011245

1199Mouse1213721

1216Two Pawns and One KingUSU Championship 20022452023

1239Ghost BustersNEERC 20021603038

1271Sailing DirectionsUSU Championship 20031094385

1312TrayUral Championship 2004. Round 11682946

1344Gigantic TurnipUSU Championship 20041154230

1369Cockroach RaceUral Championship 2005. Round 23811030

1374MisereUral Championship 2005. Round 1489151

1376Dean's Pyramid 2Ural Championship 2005. Round 13511795

1383Flower-garden DesignsPetrozavodsk Summer 2005. MSU+USU Contest538426

1384Goat in the Garden 4Petrozavodsk Summer 2005. MSU+USU Contest1084498

1388PhotoPetrozavodsk Summer 2005. MSU+USU Contest3511796

1390Shots at WallsPetrozavodsk Summer 2005. MSU+USU Contest538426

1391SnakePetrozavodsk Summer 2005. MSU+USU Contest915256

1394Ships. Version 21026542

1395Pascal vs. C++. Version 22172252

1399Economical Director468704

1415Mobile LifeUSU Championship 2005548269

1432Twofold LuckUSU Personal Contest 2006627186

1438Time Limit ExceededUSU Personal Contest 20061662940

1460WiresPetrozavodsk Winter 2006. USU Contest1154008

1464LightPetrozavodsk Winter 2006. USU Contest1702783

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1153975

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1124073

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest3610501

1536Delights of Pipe-weedUSU Personal Contest 2007527772

1548Sakura and StatisticsUral Championship 20072912239

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest517597

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest468275

1589SokobanNEERC 2007 Eastern Subregional1023014

1594Aztec Treasure884193

1596Knight Mare318135

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest944180

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest914304

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest794884

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest536900

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional556589

1653Death ConveyorNEERC 2008 Eastern Subregional635867

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest606060

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1083595

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest844513

1668Death Star 2Petrozavodsk Winter 2008. USU Contest675509

1672Droid fliesPetrozavodsk Summer 2008. USU Contest369183

1674Drunk KingPetrozavodsk Summer 2008. USU Contest625867

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest764912

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest349483

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1392800

1708Sum of Digits 2Ural Championship 2009349443

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1153202

1763Expert FleaUral Championship 2010665076

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest456605

1840Victim of AdvertisingUral Championship 2011416991

1842Local RootsPetrozavodsk Summer 2010. USU Contest515674

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest754072

1848Fly HuntPetrozavodsk Summer 2010. USU Contest694381

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest426647

1906The Lost CivilizationUral Championship 2012386626

1952To Kill the DragonPetrozavodsk Winter 2013. Ural FU Contest239121

1954Five PalindromesPetrozavodsk Winter 2013. Ural FU Contest743584

2016Magic and ScienceNEERC 2014 Eastern Subregional316553

2054AstronomyUral Championship 2015326081

2076VasianaNEERC 2015 Eastern Subregional Qualifier276400

2082PokerUral Championship 2016256567

2131Open CupLater is better than never234889

2137Dynamic string complexityLater is better than never234889
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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