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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5492741

1074Very Short ProblemUSU Personal Contest 20016602108

1148Building TowersDSAP Vietnam Online Contest November 20012851727

1166Funny Card GameNEERC 2001 Northern Subregional1423429

1171Lost in SpaceRomanian Online Contest December 20013981250

1177Like ComparisonsUSU Personal Contest 20024001246

1199Mouse1213717

1216Two Pawns and One KingUSU Championship 20022452021

1239Ghost BustersNEERC 20021603035

1271Sailing DirectionsUSU Championship 20031094381

1312TrayUral Championship 2004. Round 11682943

1344Gigantic TurnipUSU Championship 20041154226

1369Cockroach RaceUral Championship 2005. Round 23711255

1374MisereUral Championship 2005. Round 1479303

1376Dean's Pyramid 2Ural Championship 2005. Round 13412051

1383Flower-garden DesignsPetrozavodsk Summer 2005. MSU+USU Contest528554

1384Goat in the Garden 4Petrozavodsk Summer 2005. MSU+USU Contest1084494

1388PhotoPetrozavodsk Summer 2005. MSU+USU Contest3412053

1390Shots at WallsPetrozavodsk Summer 2005. MSU+USU Contest538418

1391SnakePetrozavodsk Summer 2005. MSU+USU Contest915251

1394Ships. Version 2829464

1395Pascal vs. C++. Version 22172250

1399Economical Director458852

1415Mobile LifeUSU Championship 2005538392

1432Twofold LuckUSU Personal Contest 2006627179

1438Time Limit ExceededUSU Personal Contest 20061662937

1460WiresPetrozavodsk Winter 2006. USU Contest1154004

1464LightPetrozavodsk Winter 2006. USU Contest1702780

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1153971

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1124068

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest3510722

1536Delights of Pipe-weedUSU Personal Contest 2007517890

1548Sakura and StatisticsUral Championship 20072812547

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest517587

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest468265

1589SokobanNEERC 2007 Eastern Subregional924195

1594Aztec Treasure884187

1596Knight Mare318118

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest944174

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest914298

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest794878

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest536891

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional556580

1653Death ConveyorNEERC 2008 Eastern Subregional635859

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest606051

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1083590

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest844506

1668Death Star 2Petrozavodsk Winter 2008. USU Contest675501

1672Droid fliesPetrozavodsk Summer 2008. USU Contest359374

1674Drunk KingPetrozavodsk Summer 2008. USU Contest615941

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest754963

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest339689

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1382815

1708Sum of Digits 2Ural Championship 20093110119

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1153197

1763Expert FleaUral Championship 2010645205

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest456593

1840Victim of AdvertisingUral Championship 2011416977

1842Local RootsPetrozavodsk Summer 2010. USU Contest515663

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest754064

1848Fly HuntPetrozavodsk Summer 2010. USU Contest694372

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest426634

1906The Lost CivilizationUral Championship 2012386611

1952To Kill the DragonPetrozavodsk Winter 2013. Ural FU Contest239099

1954Five PalindromesPetrozavodsk Winter 2013. Ural FU Contest743575

2016Magic and ScienceNEERC 2014 Eastern Subregional316534

2054AstronomyUral Championship 2015326062

2076VasianaNEERC 2015 Eastern Subregional Qualifier276378

2082PokerUral Championship 2016256544

2131Open CupLater is better than never225015

2137Dynamic string complexityLater is better than never205349
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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