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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5482741

1074Very Short ProblemUSU Personal Contest 20016582111

1148Building TowersDSAP Vietnam Online Contest November 20012841730

1166Funny Card GameNEERC 2001 Northern Subregional1393492

1171Lost in SpaceRomanian Online Contest December 20013981248

1177Like ComparisonsUSU Personal Contest 20023991247

1199Mouse1193768

1216Two Pawns and One KingUSU Championship 20022442025

1239Ghost BustersNEERC 20021573085

1271Sailing DirectionsUSU Championship 20031074448

1312TrayUral Championship 2004. Round 11643006

1344Gigantic TurnipUSU Championship 20041144253

1369Cockroach RaceUral Championship 2005. Round 23611481

1374MisereUral Championship 2005. Round 1459626

1376Dean's Pyramid 2Ural Championship 2005. Round 13212605

1383Flower-garden DesignsPetrozavodsk Summer 2005. MSU+USU Contest508825

1384Goat in the Garden 4Petrozavodsk Summer 2005. MSU+USU Contest1064564

1388PhotoPetrozavodsk Summer 2005. MSU+USU Contest3013237

1390Shots at WallsPetrozavodsk Summer 2005. MSU+USU Contest518680

1391SnakePetrozavodsk Summer 2005. MSU+USU Contest895348

1394Ships. Version 2731147

1395Pascal vs. C++. Version 22162256

1399Economical Director429345

1415Mobile LifeUSU Championship 2005508798

1432Twofold LuckUSU Personal Contest 2006587588

1438Time Limit ExceededUSU Personal Contest 20061632983

1460WiresPetrozavodsk Winter 2006. USU Contest1134061

1464LightPetrozavodsk Winter 2006. USU Contest1672822

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1143995

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1104128

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest3012039

1536Delights of Pipe-weedUSU Personal Contest 2007508006

1548Sakura and StatisticsUral Championship 20072513595

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest478103

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest448553

1589SokobanNEERC 2007 Eastern Subregional825485

1594Aztec Treasure864263

1596Knight Mare288727

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest934205

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest904331

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest774978

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest507218

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional536772

1653Death ConveyorNEERC 2008 Eastern Subregional606095

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest576307

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1063643

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest824593

1668Death Star 2Petrozavodsk Winter 2008. USU Contest655634

1672Droid fliesPetrozavodsk Summer 2008. USU Contest3210019

1674Drunk KingPetrozavodsk Summer 2008. USU Contest606011

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest745009

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest3010389

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1352866

1708Sum of Digits 2Ural Championship 20092810889

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1143214

1763Expert FleaUral Championship 2010625334

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest456571

1840Victim of AdvertisingUral Championship 2011367710

1842Local RootsPetrozavodsk Summer 2010. USU Contest495834

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest744098

1848Fly HuntPetrozavodsk Summer 2010. USU Contest684413

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest397016

1906The Lost CivilizationUral Championship 2012357024

1952To Kill the DragonPetrozavodsk Winter 2013. Ural FU Contest219645

1954Five PalindromesPetrozavodsk Winter 2013. Ural FU Contest723647

2016Magic and ScienceNEERC 2014 Eastern Subregional287015

2054AstronomyUral Championship 2015296494

2076VasianaNEERC 2015 Eastern Subregional Qualifier256703

2082PokerUral Championship 2016246695

2131Open CupLater is better than never205298

2137Dynamic string complexityLater is better than never195480
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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