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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5452749

1074Very Short ProblemUSU Personal Contest 20016572109

1148Building TowersDSAP Vietnam Online Contest November 20012841726

1166Funny Card GameNEERC 2001 Northern Subregional1383508

1171Lost in SpaceRomanian Online Contest December 20013941257

1177Like ComparisonsUSU Personal Contest 20023991244

1199Mouse1163848

1216Two Pawns and One KingUSU Championship 20022432029

1239Ghost BustersNEERC 20021563096

1271Sailing DirectionsUSU Championship 20031054515

1312TrayUral Championship 2004. Round 11642999

1344Gigantic TurnipUSU Championship 20041144244

1369Cockroach RaceUral Championship 2005. Round 23411977

1374MisereUral Championship 2005. Round 1449783

1376Dean's Pyramid 2Ural Championship 2005. Round 13212578

1383Flower-garden DesignsPetrozavodsk Summer 2005. MSU+USU Contest498955

1384Goat in the Garden 4Petrozavodsk Summer 2005. MSU+USU Contest1064555

1388PhotoPetrozavodsk Summer 2005. MSU+USU Contest2913547

1390Shots at WallsPetrozavodsk Summer 2005. MSU+USU Contest508806

1391SnakePetrozavodsk Summer 2005. MSU+USU Contest885391

1394Ships. Version 22614677

1395Pascal vs. C++. Version 22142271

1399Economical Director429321

1415Mobile LifeUSU Championship 2005498928

1432Twofold LuckUSU Personal Contest 2006587571

1438Time Limit ExceededUSU Personal Contest 20061622993

1460WiresPetrozavodsk Winter 2006. USU Contest1114118

1464LightPetrozavodsk Winter 2006. USU Contest1632881

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1143986

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1104118

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2912315

1536Delights of Pipe-weedUSU Personal Contest 2007488261

1548Sakura and StatisticsUral Championship 20072314381

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest448529

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest438690

1589SokobanNEERC 2007 Eastern Subregional628589

1594Aztec Treasure864248

1596Knight Mare288684

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest924232

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest884405

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest774962

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest487443

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional526859

1653Death ConveyorNEERC 2008 Eastern Subregional606075

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest576286

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1063631

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest824578

1668Death Star 2Petrozavodsk Winter 2008. USU Contest655615

1672Droid fliesPetrozavodsk Summer 2008. USU Contest3010485

1674Drunk KingPetrozavodsk Summer 2008. USU Contest596078

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest735053

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest3010354

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1342876

1708Sum of Digits 2Ural Championship 20092711145

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1143202

1763Expert FleaUral Championship 2010625313

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest446665

1840Victim of AdvertisingUral Championship 2011348025

1842Local RootsPetrozavodsk Summer 2010. USU Contest476011

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest724178

1848Fly HuntPetrozavodsk Summer 2010. USU Contest664508

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest377280

1906The Lost CivilizationUral Championship 2012337312

1952To Kill the DragonPetrozavodsk Winter 2013. Ural FU Contest1910252

1954Five PalindromesPetrozavodsk Winter 2013. Ural FU Contest703717

2016Magic and ScienceNEERC 2014 Eastern Subregional267355

2054AstronomyUral Championship 2015286617

2076VasianaNEERC 2015 Eastern Subregional Qualifier246846

2082PokerUral Championship 2016217283

2131Open CupLater is better than never205230

2137Dynamic string complexityLater is better than never175811
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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